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LONG DISTANCE CARRIER

CODE ASSIGNMENTS

Industry Analysis DivisionCommon Carrier Bureau

Federal Communications CommissionJune 1997

This report is available for reference in the Common Carrier Bureau's Public Reference Room, 2000 M Street,N.W., Room 575. Copies may be purchased by calling International Transcription Services, Inc. (ITS) at (202)857-3800. The report can be downloaded [file name LDC1Q97.ZIP] from the FCC-State Link internet siteat http://www.fcc.gov/ccb/stats on the World Wide Web. The report can also be downloaded from the FCC-State Link computer bulletin board system at (202) 418-0241.

TABLE OF CONTENTS

TABLE 1. NUMBER OF CARRIER IDENTIFICATION CODES ASSIGNED BY BELLCOMMUNICATIONS RESEARCH (FIRST QUARTER 1982 THROUGH FIRST QUARTER 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

TABLE 2. LIST OF FGB CIC CODE ASSIGNMENTS, SORTED BY CIC CODE . . . . . . . . . . . . . . . . 9

TABLE 3. LIST OF FGB CIC CODE ASSIGNMENTS, SORTED BY ENTITY . . . . . . . . . . . . . . . . . . 16

TABLE 4. LIST OF FGD CIC CODE ASSIGNMENTS, SORTED BY CIC CODE . . . . . . . . . . . . . . . . 23

TABLE 5. LIST OF FGD CIC CODE ASSIGNMENTS, SORTED BY ENTITY . . . . . . . . . . . . . . . . . . 33

TABLE 6. 500 CODE BALANCE SHEET (AS OF MARCH 31, 1997) . . . . . . . . . . . . . . . . . . . . . . . . . 43

TABLE 7. NUMBER OF 500 CODES ASSIGNED (THIRD QUARTER 1994 THROUGH FIRSTQUARTER 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

TABLE 8. LIST OF 500 CODE ASSIGNMENTS SORTED BY CODE . . . . . . . . . . . . . . . . . . . . . . . . . 44

TABLE 9. LIST OF 500 CODE ASSIGNMENTS SORTED BY ENTITY . . . . . . . . . . . . . . . . . . . . . . . 48

TABLE 10. 555 LINE NUMBER BALANCE SHEET (AS OF MARCH 31, 1997) . . . . . . . . . . . . . . . . . . 52

TABLE 11. NUMBER OF 555 LINE NUMBERS ASSIGNED (SECOND QUARTER 1994 THROUGH FIRST QUARTER 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

TABLE 12. LIST OF 555 LINE NUMBER ASSIGNMENTS SORTED BY LINE NUMBER . . . . . . . . . 53

TABLE 13. LIST OF 555 LINE NUMBER ASSIGNMENTS SORTED BY ENTITY . . . . . . . . . . . . . . . . 71

TABLE 14. TELEPHONE NUMBERS ASSIGNED FOR 800 SERVICE (APRIL 1993 THROUGH APRIL 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

TABLE 15. TELEPHONE NUMBERS ASSIGNED FOR 888 SERVICE (FEBRUARY 1996 THROUGH APRIL 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

TABLE 16. 900 CODE BALANCE SHEET (AS OF MARCH 31, 1997) . . . . . . . . . . . . . . . . . . . . . . . . . 91

TABLE 17. NUMBER OF 900 CODES ASSIGNED TO INTEREXCHANGE CARRIERS (FIRST QUARTER 1987 THROUGH FIRST QUARTER 1997) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

TABLE 18. LIST OF 900 CODE ASSIGNMENTS SORTED BY CODE . . . . . . . . . . . . . . . . . . . . . . . . . 93

TABLE 19. LIST OF 900 CODE ASSIGNMENTS SORTED BY ENTITY . . . . . . . . . . . . . . . . . . . . . . . 96

LONG DISTANCE CARRIER CODE ASSIGNMENTS

This report contains information on carrier identification codes (CICs) and othertelecommunications numbering resources. The information in this report is used within thetelephone industry and by users of telephone services for a variety of purposes. CICs are usedwithin the telephone industry to, among other things, identify particular long distance carriersand other access customers in order to bill and route traffic to them. As part of carrier accesscodes, CICs are also used by customers to reach alternative carriers, such as "dial-around" longdistance providers.

The separate codes assigned to providers of 500 and 900 services are used by local telephonecompanies to direct calls to the service provider. Both residential and business customersfrequently seek information from the Commission about these codes to identify particularservice providers.

Manufacturers require information on numbering resources to design and producetelecommunications equipment efficiently. Vendors of equipment frequently seek informationon the growth of numbering resources to estimate potential demand. Major corporations andgovernment agencies that operate their own telecommunications networks need information onnumbering resources to efficiently interconnect their networks with the public switched network.

More generally, the evolution of numbering resources provides insight into the development ofcompetition in the long distance market. This report presents brief background information onthe administration of numbering resources and then summarizes the information specificallyrelated to carrier identification codes, 500 service, 555 line number assignments, 800 and 888service, and 900 service.

Numbering Resources Administration

The North American Numbering Plan (NANP) is the basic format for telephone numbers in theUnited States (including Puerto Rico, the Virgin Islands, Guam, and the Commonwealth of theNorthern Mariana Islands), Canada, Bermuda and the following Caribbean countries: Anguilla,Antigua, Bahamas, Barbados, British Virgin Islands, Cayman Islands, Dominica, DominicanRepublic, Grenada, Jamaica, Montserrat, St. Kitts & Nevis, St. Lucia, St. Vincent, Turks &Caicos Islands, and Trinidad & Tobago. Each telephone number within the NANP is a uniqueten-digit number that consists of three parts. The first is a three-digit code -- the NumberingPlan Area or "NPA" code, which usually identifies a specific geographic area and is usuallysimply called an "area code". In other cases, the first three digits provide caller access to uniqueservices (e.g., 500, 800, 888, and 900 service). The last two parts of each ten-digit number are athree-digit central office code and a four-digit line number. Together, these seven digits usuallymake up an ordinary local telephone number. In some cases, such as 500 and 900 service, theoffice code has special uses other than identifying the geographic location of a central office. Inthe following discussion, the three-digit central office code is sometimes referred to as the"office code" or the "NXX" code.

See Administration of the North American Numbering Plan, CC Docket No. 92-237, Report1

and Order, 11 FCC Rcd 2588 (1995).

Access providers are typically local exchange carriers that provide access customers with2

circuits that interconnect to the local carrier's public switched telephone network. Accesscustomers include interexchange carriers, wireless carriers, competitive access providers, andlarge corporate users. Commission rules require that "interstate access services should be madeavailable on a non-discriminatory basis and, as far as possible, without distinction between enduser and IC [interexchange carrier] customers." Petition of First Data Resources, Inc., Regardingthe Availability of Feature Group B Access Service to End Users, Memorandum Opinion andOrder, 1986 WL 291786, (1986), released May 28,1986 (First Data Resources Order) at para.13.

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Section 251 (e)(1) of the Telecommunications Act of 1996, which amends the CommunicationsAct of 1934, requires that the Federal Communications Commission "create or designate one ormore impartial entities to administer telecommunications numbering and to make such numbersavailable on an equitable basis." Section 251(e)(1) also clarifies that the FCC has "exclusivejurisdiction over those portions of the North American Numbering Plan that pertain to theUnited States . . . [but does not] preclude the Commission from delegating to State commissionsor other entities all or any portion of such jurisdiction." The Network Services Division of theCommission's Common Carrier Bureau oversees numbering resource matters.

The NANP was introduced by AT&T in 1947. AT&T administered the NPA codes centrally,and the local exchange carriers administered the NXX codes and line numbers. After the AT&Tdivestiture in 1984, Bell Communications Research (Bellcore) assumed the centralized numberadministration functions.

On July 13, 1995, the Commission adopted a new model for administration of the NANP,announcing its intention to establish the North American Numbering Council (NANC), a federaladvisory committee. The NANC will, among other tasks, advise the Commission and other1

NANP governments on numbering issues (such as local number portability implementation),recommend selection of and guide an impartial NANP Administrator, and conduct initialresolution of certain numbering disputes. The NANP Administrator selected by the NANC willprocess number resource applications and maintain administrative numbering databases. Operational details and additional activities of the NANP Administrator are to be determined bythe NANC. Additional information about the NANC is available from the Commission'sinternet site at (http://www.fcc.gov/ccb/Nanc).

Carrier Identification Codes

CICs are numeric codes that, as originally devised, enabled local exchange carriers (LECs), asproviders of interexchange access services, to identify access customers in order to bill and routetraffic to such customers. Bellcore, as the current NANP Administrator, assigns these codes2

using guidelines developed by the Industry Carriers Compatibility Forum (ICCF), under theauspices of the Carrier Liaison Committee (CLC) which is sponsored by the Alliance forTelecommunications Solutions (ATIS), an industry forum. Currently, the Industry Numbering

See Carrier Identification Code Assignment Guidelines, INC 95-0127-006, formerly ICCF3

92-0726-002, Revision September 1996 (CIC Assignment Guidelines, September 1996).

See First Data Resources Order, cited above at n.2.4

There are other interconnection access arrangements, not discussed in detail in this report, that5

do not require a CIC.

There currently exists a transition period concerning the conversion of Feature Group D codes6

from three-digits to four-digits. This period will end January 1, 1998. With three-digit codes,customers are able to dial 10XXX where XXX is the three-digit CIC. With the conversion of codesfrom three-digits to four-digits, customers will dial 101XXXX where XXXX is the four- digit CICcode.

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Committee (INC), a subcommittee of the ICCF, develops these guidelines. The most recentversion of these guidelines was issued in September 1996. 3

Currently, CICs are used for purposes beyond those for which they were originally designed. CICs facilitate competition by enabling callers to use the services of any number oftelecommunications service providers. For example, they enable callers to reach any carrier(presubscribed or otherwise) from any telephone, by dialing a carrier access code that includes aCIC.

The number of firms seeking and obtaining CICs provides the most useful information availableon the entry of new firms into the long distance market. This is particularly the case for yearsprior to 1986, when the Commission decided that interstate access services should be madeavailable on a non-discriminatory basis to end users as well as to interexchange carriers (IXCs). 4

In addition, the CIC information is current: firms acquiring CICs for the first time are reportedwithin 30 days.

An IXC or other access customer must have a CIC to purchase Feature Group D or FeatureGroup B interconnection access from a local telephone company. Feature Group D, which5

allows a customer of an IXC to place calls on a "1-plus" basis, is the "equal access" capabilitydeployed by the Bell telephone companies following their divestiture from AT&T. Feature6

Group B differs somewhat from Feature Group D in that an IXC's customer must first dial 950and then the four-digit CIC to place a call. The total number of CICs assigned thus reflects thenumber of firms seeking high-quality interconnection access arrangements with local telephonecompanies.

The growth in the number of CICs over time is shown in Table 1. As of March 31, 1997, 882Feature Group B codes and 1,395 Feature Group D codes had been assigned. The firms holdingFeature Group B codes are listed in Tables 2 and 3; those with Feature Group D codes are listedin Tables 4 and 5.

A number of firms that are not assigned a CIC may also offer long distance telecommunicationsservices for sale. Typically, these firms resell the services provided by others. No accuratecount of the number of these carriers is available. Other firms engaged in long distance

The history of CIC expansion is outlined in the publication, Long Distance Carriers and7

Code Assignments, May 22, 1995, mimeo #53905.

The Industry Carriers Compatibility Forum (ICCF), an organization that develops guidelines8

of number administration, has defined Personal Communication Services as "a set of capabilitiesthat allows some combination of personal mobility, terminal mobility and service profilemanagement. It enables each personal communication service user to participate in a user-defined set of subscribed services, and initiate and/or receive calls on the basis of somecombination of a personal number, terminal number, and a service profile across multiplenetworks at any terminal, fixed or mobile, irrespective of geographic location." PersonalCommunications Services (PCS) N100 NXX Code Assignment Guidelines, ICCF 93-1130-011,S.1.1. (Nov. 17, 1993). We note that PCS in the context of 500 service is distinct from the termPCS that refers to certain types of commercial mobile radio service.

The possible combinations of line number digits, from 0000 to 9999, yield 10,000 possible9

numbers for each office code.

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telecommunications are not counted because they use special access or engage in sellingtransmission capacity to carriers and therefore do not need to acquire a CIC number.

As competition has developed, CICs, which initially were two digits in length, have beenexpanded to three and to four digits to assure there are enough CICs to meet the demand forthem. As with area code changes, changing the number of digits in CICs requires advance7

planning and may require a transition period. Carriers may have to reprogram and upgradenetwork switches. Callers must be educated about the changes, equipment owners may need toreprogram and upgrade PBS switches, and manufacturers may need to develop new software andhardware for equipment owners and carriers. The Network Services Division of theCommission's Common Carrier Bureau addresses these matters.

500 Service

In 1993, a new set of codes for personal communications services was established. Area code8

500 was designated for this purpose. One of the potential uses for 500 codes is that anindividual or business can keep the same phone number (NXX-XXXX) if it moves from its central office code area (NXX), even to another state. Five hundred codes would thus allownon-geographic numbering.

Companies seeking to offer 500 service receive office codes, each of which can be used for10,000 telephone numbers. All 500 calls that are dialed as 1-500-550-XXXX are routed to9

MCI, regardless of the last four digits dialed. Similarly, calls that are dialed as 1-500-288-XXXX are routed to AT&T. Because each of 1,000 office codes can be associated with 10,000line numbers, there are theoretically 10,000,000 potential 500 numbers. As a practical matter,however, fewer than 80% of these potential numbers are usable. Telephone numbers that beginwith a 1 or 0, for example, are not used.

Table 6 is a "balance sheet" for the assignment of 500 codes and the types of companies to whichthe codes are assigned. Table 7 shows the assignment of codes by quarter. The first 500 codes

In the Bellcore guidelines for 555 line numbers, the regional numbers are referred to as "non-10

national" numbers.

This data is available in the publication, Long Distance Carriers and Their Code Assignments,11

October 29, 1993, mimeo #40233.

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were assigned August 10, 1994. As of March 31, 1997, 520 codes had been assigned. Tables 8and 9 list the assignment of 500 office codes service providers within area code 500.

555 Line Numbers

The assignment of 555 line numbers differs from that of 500 codes in that 555 represents theoffice code (NXX) and remains a constant. The numbers being assigned are the line numbers--the last four digits of a seven-digit number telephone number. A 555 line number that has beenin use many years is 555-1212, which is used for directory assistance. This particular 555number will continue to be used for that purpose. Non-communications companies as well ascommunications companies can obtain line number assignments for 555 line numbers. Like thetelephone number for directory assistance, these numbers are to be used for informationalpurposes.

The 555 line numbers are being assigned on a national or regional basis. A national 555 numberis assigned to an entity for use in most or all of the area codes in the United States, whereas aregional 555 number is assigned to an entity for use in a specific geographic area (less than 30%of the area codes or states or provinces). Thus, a regional 555 number may be assigned to10

more than one entity if it is to be used in different geographic regions. A national numbercannot be assigned to more than one entity.

Table 10 is a "balance sheet" containing information on the assignment of 555 line numbers. Table 11 tracks the assignment of 555 line numbers. The first 555 line numbers were assignedon May 12, 1994. As of March 31, 1997, 2,535 line numbers (i.e. 555-XXXX) had beenassigned. Tables 12 and 13 show the assignment of telephone numbers with 555 as the firstthree digits.

800 and 888 Service

Toll-free 800 and 888 are services for which the called party pays for the call. Prior to 1993,toll-free 800 calls were routed in a manner similar to that being used for 500 and 900 calls, withthe NXX office code indicating the long distance carrier handling the call. Information isavailable (in the same format and sequence as the tables displaying 900 codes) from the FCCindicating the status of the 800 market as of April 30, 1993; this is the last available data underthe old 800 routing system.11

On May 1, 1993, procedures for routing 800 calls were changed. The first three digits of 800calls no longer indicate the carrier handling the call. The new system enables customers to

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change long distance carriers while still retaining the same 800 number. This system of"portability" relies on a large data base maintained by Database Service Management, Inc.(DSMI), which is a subsidiary of Bellcore. During the two years since 800 portability wasimplemented, the number of working 800 telephone numbers is reported to have tripled. Thegrowth of 800 telephone numbers is shown in Table 14. This growth has caused the nearexhaust of 800 numbers. In March 1996, the 888 code was added to support the increase indemand for toll-free numbers (codes were first assigned in February 1996). The 888 code hasnearly 8 million combinations. Table 15 shows the growth of 888 telephone numbers starting in1996.

900 Service

900 service is a service for which the calling party is charged for the call at rates different fromthose charged for ordinary long distance calls. A common use is the provision of information-type services such as sports scores, music industry updates, stock quotes, and weather forecasts. Some companies use 900 numbers for software support -- with callers, in effect, paying a per-minute consulting fee. The provision of 900 service typically involves two parties: a carrier to handle the transmissionand an entertainment or information provider. The information provider is not regulated by theFCC but is regulated by the Federal Trade Commission with respect to advertising, billing 900services, and the message preamble. The carrier that transmits a 900 call usually handles thebilling and collection as well. Because billing and collection is nonregulated, charges for thisactivity are usually covered by contract. The carrier typically charges both a per-minute fee forthe actual transmission of the message plus a share of the gross receipts for handling the billingand collection.

The assignment of 900 codes is similar in many respects to the assignment and use of 500 codesdiscussed above. For example, the assignment of each NXX code represents 10,000 individualline numbers, and the codes are not transferable among carriers.

Tables 16 through 19 are almost identical in format to the tables presented earlier for 500service. Table 16 is a "balance sheet" for the assignment of 900 numbers, indicating the numberof codes assigned and the types of carriers to which the codes are assigned. Table 17 tracks theassignment of codes to potential competitors in the market for 900 services over time. Tables 18and 19 provide a list of all assigned 900 codes and the firms holding those codes.

Not all of the 900 codes assigned by Bellcore are in use at any particular time. In some cases, afirm that has acquired a 900 code may not yet have commenced operation. In other cases, firmsmay have merged or terminated operations and the numbers have not yet been reassigned.

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* * * * * * * * * * *

This report is available in the Common Carrier Bureau reference room, 2000 M Street, N.W.,Room 575, Washington, D.C. 20554. The data contained in this report can be obtained [filename LDC1Q97.ZIP] from the FCC-State Link internet site at http://www.fcc.gov/ccb/stats onthe World Wide Web. The report can also be downloaded from the FCC-State Link computerbulletin board at (202) 418-0241. Copies of the report may be purchased by calling InternationalTranscription Services, Inc. (ITS) at (202) 857-3800. For more information, contact KatieRangos at (202) 418-0940.

TABLE 1NUMBER OF CARRIER IDENTIFICATION CODES (CICS)

ASSIGNED BYBELL COMMUNICATIONS RESEARCH

1982 - 1992

NUMBER OF NUMBER OFYEAR QUARTER CICS YEAR QUARTER CICS

ASSIGNED ASSIGNED

1982 FIRST QUARTER 11 1988 FIRST QUARTER 602SECOND QUARTER 13 SECOND QUARTER 621THIRD QUARTER 13 THIRD QUARTER 601FOURTH QUARTER 11 FOURTH QUARTER 639


1984 FIRST QUARTER 54 1990 FIRST QUARTER 774SECOND QUARTER 86 * SECOND QUARTER 794THIRD QUARTER 121 THIRD QUARTER 817FOURTH QUARTER 155 FOURTH QUARTER 791



1987 FIRST QUARTER 444SECOND QUARTER 495THIRD QUARTER 530FOURTH QUARTER 573

NUMBER OF CARRIER IDENTIFICATION CODES (CICS)ASSIGNED BY

BELL COMMUNICATIONS RESEARCH1993 - 1997

YEAR QUARTER FGB FGD

1993 FIRST QUARTER 694 ** 709SECOND QUARTER 738 746THIRD QUARTER 739 760FOURTH QUARTER 753 796

1994 FIRST QUARTER 781 815SECOND QUARTER 795 845THIRD QUARTER 805 899***FOURTH QUARTER 819 947

1995 FIRST QUARTER 829 1,016 SECOND QUARTER 832 1,082 THIRD QUARTER 843 1,146 FOURTH QUARTER 852 1,209

1996 FIRST QUARTER 865 1,253 SECOND QUARTER 876 1,300 THIRD QUARTER 875 1,315 FOURTH QUARTER 878 1,337

1997 FIRST QUARTER 882 1,395

* CONVERSION FROM 2-DIGIT CODES TO 3-DIGIT CODES.** CONVERSION FROM 3-DIGIT CODES TO 4-DIGIT CODES.*** INCLUDES BOTH 3-DIGIT CODES AND 4-DIGIT CODES.

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TABLE 2LIST OF FGB CIC CODE ASSIGNMENTS

SORTED BY CIC CODE(AS OF MARCH 31, 1997)

CODE ASSIGNED TO CODE ASSIGNED TO0002 WORLDCOM, INC. 0322 AMERICAN SHARECOM, INC.0004 ATX TELECOMMUNICATIONS SERVICES 0327 ECI COMMUNICATIONS0005 MACY'S OF CALIFORNIA 0330 TEL-SHARE0013 ACCESS SERVICES dba PACIFIC NW TELECOM 0338 MIDCO COMMUNICATIONS0015 HAWAIIAN TELEPHONE COMPANY 0339 COMMUNICATION CABLE LAYING CO., INC.0016 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 0340 TELECOMM. TECHNOLOGIES, INC. (TEL-TECH)0017 NCHE TELECOMMUNICATIONS NETWORK, INC. 0349 COMMUNICATION CABLE LAYING CO., INC.0019 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 0356 EASTMAN KODAK COMPANY0025 INTER CONTINENTAL TELEPHONE 0357 MANITOWOC LONG DISTANCE SERVICE0028 AMERICAN LONG DISTANCE CORPORATION 0358 LCI INTERNATIONAL TELECOM CORP.0030 US LONG DISTANCE 0366 AMERICAN TELCO, INC.0035 LONG DISTANCE AMERICA 0367 WORLDCOM, INC.0045 PSA, INC. 0370 AMERICAN NETWORK EXCHANGE INC.0048 ETSC 0373 ECONO-LINE WACO0049 HEDGES & ASSOCIATES 0375 AT&T EASYLINK SERVICES0056 SP TELECOM 0378 TEL SERV0057 NATIONWIDE LONG DISTANCE, INC. 0380 TELESERV CORPORATION0060 ECONOMY TELEPHONE, INC. 0384 VOICECOM SYSTEMS, INC.0062 KENTUCKY TELEPHONE CORP. 0390 ONE-2-ONE COMMUNICATIONS0065 ISACOMM, INC. [SPRINT] 0393 INTERMEDIA COMMUNICATIONS, INC.0067 NATIONAL TELEPHONE COMMUNICATIONS, INC. 0396 U.S. TELE-COMM, INC.0070 US LONG DISTANCE 0402 INTEGRETEL, INC.0071 DIGITAL NETWORK, INC. 0409 TELEVOX PUBLIC COMMUNICATIONS, INC.0074 VALU-LINE OF ANGLETON 0410 CALL AMERICA/PALM DESERT0078 US LONG DISTANCE 0420 PHOENIX NETWORK0080 WORLDCOM, INC. 0421 WORLDCOM, INC.0083 TELCO 0441 ESCONDIDO TELEPHONE COMPANY0085 WESTEL, INC. 0442 WORLDCOM, INC.0086 FRONTIER COMMUNICATIONS OF THE MID ATLANTIC, INC. 0446 WORLDCOM, INC.0089 HARBOR BAY TELECOMMUNICATIONS 0461 TTE OF CHARLESTON0093 TCA COMMUNICATIONS 0462 TMC OF LEXINGTON0110 TANDEM ACCESS FOR DATABASE QUERY 0469 GMW COMPANY0136 EASTERN TELECOM INTERNATIONAL 0470 COSHOCTON L.D.S.0139 ASCENDING TECHNOLOGIES 0475 FIBERFONE OF FLORIDA, INC.0171 SUPERTEL COMMUNICATIONS, INC. 0480 STAT COMMUNICATIONS0189 STATE OF TEXAS - GSC 0486 EXECULINES OF SACRAMENTO0190 BCS COMMUNICATIONS 0487 CAMBRIDGE COMMUNICATIONS0191 TELEPHONE SUPPORT SYSTEMS, INC. 0488 WORLDCOM, INC.0197 FLEABUSTERS 0489 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0200 US WATS 0490 PHOENIX COMMUNICATIONS GROUP, INC.0202 EXECULINES OF THE NORTHWEST, INC. 0497 ECON-A-CALL INC. OF HAYS0204 UNITED TELEPHONE LONG DISTANCE 0499 TELEPHONE ASSOC. dba THIEF RIVER FALLLS LD0207 SHENANDOAH LONG DISTANCE COMPANY 0505 CENTURY TELECOMMUNICATIONS, INC.0210 STARLINE, INC. 0511 EXECULINES OF SACRAMENTO0211 FRONTIER COMMUNICATIONS INTERNATIONAL, INC. 0517 MONTANA LONG DISTANCE, INC.0214 TCA COMMUNICATIONS 0519 MIDCOM, INC.0218 KRISTIN ENTERPRISES dba TEL-CENTRAL 0521 ROANOKE & BOTETOURT TELEPHONE CO.0220 TELECOM*USA [MCI] 0522 TELEFIND CORPORATION0221 CAPITAL TELECOMMUNICATIONS, INC. 0527 INDEPENDENCE TELEPHONE CO.0223 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX) 0529 TELECOM WEST0228 USLINK LONG DISTANCE 0535 WORLDCOM, INC.0229 U S COMNET 0537 LCI INTERNATIONAL0244 PHOENIX NETWORK 0542 UNITED STATES CELLULAR CORPORATION0260 ADVANCED COMMUNICATIONS SYSTEMS INC. 0551 ACCESS-PLUS, INC.0264 MIIC dba POLARIS TELCOM 0552 LAKE STATES COMMUNICATIONS0266 COMSYSTEMS NETWORK SERVICES 0556 US LONG DISTANCE0268 THE COMMUNIGROUP 0558 MIDCOM OF ARIZONA, INC.0271 U.S. NETWORK 0561 LCT LONG DISTANCE0272 BELL ATLANTIC COMMUNICATIONS, INC. 0566 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX)0275 SWIFF TRAIN COMMUNICATIONS 0572 PAC TEL PAGING, A PACIFIC TELESIS CO.0277 FIRST CHOICE LONG DISTANCE, INC. 0578 TTI TELECOMMUNICATIONS, INC.0282 ACTION TELCOM CO. 0579 ALIANT SYSTEMS, INC.0289 VACATION VILLAGES OF AMERICA, INC. 0589 WORLDCOM, INC.0297 PACIFIC GATEWAY EXCHANGE 0592 ESS VENTURES, INC.0298 U.S. NET, INC. 0596 INTERNET, INC.0300 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET) 0607 LONG DISTANCE COMMUNICATIONS0302 AUSTIN BESTLINE 0608 MODULAR DATA, INC.0306 COLORADO RIVER COMMUNICATIONS 0616 INTER COMM. MANAGEMENT NETWORK0320 DIGITEL 0618 RSL COM U.S.A.

9

TABLE 2LIST OF FGB CIC CODE ASSIGNMENTS--CONTINUED


CODE ASSIGNED TO CODE ASSIGNED TO0624 MASTERCARD INTERNATIONAL 0870 BLUE RIDGE TELEPHONE0627 NATIONWIDE EMERGENCY TELECOMM. SYSTEM 0872 SPRINT0634 ECONO-LINE MIDLAND 0878 VALLEY STAR-TEL0637 FOX COMMUNICATIONS CORP. 0879 US COMMUNICATIONS,INC.0638 NORTHWEST TELECOM, LTD. 0883 WORLDCOM, INC.0639 ARCADA COMMUNICATIONS 0884 WORLDCOM, INC.0642 R,D,&J COMMUNICATIONS MGMT., INC. 0885 THE COMMUNIGROUP OF KC0652 BELL ATLANTIC COMMUNICATIONS, INC. 0886 ALIANT SYSTEMS, INC.0654 CINCINNATI BELL LONG DISTANCE 0887 TELEMANAGEMENT CONSULTANTS CORPORATION0657 NATIONAL TELECOM. OF FLORIDA 0888 MCI0658 OCI 0899 TELEPHONE EXPRESS0661 COASTAL TELEPHONE COMPANY 0905 PIZZA HUT, INC.0663 AMERICAN TELCO NETWORK SERVICES INC. 0908 NTC, INC.0664 INTERMOUNTAIN DIGITAL NETWORK 0909 CHADWICK TELEPHONE0669 VALU-LINE OF AMARILLO 0912 MRC TELECOMMUNICATIONS, INC.0675 COMMUNICATION SERVICES OF COLORADO 0913 ATS COMMUNICATIONS, INC.0679 FEIST LONG DISTANCE 0914 CENTURY TELECOMMUNICATIONS, INC.0684 LCT LONG DISTANCE 0922 FEB CORPORATION0687 NTS COMMUNICATIONS, INC. 0927 ADVANCED RADIO COMMUNICATIONS SYSTEMS0693 DELUXE DATA SYSTEMS 0929 STENOCALL0695 OPTICALL COMMUNICATIONS SERVICES 0931 L.D. NETWORK, INC.0698 NYNEX 0937 ACCESS LONG DISTANCE0699 TEL-COM, INC. 0945 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0700 TEL AMERICA 0950 BENEFICIAL DATA PROCESSING CORP.0705 EXECULINES OF THE NORTHWEST, INC. 0951 WORLDCOM, INC.0709 TEL AMERICA 0952 WILKES LONG DISTANCE SERVICE0714 PHONELINK, INC. 0956 BANK OF AMERICA, NT & SA0727 SWITCH 2000, INC. 0959 AMRIGON ENTERPRISES, INC.0733 WORLDCOM, INC. 0961 TELEPHONE SYSTEMS OF GEORGIA0737 WORLDCOM, INC. 0965 HOGAN COMMUNICATIONS0738 WORLDCOM, INC. 0966 COASTAL AUTOMATED COMMUNICATIONS CORP.0740 PUBLIC SWITCH CORP. 0985 FONOROLA0741 WORLDCOM, INC. 0987 WORLDCOM, INC.0742 WORLDCOM, INC. 0988 AT&T EASYLINK SERVICES0746 NATIONAL TELEPHONE EXCHANGE (PA) 0989 KRB TELECOM0752 EXCEL TELECOMMUNICATIONS, INC. 0990 VISA USA INC.0756 US LONG DISTANCE 0996 MIDCO COMMUNICATIONS0757 PACE LONG DISTANCE SERVICE 1001 WORLDCOM, INC.0759 TELENET COMM. CORP., (SPRINT) 1003 FRONTIER COMMUNICATIONS INTERNATIONAL, INC.0760 GTE TELECOM 1006 WORLDCOM, INC.0761 MELLON BANK N.A. 1007 TELAMARKETING COMMUNICATIONS, INC.0762 STATE OF CALIFORNIA - CALNET 1008 WORLDCOM, INC.0765 NETWORK LONG DISTANCE 1009 TWT-HEARTLINE0766 YAVAPAI TELEPHONE EXCHANGE 1010 FLEX COMMUNICATIONS SYSTEM0770 VISA USA INC. 1011 WORLDCOM, INC.0773 AMERICAN L.D. OPERATOR SERVICE CO. 1012 LITEL/LCI INTERNATIONAL0774 CITYNET COMMUNICATIONS, INC. 1014 MARATHON COMMUNICATIONS0777 SPRINT 1018 SHARED USE NETWORK0787 STAR TEL OF ABILENE 1021 WORLDCOM, INC.0788 C-COM 1022 MCI0789 WORLDCOM, INC. 1026 NET-TEL CORPORATION0794 AMERITEL 1027 WORLDCOM, INC.0800 WORLDCOM, INC. 1031 WORLDCOM, INC.0805 OCI 1033 SPRINT0806 NACT 1036 LONG DISTANCE SAVERS0823 UNITED BANK OF DENVER 1037 BN1 TELECOMMUNICATIONS, INC.0825 FIBERLINE NETWORK COMMUNICATIONS L.P. 1039 AMERISYSTEMS, INC.0829 TELEPHONE ASSOC. LONG DISTANCE SVCS. 1040 U.S. SIGNAL CORPORATION0832 TELECOM*USA [MCI] 1042 WORLDCOM, INC.0835 TELECOM*USA [MCI] 1044 ALLNET COMM. SVC. INC. [LDX,LEXITEL]0837 TELEPHONE ASSOC. LONG DISTANCE SVCS. 1046 CAM-NET, INC.0839 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX) 1050 WORLDCOM, INC.0843 WORLDCOM, INC. 1052 WEST COAST TELECOMMUNICATIONS, INC.0853 DIGITAL NETWORK, INC. 1053 WORLDCOM, INC.0855 UNION TELEPHONE COMPANY 1054 EASTERN TELEPHONE SYSTEMS, INC.0859 VALU-LINE OF LOUISIANA, INC. 1055 WORLDCOM, INC.0861 NATIONAL PAYPHONE SUPPLY dba RATE SAVER 1058 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC.0867 BITTEL TELECOMMUNICATIONS CORP. 1061 AMERICAN COMMUNICATIONS NETWORK0868 WORLDCOM, INC. 1064 DNS, INC.

10



CODE ASSIGNED TO CODE ASSIGNED TO1066 ALLNET [LEXITEL/LDX] 1274 WORLDCOM, INC.1069 WILLAMETTE VALLEY TELCOM SERVICES 1279 ASSOCIATED TELENET INC./ A CTI COMPANY1072 NBD BANK, NA 1281 BUYPASS CORPORATION1073 COMMUNICATIONS OPTIONS, INC. 1283 IOWA COMMUNICATIONS NETWORK1075 ALLCOMM LONG DISTANCE, INC. 1285 CHECKRITE1076 INTERNATIONAL TELEMEDIA ASSOCIATES, INC. 1286 CINCINNATI BELL LONG DISTANCE1077 GENERAL COMMUNICATION, INC. 1287 CALIFORNIA STATE LOTTERY1082 WORLDCOM, INC. 1288 AT&T COMMUNICATIONS1084 WORLDCOM, INC. 1290 WORLDCOM, INC.1087 TELECOM*USA [MCI] 1291 CALL SAVERS, INC.1088 SBS/MCI 1292 CARD ESTABLISHMENT SERVICES1091 CALL TECHNOLOGY CORP. OF PHILADELPHIA 1293 CINCINNATI BELL LONG DISTANCE1092 TELECOM*USA [MCI] 1295 GLENS FALLS LONG DISTANCE SERVICE1094 MAG CARD 1296 TELNEX, INC.1096 FLEX COMMUNICATIONS SYSTEM 1299 LECNET1097 TRESCOM PUERTO RICO 1305 MOTOROLA INC.1098 NETECH COMM., A US WEST COMPANY 1311 WORLDCOM, INC.1099 PAC-WEST TELECOMM, INC. dba AMERICALL 1312 WORLDCOM, INC.1120 TRT TELECOMMUNICATIONS CORPORATION 1313 STAR TEL, INC.1122 MCI 1314 AT&T WIRELESS SERVICES, INC.1125 ATLANTIC TELEPHONE COMPANY, INC. 1315 WORLDCOM, INC.1133 MCI 1318 LONG DISTANCE SAVERS1141 IFC COMMUNICATIONS 1319 CONQUEST1148 ALLEGAN CELLULAR L.P. 1321 TELECOM*USA [MCI]1149 TELEPHONE TOWNHALL MEETINGS, INC. 1324 FIRST COMMUNICATIONS, INC. (FDR)1177 SPRINT 1325 ECONO CALL LONG DISTANCE SERVICES1178 TEAM ELECTRONICS 1326 DIAL AMERICA, INC.1183 MCI 1331 TEXUSTEL, INC.1188 MCI 1332 NORTHLAND TELEPHONE SYSTEMS LTD.1195 GASCARD 1333 SPRINT1203 CYPRESS TELECOMMUNICATIONS CORP. (CYTEL) 1335 TOUCH AMERICA, INC.1206 FIRST OF AMERICA BANK SE MICHIGAN N.A. 1336 COMMONWEALTH LONG DISTANCE CO.1208 WORLDCOM, INC. 1337 FIRST DATA RESOURCES, INC. (FST)1212 WORLDCOM, INC. 1341 NATIONAL TELE-SAV, INC.1213 LONG DISTANCE TELEPHONE SAVERS 1342 EQUITABLE GAS1215 STAR TEL OF ABILENE 1344 CALL AMERICA BUSINESS COMM. CORP.1216 PENNY FONE 1345 ACC LONG DISTANCE CORPORATION1217 WORLDCOM, INC. 1348 VALU-LINE OF TRI-CITIES1219 CALL USA CORP. 1350 DIAL-NET, INC.1222 MCI 1351 CALL AMERICA OF RIVERSIDE1224 TELECOM*USA [MCI] 1352 STANDARD TELCOM, INC.1225 IOWA NETWORK SERVICES, INC. 1353 WORLDCOM, INC.1226 ONE CALL COMMUNICATIONS 1355 US LINK LONG DISTANCE1227 PEOPLES TELEPHONE COMPANY, INC. 1359 OFF CAMPUS COMMUNICATIONS1231 AMERICAN SHARECOM, INC. 1360 TOUCH AMERICA, INC.1232 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 1361 DAKOTA COOPERATIVE TELECOMM., INC.1233 DELTACOM LONG DISTANCE SERVICES 1362 AMERISYSTEMS, INC.1234 ACC LONG DISTANCE CORPORATION 1363 TEL-TOLL dba ECON-O-DIAL OF BISHOP1235 AUTOMATED TELEPHONE 1372 WORLDCOM, INC.1236 LITEL/LCI INTERNATIONAL 1377 FONES WEST DIGITAL SYSTEMS1237 WORLDCOM, INC. 1379 MSI COMMUNICATIONS, INC.1239 CONSOLIDATED COMMUNICATIONS CORPORATION 1382 LONG DISTANCE MANAGEMENT, INC.1240 DELTACOM, INC. 1383 CARIBBEAN TELEPHONE & TELEGRAPH, INC.1241 AMERICAN LONG LINES 1385 THE SWITCHBOARD1243 BEEHIVE TELEPHONE CO., INC. 1391 OMNICALL COMMUNICATIONS CORPORATION1245 TACONIC LONG DISTANCE SERVICE, CORP. 1392 MOBIL OIL CREDIT CORP.1246 WORLDCOM, INC. 1394 TRESCOM U.S.A., INC./TRESCOM CARIBBEAN1249 PSP MARKETING GROUP, INC. 1399 CENTRAL NEW YORK TALK-TRANSIT1250 DIAL-NET, INC. 1400 AMERICAN SHARECOM, INC.1251 AMERICAN INT'L. TELECOMMUNICATIONS 1401 NATIONAL TELESERVICE1252 LONG DISTANCE/USA [SPRINT] 1406 WORLDCOM, INC.1253 LITEL/LCI INTERNATIONAL 1407 WORLDCOM, INC.1254 WORLDCOM, INC. 1408 WORLDCOM, INC.1257 CONQUEST 1411 AMERICAN EXPRESS TRAVEL RELATED SVCS.1261 PAC-WEST TELECOMM, INC. dba AMERICALL 1412 PENN TELECOM, INC.1262 PAC-WEST TELECOMM, INC. dba AMERICALL 1419 ASSOCIATED GROCERS, INC.1267 WORLDCOM, INC. 1425 CAPITAL NETWORK SYSTEMS INC.1268 THE COMMUNIGROUP OF KC 1426 IBM1273 EDS 1429 EXTELCOM dba EXPRESS TEL

11



CODE ASSIGNED TO CODE ASSIGNED TO1430 DOMINO'S PIZZA INC. 1583 GST NET, INC.1431 WESTERN TELENET, INC. 1586 DIGITAL NETWORK, INC.1432 LCI INTERNATIONAL 1587 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)1434 GENERAL ELECTRIC INFORMATION SERVICES 1591 SANTA FE RAILWAY1435 EXTELCOM dba EXPRESS TEL 1595 VARTEC TELECOM, INC.1436 ALARM CENTER, INC. 1598 TRANSACTION NETWORK SERVICES, INC.1437 AMERICAN NATIONAL TELCOM 1599 TEXAS LONG DISTANCE CONROE1439 STAR TEL, INC. 1600 TELEVALUE CORP. dba ECON-O-DIAL RIDGECREST1440 MFS INTELENET, INC. 1601 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)1443 WESTERN OKLAHOMA INFORMATION SYSTEMS 1602 COMLINK USA1444 ALLNET COMM. SVC. INC. [LDX,LEXITEL] 1604 SB COMMUNICATIONS, INC.1447 FAXNET CORPORATION 1611 COMCENTRAL, INC.1450 WORLDCOM, INC. 1613 AN-SER SERVICES (FROMM SERVICES, INC.)1451 LCI INTERNATIONAL 1614 CINCINNATI BELL LONG DISTANCE1452 LCI INTERNATIONAL 1615 C.P.I. dba GULF STATES COMMUNICATIONS1453 WORLDCOM, INC. 1619 COLORADO RIVER COMMUNICATIONS1456 WORLDCOM, INC. 1620 TELEMONEY SERVICES, A FIRST DATA CORPORATION1457 TRACE COMMUNICATIONS 1621 MID TNC dba MIDCOM COMMUNICATIONS, INC.1459 WESTCOM LONG DISTANCE 1622 MEDE AMERICA1460 INDEPENDENT NETWORK SERVICES 1623 NATIONAL TELESERVICE1463 INTELENET COMMISSION 1628 LDDS1464 WORLDCOM, INC. 1629 COACHELLA VALLEY COMM., dba INTEG. OPER. SVCS.1465 INTELCO 1631 LONG DISTANCE OF MICHIGAN1468 ITC NETWORKS OF UTAH 1632 NATIONAL DATA CORPORATION1472 FIRST CHOICE LONG DISTANCE, INC. 1633 EXECULINES OF SACRAMENTO, INC.1476 TELECOMPUTE CORPORATION 1635 METRO TELEPHONE INC.1477 POPP TELECOM 1641 SOURIS RIVER TELECOMMUNICATIONS COMPANY1478 ITC NETWORKS OF UTAH 1644 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.1482 TELE-SYS, INC. 1645 AMERICAN COMMUNICATIONS TECHNOLOGY, INC.1483 INDEPENDENT LONG DISTANCE 1646 CONTACT AMERICA, INC.1484 COMMUNITY LONG DISTANCE INC. 1648 MID MCND dba MIDCOM COMMUNICATIONS, INC.1485 TELTRUST, INC. 1651 O.L.C. COMPANY1491 NORTHERN ARIZONA COMMUNICATIONS CORP. 1655 MERCHANT-LINK, INC.1492 CARD ESTABLISHMENT SERVICES 1661 COASTAL TELEPHONE CO.1493 EXTELCOM dba EXPRESS TEL 1662 RESOURCE TECHNOLOGY1494 EXTELCOM dba EXPRESS TEL 1666 SYSTEMS 10001500 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 1667 COMMUNICATIONS INC., dba ECI1502 COMMUNICATION TELESYSTEMS INTL. (CTS) 1670 CAMERON LONG DISTANCE1506 ADP AUTONET 1673 TELEPHONE CONNECTIONS, INC.1507 LEE HARBOR HOMES 1674 MSI COMMUNICATIONS, INC.1510 INNOVATIVE COMMUNICATIONS, INC. 1676 PUGET SOUND BANK1514 ANNE ARUNDEL COUNTY 1678 VALU-LINE OF KANSAS, INC.1515 FRONTIER COMMUNICATIONS OF NEW ENGLAND, INC. 1680 MIDWEST TELEPHONE SERVICE, INC.1518 TELECON COMMUNICATIONS CORPORATION 1682 STATE OF MARYLAND (DEPT OF GEN.SERVICES)1520 TEL-SPAN COMMUNICATIONS, INC. 1685 INTL.800 TELECOM dba TELECALL LONG DIST.1522 TELAPEX LONG DISTANCE, INC. 1686 AT&T CANADA LONG DISTANCE SERVICES CO.1532 WORLDCOM, INC. 1689 TELEMANAGEMENT CONSULTANTS CORPORATION1533 LONG DISTANCE DISCOUNT, INC. 1690 CORPORATE TELEMANAGEMENT GROUP1536 LONG DISTANCE MANAGEMENT 1692 CARD ESTABLISHMENT SERVICES1539 ALLNET [LEXITEL/LDX] 1694 FRONTIER LONG DISTANCE AMERICA1544 UNITED TELEPHONE CO. dba TELAMERICA L.D. 1696 JC PENNEY BUSINESS SERVICES1545 KEYSTONE TELECOM, INC. 1701 WESTERN TELECOMMUNICATION, INC. (WTCI)1546 WORLDCOM, INC. 1703 KEYSTONE TELECOMMUNICATIONS INC.1547 TELEFONICA LARGA DISTANCIA DE P.R., INC. 1704 ARTHUR ANDERSON & CO.1549 NATIONAL BRANDS, INC. 1706 ICON COMMUNICATIONS CORPORATION1550 CENTURY LONG DISTANCE 1707 TELVUE CORPORATION1554 CELLTOLL CORPORATION 1708 LIGHT LINK, INC. dba TAYLOR COMM. GRP.1555 WORLDCOM, INC. 1712 WCS OPERATORS1560 TCI COMMUNICATIONS, INC. . 1716 COMPUSERVE1562 LCI 1717 PASS WORD, INC.1563 LINKUSA CORPORATION 1718 TCG1564 LONG DISTANCE OHIO, INC. 1720 SILVERADO COMMUNICATIONS1565 METRO ONE DIRECT 1722 HI-PLAINS NTS COMMUNICATIONS1567 ADVANCED MKG. SVCS., dba DIAL ANYWHERE 1724 WORLDCOM, INC.1568 US COMM. INC, dba SOUTHWEST L.D.N, INC. 1725 CONSOLIDATED NETWORK, INC.1569 WEST COAST TELECOMMUNICATIONS, INC. 1728 GARDEN STATE LONG DISTANCE TELEPHONE1573 AMERICAN TELECOMMUNICATIONS HOLDING LTD. 1729 TEL AMERICA1581 NORCOMM 1731 TELESCAN, INC.1582 NORCOMM 1732 AT&T COMMUNICATIONS

12



CODE ASSIGNED TO CODE ASSIGNED TO1739 FLAT RATE COMMUNICATIONS 1932 MID-TEL L.D. OF MINOT1745 TELEPHONE ELECTRONICS NETWORK, LTD. 1933 NORTH AMERICAN COMMUNICATIONS, INC.1750 VC TELECOMMUNICATION SYSTEMS 1935 FIRST CHOICE LONG DISTANCE, INC.1754 ADVANTIS 1939 VISTA-UNITED TELECOMMUNICATIONS1755 ADVANTIS 1941 DATA COM1764 ROANOKE TELEPHONE COMPANY 1944 WYNN-HILL NETWORK1768 DIGINET COMMUNICATIONS 1946 WESTINGHOUSE COMMUNICATIONS1769 STATE OF NEW YORK 1947 ITI INCORPORATED1771 TELECOM*USA [MCI] 1955 UNITED COMMUNICATIONS, INC.1772 ADVANTIS 1957 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)1779 PEOPLES PHONE COMPANY 1962 GULF LONG DISTANCE, INC.1780 MATRIX TELECOM 1963 CAPITAL TELECOMMUNICATIONS, INC.1783 VERTELCO SYSTEMS 1964 AMERITEL LONG DISTANCE FOR LESS1784 SUNTEL NETWORK, INC. 1972 DIGITAL NETWORK, INC.1786 WORLDCOM, INC. 1973 TEL-A-SAVE COMMUNICATIONS SYSTEMS, LTD.1791 INFOCOM INTERNATIONAL, INC. 1975 VARTEC NATIONAL, INC.1793 RESPONSE TELCOM, L.P. 1977 TELEPHONE COMMUNICATIONS CORPORATION1798 THE PAY TELEPHONE COMPANY 1978 NETWORK BILLING & COLLECTION, INC. (NBC)1799 SYMTECH COMMUNICATIONS SERVICES 1979 VORTEL COMMUNICATIONS, INC.1801 WORLDCOM, INC. 1980 MIDWEST TELECOM1802 ELECTRIC LIGHTWAVE, INC. 1982 WESTERN TELECOMMUNICATION, INC. (WTCI)1807 SOUTH CAROLINA NETWORK, INC. 1983 STAR TEL OF VICTORIA, INC.1808 EASTERN TELECOM GROUP 1984 STAR TEL TRANSMISSION CO., INC.1809 ENVOY 1986 MCI1811 VARTEC TELECOM, INC. 1991 ACCESS LONG DISTANCE1812 SOUTHLAND CABLEVISION 1992 A.B.E. OF ALABAMA, INC. dba ECONOLINE1816 MID-TEL L.D,. INC. OF WILLISTON 1993 SOUTHWEST UNITED COMMUNICATION, INC.1819 HUB DISTRIBUTING, INC. 1994 TOUCH AMERICA, INC.1820 BIZTEL LTD. 1997 GAS COMPANY OF NEW MEXICO1821 BT NORTH AMERICA, INC. 1998 THE COMMUNIGROUP OF KC1822 PROFESSIONAL NETWORKS MANAGEMENT, INC. 1999 WORLDCOM, INC.1826 MCI 5008 US ONE COMMUNICATIONS CORP.1827 TCS NETWORK SERVICES 5010 PHOENIX NETWORK1828 TENCOM 5011 PHOENIX NETWORK1830 PUBLIC SERVICE COMPANY OF NM 5012 ARRIVA COMMUNICATIONS, INC.1831 EXECULINES OF SACRAMENTO 5013 LANSER TELECOM, INC.1833 BUSINESS TELECOM, INC. 5025 AMERITECH1836 GENERAL SERVICES ADMINISTRATION 5031 ARC NETWORKS1841 FIRST FINANCIAL MANAGEMENT CORP. 5032 VALULINE LONG DISTANCE1846 WORLDCOM, INC. 5035 COUNTY OF MONTGOMERY COMMUNICATIONS DIV.1848 TRESCOM U.S.A, INC. 5036 MERCHANT-LINK, INC.1850 DIGITEL 5037 MERCHANT-LINK, INC.1852 TELECOM*USA [MCI] 5038 MERCHANT LINK, INC.1857 TELECOM*USA [MCI] 5039 MERCHANT LINK, INC.1858 AT&T CANADA LONG DISTANCE SERVICES CO. 5047 NYNEX1860 METRO TELECOMM.SVCS., INC. dba METROCOMM 5048 NYNEX1862 WORLDCOM, INC. 5050 AMERITECH SERVICES1864 TRANSNET 5051 ARKANSAS BLUE CROSS BLUE SHIELD1865 EXPRESS COMMUNICATIONS, INC. 5052 ARKANSAS BLUE CROSS BLUE SHIELD1869 AT&T CANADA LONG DISTANCE SERVICES CO. 5054 USTEL1871 LOYD COMM. dba COMTEL/HOT SPRINGS 5061 BELLSOUTH BUSINESS SYSTEMS1873 ONE STAR LONG DISTANCE 5062 BELLSOUTH BUSINESS SYSTEMS1874 WORLDCOM, INC. 5063 BELLSOUTH BUSINESS SYSTEMS1875 U.S. ORDER 5064 INTERNET, INC.1876 TELECOM*USA [MCI] 5065 INTERNET, INC.1880 ONE CALL COMMUNICATIONS 5067 RCX, INC.1881 COASTAL TELEPHONE COMPANY 5068 APPLIED SIGNAL CORPORATION1882 TUCK DATA COMMUNICATIONS 5070 SALT LAKE TEL-A-SYS. C/O THE TANNER GRP.1890 NORTH COUNTY COMMUNICATIONS CORP. 5071 SALT LAKE TEL-A-SYS. C/O THE TANNER GRP.1891 OPERATOR SERVICE COMPANY 5075 ROCKEFELLER GROUP TELECOMM. SVCS.1895 WORLDCOM, INC. 5079 JC PENNEY BUSINESS SERVICES1897 ITC NETWORKS OF UTAH 5082 UNITED TELEMANAGEMENT SERVICES, INC.1898 SBS/MCI 5083 ENVOY CORPORATION1900 TELECOM*USA [MCI] 5085 UNITED REFINING COMPANY1902 COAST TO COAST TELECOMMUNICATIONS 5089 ENVOY CORPORATION1910 WORLDCOM, INC. 5098 B.P. OIL COMPANY1915 TELE TECH, INC. 5101 WESTINGHOUSE COMMUNICATIONS1918 WORLDCOM, INC. 5102 WESTINGHOUSE COMMUNICATIONS1919 TEL NET INC. 5103 TELEPHONE BILLING SERVICE1921 WORLDCOM, INC. 5104 AAA TELEPHONE & COMMUNICATIONS INC.1930 PILGRIM TELEPHONE INC. 5105 PUBLIC SERVICE COMPANY OF NM

13



CODE ASSIGNED TO CODE ASSIGNED TO5106 NEW YORK LOTTERY 5413 ROCKY MTN. HOSP dba BLUE CROSS OF CO5110 NYNEX 5419 H.G. TELECOM, INC.5111 FIBERNET TELEMANAGEMENT, INC. 5424 INTELLICALL5113 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 5432 EXCEL TELECOMMUNICATIONS, INC.5115 BROOKS FIBER COMMUNICATIONS 5438 LERMER OVERSEAS TELECOMMUNICATIONS, INC.5119 NEXTLINK 5446 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.5121 ONE-2-ONE COMMUNICATIONS 5454 QUESTAR INFOCOMM INCORPORATED5123 U S WEST COMMUNICATIONS 5465 FEDERAL TRANSTEL, INC5128 TMC WORLDWIDE, INC. 5468 MARYLAND STATE GOVERNMENT5131 PACIFIC TELECOM, INC. (PTI) 5475 FIRSTEL5136 COASTAL LONG DISTANCE SERVICES, INC. 5477 CITILINK OF UT, L.L.C.5151 CELLULAR ONE WASHINGTON/BALTIMORE 5478 BELLSOUTH TELECOMMUNICATIONS5163 AMERICAN NORTEL COMM. INC. 5483 IT&E OVERSEAS, INC.5171 BUYPASS CORPORATION 5484 HORIZON TELECOMMUNICATIONS, INC.5173 FIRST DATA RESOURCES, INC. (FST) 5500 ESS VENTURES, INC.5174 SOUTHEAST SWITCH 5507 FONOROLA5175 GROCERS SUPPLY COMPANY, INC. 5511 IT&E OVERSEAS, INC.5180 FIRST NATIONAL BANK OF MARYLAND 5522 IT&E OVERSEAS, INC.5181 FIRST NATIONAL BANK OF MARYLAND 5523 VALUE TEL5182 FIRST NATIONAL BANK OF MARYLAND 5526 POKA LAMBRO TELECOMMUNICATIONS, INC.5183 FIRST NATIONAL BANK OF MARYLAND 5535 LAKEDALE LINK, INC.5184 FIRST NATIONAL BANK OF MARYLAND 5545 FIRST FINANCIAL MANAGEMENT CORP.5185 USA PAGING 5547 TELEFONICA LARGA DISTANCIA DE P.R., INC.5186 GLENS FALLS HOSPITAL 5555 AMERITECH SERVICES5190 RETAIL DATA NETWORKS (RDN) 5556 BAY SPRINGS LONG DISTANCE5191 RETAIL DATA NETWORKS (RDN) 5557 DAKOTA TELECOM, INC. (DTI)5192 RETAIL DATA NETWORKS (RDN) 5559 COOPERATIVE COMMUNICATIONS, INC.5193 RETAIL DATA NETWORKS (RDN) 5560 MELLON BANK N.A.5194 RETAIL DATA NETWORKS (RDN) 5566 IT&E OVERSEAS, INC.5201 WESTINGHOUSE COMMUNICATIONS 5577 NETWORK CARRIER SERVICES5202 WESTINGHOUSE COMMUNICATIONS 5587 MELLON BANK N.A.5210 NYNEX 5588 IT&E OVERSEAS, INC.5213 TEXACO REFINING AND MARKETING, INC. 5599 INTELCOM GROUP (USA), INC.5222 FIRST FINANCIAL MANAGEMENT CORP. 5600 ESCONDIDO TELEPHONE COMPANY5224 ADVANTAGE COMMUNICATIONS GROUP, INC. 5601 MISSOURI LOTTERY5225 TRANSACTION NETWORK SERVICES, INC. 5607 ONE-2-ONE COMMUNICATIONS5226 SUPERTEL COMMUNICATIONS, INC. 5608 THE LONG DISTANCE PARTNERSHIP, L.P.5227 SUPERTEL COMMUNICATIONS, INC. 5609 WHATCOM TELECOMM5228 SUPERTEL COMMUNICATIONS, INC. 5610 LMG TEL, INC5229 SUPERTEL COMMUNICATIONS, INC. 5611 PNG TELECOMMUNICATIONS5236 MELLON BANK N.A. 5615 CAM-NET COMMUNICATIONS NETWORK, INC.5237 COMPUSERVE 5620 TELEHOP COMMUNICATIONS. INC.5238 COMPUSERVE 5623 FEDERAL TRANSTEL, INC5239 COMPUSERVE 5624 MASTERCARD INTERNATIONAL5240 COMPUSERVE 5626 TEL-ONE5247 MASTERCARD INTERNATIONAL 5627 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.5252 COLORADO CITY LINK 5630 TELEGROUP5254 FIRST USA 5648 VMA, INC. dba UNIVERSITY TELEPHONE SERVICES, INC.5267 CMS COMMUNICATIONS 5653 SPECIALIZED TELECOMMUNICATIONS5268 VALU-LINE LONG DISTANCE 5654 MASTERCARD INTERNATIONAL5269 COX COMMUNICATIONS, INC. 5656 CELLULAR ONE WASHINGTON/BALTIMORE5276 BELLSOUTH TELECOMMUNICATIONS 5666 FIRST FINANCIAL MANAGEMENT CORP.5282 CELLULAR ONE WASHINGTON/BALTIMORE 5677 WATS/800 INC.5283 XPEDITE SYSTEMS, INC. 5678 AMERITECH SERVICES5285 THE OHIO STATE UNIVERSITY 5679 NORTH PITTSBURGH TELEPHONE COMPANY5293 HORIZON CELLULAR TELCO 5682 METROTIME COMMUNICATIONS5299 CONNECTNET 5693 DELUXE DATA SYSTEMS5300 AT&T BELL LABORATORIES 5698 MELLON BANK N.A.5315 FIRST HAWAIIAN BANK 5700 PHOENIX NETWORK5323 CHARITON VALLEY LONG DISTANCE CORPORATION 5708 ARTHUR ANDERSON & CO.5325 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 5717 NETWORK ONE, INC.5326 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 5721 VOICE TECHNOLOGY CORPORATION5327 IEC COMMUNICATIONS, INC. 5735 FTI COMMUNICATIONS5340 DELUXE DATA SYSTEMS 5747 MINNESOTA STATE RELAY - TRIAD BOARD5347 MASTERCARD INTERNATIONAL 5750 CORESTATES FINANCIAL CORP5353 US AIR 5751 CORESTATES FINANCIAL CORP5359 DELUXE DATA SYSTEMS 5752 CORESTATES FINANCIAL CORP5365 EMI COMMUNICATIONS CORP. 5754 ADVANTIS5368 BUDGET CALL LONG DISTANCE 5757 CELLULAR ONE WASHINGTON/BALTIMORE5377 SINCLAIR OIL CORP 5759 VALULINE LONG DISTANCE5379 E-SCRIPT L.L.C. 5766 ETSC5390 ONE-2-ONE COMMUNICATIONS 5768 BRINDLEE MOUNTAIN TELEPHONE COMPANY5391 FIFTH THIRD BANK 5769 REAL CONNECT5395 HARMONIC SYSTEMS INCORPORATED 5772 ADVANTIS5396 HARMONIC SYSTEMS INCORPORATED 5775 BMG5397 HARMONIC SYSTEMS INCORPORATED 5777 FEDERAL TRANSTEL, INC5398 HARMONIC SYSTEMS INCORPORATED 5778 ARCO PAYPOINT5399 HARMONIC SYSTEMS INCORPORATED 5783 ARTHUR ANDERSON & CO.

14



CODE ASSIGNED TO5795 CAPROCK COMMUNICATIONS5800 ENVOY CORPORATION5801 AVIRNEX COMMUNICATIONS GROUP5813 VALU-LINE OF LOUISIANA, INC.5819 CABLEVISION LIGHTPATH, INC.5825 TRANSACTION NETWORK SERVICES, INC.5829 TRANSACTION NETWORK SERVICES, INC.5832 CROSSCHECK5834 CTS TELCOM OF FLORIDA5836 BRANSON TELEPHONE5842 US WEST INTERPRISE AMERICA, INC.5854 ONEIDA COUNTY TELEPHONE LONG DISTANCE5858 CELLULAR ONE WASHINGTON/BALTIMORE5867 EQUAL ACCESS OF WASHINGTON5874 US COMMUNICATIONS,INC.5875 U.S. COMMUNICATIONS, INC.5876 U.S. COMMUNICATIONS, INC.5877 U.S. COMMUNICATIONS, INC.5879 TRANSACTION NETWORK SERVICES, INC.5882 THE TELEPHONE CONNECTION OF L.A., INC.5885 VIATEL, INC.5888 FIRST FINANCIAL MANAGEMENT CORP.5893 CONCORD TELEPHONE LONG DISTANCE (CT LONG DISTANCE)5894 OKLAHOMA LONG DISTANCE5895 METROTEL COMMUNICATIONS5945 NEW TIMES, INC.5950 FEDERAL TRANSTEL, INC5953 LYNK SYSTEMS, INC.5959 FEDERAL TRANSTEL, INC5969 FONES WEST DIGITAL SYSTEMS5978 WESTEL TELECOMMUNICATIONS LTD.5999 DELUXE DATA SYSTEMS

15

TABLE 3LIST OF FGB CIC CODE ASSIGNMENTS

SORTED BY ENTITY(AS OF MARCH 31, 1997)

CODE ASSIGNED TO CODE ASSIGNED TO5104 AAA TELEPHONE & COMMUNICATIONS INC. 0004 ATX TELECOMMUNICATIONS SERVICES1234 ACC LONG DISTANCE CORPORATION 5300 AT&T BELL LABORATORIES1345 ACC LONG DISTANCE CORPORATION 1869 AT&T CANADA LONG DISTANCE SERVICES CO.1991 ACCESS LONG DISTANCE 1858 AT&T CANADA LONG DISTANCE SERVICES CO.0937 ACCESS LONG DISTANCE 1686 AT&T CANADA LONG DISTANCE SERVICES CO.0013 ACCESS SERVICES dba PACIFIC NW TELECOM 1732 AT&T COMMUNICATIONS0551 ACCESS-PLUS, INC. 1288 AT&T COMMUNICATIONS0282 ACTION TELCOM CO. 0988 AT&T EASYLINK SERVICES1506 ADP AUTONET 0375 AT&T EASYLINK SERVICES0260 ADVANCED COMMUNICATIONS SYSTEMS INC. 1314 AT&T WIRELESS SERVICES, INC.1567 ADVANCED MKG. SVCS., dba DIAL ANYWHERE 0302 AUSTIN BESTLINE0927 ADVANCED RADIO COMMUNICATIONS SYSTEMS 1235 AUTOMATED TELEPHONE5224 ADVANTAGE COMMUNICATIONS GROUP, INC. 5801 AVIRNEX COMMUNICATIONS GROUP5754 ADVANTIS 1992 A.B.E. OF ALABAMA, INC. dba ECONOLINE1754 ADVANTIS 0956 BANK OF AMERICA, NT & SA5772 ADVANTIS 5556 BAY SPRINGS LONG DISTANCE1772 ADVANTIS 0190 BCS COMMUNICATIONS1755 ADVANTIS 1243 BEEHIVE TELEPHONE CO., INC.1436 ALARM CENTER, INC. 0652 BELL ATLANTIC COMMUNICATIONS, INC.0886 ALIANT SYSTEMS, INC. 0272 BELL ATLANTIC COMMUNICATIONS, INC.0579 ALIANT SYSTEMS, INC. 5062 BELLSOUTH BUSINESS SYSTEMS1075 ALLCOMM LONG DISTANCE, INC. 5063 BELLSOUTH BUSINESS SYSTEMS1148 ALLEGAN CELLULAR L.P. 5061 BELLSOUTH BUSINESS SYSTEMS1044 ALLNET COMM. SVC. INC. [LDX,LEXITEL] 5478 BELLSOUTH TELECOMMUNICATIONS1444 ALLNET COMM. SVC. INC. [LDX,LEXITEL] 5276 BELLSOUTH TELECOMMUNICATIONS1539 ALLNET [LEXITEL/LDX] 0950 BENEFICIAL DATA PROCESSING CORP.1066 ALLNET [LEXITEL/LDX] 0867 BITTEL TELECOMMUNICATIONS CORP.1061 AMERICAN COMMUNICATIONS NETWORK 1820 BIZTEL LTD.1645 AMERICAN COMMUNICATIONS TECHNOLOGY, INC. 0870 BLUE RIDGE TELEPHONE1411 AMERICAN EXPRESS TRAVEL RELATED SVCS. 5775 BMG1251 AMERICAN INT'L. TELECOMMUNICATIONS 1037 BN1 TELECOMMUNICATIONS, INC.0028 AMERICAN LONG DISTANCE CORPORATION 5836 BRANSON TELEPHONE1241 AMERICAN LONG LINES 5768 BRINDLEE MOUNTAIN TELEPHONE COMPANY0773 AMERICAN L.D. OPERATOR SERVICE CO. 5115 BROOKS FIBER COMMUNICATIONS1437 AMERICAN NATIONAL TELCOM 1821 BT NORTH AMERICA, INC.0370 AMERICAN NETWORK EXCHANGE INC. 5368 BUDGET CALL LONG DISTANCE5163 AMERICAN NORTEL COMM. INC. 1833 BUSINESS TELECOM, INC.0322 AMERICAN SHARECOM, INC. 5171 BUYPASS CORPORATION1231 AMERICAN SHARECOM, INC. 1281 BUYPASS CORPORATION1400 AMERICAN SHARECOM, INC. 5098 B.P. OIL COMPANY0663 AMERICAN TELCO NETWORK SERVICES INC. 0223 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX)0366 AMERICAN TELCO, INC. 0839 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX)1573 AMERICAN TELECOMMUNICATIONS HOLDING LTD. 0566 CABLE & WIRELESS COMMUNICATIONS, INC. (TDX)1362 AMERISYSTEMS, INC. 5819 CABLEVISION LIGHTPATH, INC.1039 AMERISYSTEMS, INC. 1287 CALIFORNIA STATE LOTTERY5025 AMERITECH 1344 CALL AMERICA BUSINESS COMM. CORP.5050 AMERITECH SERVICES 1351 CALL AMERICA OF RIVERSIDE5678 AMERITECH SERVICES 0410 CALL AMERICA/PALM DESERT5555 AMERITECH SERVICES 1291 CALL SAVERS, INC.0794 AMERITEL 1091 CALL TECHNOLOGY CORP. OF PHILADELPHIA1964 AMERITEL LONG DISTANCE FOR LESS 1219 CALL USA CORP.0959 AMRIGON ENTERPRISES, INC. 0487 CAMBRIDGE COMMUNICATIONS1514 ANNE ARUNDEL COUNTY 1670 CAMERON LONG DISTANCE1613 AN-SER SERVICES (FROMM SERVICES, INC.) 5615 CAM-NET COMMUNICATIONS NETWORK, INC.5068 APPLIED SIGNAL CORPORATION 1046 CAM-NET, INC.5031 ARC NETWORKS 1425 CAPITAL NETWORK SYSTEMS INC.0639 ARCADA COMMUNICATIONS 0221 CAPITAL TELECOMMUNICATIONS, INC.5778 ARCO PAYPOINT 1963 CAPITAL TELECOMMUNICATIONS, INC.5051 ARKANSAS BLUE CROSS BLUE SHIELD 5795 CAPROCK COMMUNICATIONS5052 ARKANSAS BLUE CROSS BLUE SHIELD 1292 CARD ESTABLISHMENT SERVICES5012 ARRIVA COMMUNICATIONS, INC. 1692 CARD ESTABLISHMENT SERVICES1704 ARTHUR ANDERSON & CO. 1492 CARD ESTABLISHMENT SERVICES5708 ARTHUR ANDERSON & CO. 1383 CARIBBEAN TELEPHONE & TELEGRAPH, INC.5783 ARTHUR ANDERSON & CO. 0788 C-COM0139 ASCENDING TECHNOLOGIES 1554 CELLTOLL CORPORATION1419 ASSOCIATED GROCERS, INC. 5757 CELLULAR ONE WASHINGTON/BALTIMORE1279 ASSOCIATED TELENET INC./ A CTI COMPANY 5151 CELLULAR ONE WASHINGTON/BALTIMORE1125 ATLANTIC TELEPHONE COMPANY, INC. 5656 CELLULAR ONE WASHINGTON/BALTIMORE0913 ATS COMMUNICATIONS, INC. 5858 CELLULAR ONE WASHINGTON/BALTIMORE

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CODE ASSIGNED TO CODE ASSIGNED TO5282 CELLULAR ONE WASHINGTON/BALTIMORE 5340 DELUXE DATA SYSTEMS1399 CENTRAL NEW YORK TALK-TRANSIT 1326 DIAL AMERICA, INC.1550 CENTURY LONG DISTANCE 1350 DIAL-NET, INC.0914 CENTURY TELECOMMUNICATIONS, INC. 1250 DIAL-NET, INC.0505 CENTURY TELECOMMUNICATIONS, INC. 1768 DIGINET COMMUNICATIONS0909 CHADWICK TELEPHONE 0853 DIGITAL NETWORK, INC.5323 CHARITON VALLEY LONG DISTANCE CORPORATION 1972 DIGITAL NETWORK, INC.1285 CHECKRITE 1586 DIGITAL NETWORK, INC.1286 CINCINNATI BELL LONG DISTANCE 0071 DIGITAL NETWORK, INC.1293 CINCINNATI BELL LONG DISTANCE 1850 DIGITEL0654 CINCINNATI BELL LONG DISTANCE 0320 DIGITEL1614 CINCINNATI BELL LONG DISTANCE 1064 DNS, INC.5477 CITILINK OF UT, L.L.C. 1430 DOMINO'S PIZZA INC.0774 CITYNET COMMUNICATIONS, INC. 1808 EASTERN TELECOM GROUP5267 CMS COMMUNICATIONS 0136 EASTERN TELECOM INTERNATIONAL1629 COACHELLA VALLEY COMM., dba INTEG. OPER. SVCS. 1054 EASTERN TELEPHONE SYSTEMS, INC.1902 COAST TO COAST TELECOMMUNICATIONS 0356 EASTMAN KODAK COMPANY0966 COASTAL AUTOMATED COMMUNICATIONS CORP. 0327 ECI COMMUNICATIONS5136 COASTAL LONG DISTANCE SERVICES, INC. 0497 ECON-A-CALL INC. OF HAYS1881 COASTAL TELEPHONE COMPANY 1325 ECONO CALL LONG DISTANCE SERVICES0661 COASTAL TELEPHONE COMPANY 0634 ECONO-LINE MIDLAND1661 COASTAL TELEPHONE CO. 0373 ECONO-LINE WACO5252 COLORADO CITY LINK 0060 ECONOMY TELEPHONE, INC.1619 COLORADO RIVER COMMUNICATIONS 1273 EDS0306 COLORADO RIVER COMMUNICATIONS 1802 ELECTRIC LIGHTWAVE, INC.1611 COMCENTRAL, INC. 5365 EMI COMMUNICATIONS CORP.1602 COMLINK USA 1809 ENVOY1336 COMMONWEALTH LONG DISTANCE CO. 5083 ENVOY CORPORATION0339 COMMUNICATION CABLE LAYING CO., INC. 5089 ENVOY CORPORATION0349 COMMUNICATION CABLE LAYING CO., INC. 5800 ENVOY CORPORATION0675 COMMUNICATION SERVICES OF COLORADO 5867 EQUAL ACCESS OF WASHINGTON1502 COMMUNICATION TELESYSTEMS INTL. (CTS) 1342 EQUITABLE GAS1667 COMMUNICATIONS INC., dba ECI 5600 ESCONDIDO TELEPHONE COMPANY1073 COMMUNICATIONS OPTIONS, INC. 0441 ESCONDIDO TELEPHONE COMPANY1484 COMMUNITY LONG DISTANCE INC. 5379 E-SCRIPT L.L.C.1716 COMPUSERVE 0592 ESS VENTURES, INC.5238 COMPUSERVE 5500 ESS VENTURES, INC.5237 COMPUSERVE 5766 ETSC5239 COMPUSERVE 0048 ETSC5240 COMPUSERVE 0752 EXCEL TELECOMMUNICATIONS, INC.0266 COMSYSTEMS NETWORK SERVICES 5432 EXCEL TELECOMMUNICATIONS, INC.5893 CONCORD TELEPHONE LONG DISTANCE (CT LONG DISTANCE) 0486 EXECULINES OF SACRAMENTO5299 CONNECTNET 0511 EXECULINES OF SACRAMENTO1319 CONQUEST 1831 EXECULINES OF SACRAMENTO1257 CONQUEST 1633 EXECULINES OF SACRAMENTO, INC.1239 CONSOLIDATED COMMUNICATIONS CORPORATION 0202 EXECULINES OF THE NORTHWEST, INC.1725 CONSOLIDATED NETWORK, INC. 0705 EXECULINES OF THE NORTHWEST, INC.1646 CONTACT AMERICA, INC. 1865 EXPRESS COMMUNICATIONS, INC.5559 COOPERATIVE COMMUNICATIONS, INC. 1493 EXTELCOM dba EXPRESS TEL5752 CORESTATES FINANCIAL CORP 1429 EXTELCOM dba EXPRESS TEL5750 CORESTATES FINANCIAL CORP 1435 EXTELCOM dba EXPRESS TEL5751 CORESTATES FINANCIAL CORP 1494 EXTELCOM dba EXPRESS TEL1690 CORPORATE TELEMANAGEMENT GROUP 1447 FAXNET CORPORATION0470 COSHOCTON L.D.S. 0922 FEB CORPORATION5035 COUNTY OF MONTGOMERY COMMUNICATIONS DIV. 5950 FEDERAL TRANSTEL, INC5269 COX COMMUNICATIONS, INC. 5959 FEDERAL TRANSTEL, INC5832 CROSSCHECK 5777 FEDERAL TRANSTEL, INC5834 CTS TELCOM OF FLORIDA 5465 FEDERAL TRANSTEL, INC1203 CYPRESS TELECOMMUNICATIONS CORP. (CYTEL) 5623 FEDERAL TRANSTEL, INC1615 C.P.I. dba GULF STATES COMMUNICATIONS 0679 FEIST LONG DISTANCE1361 DAKOTA COOPERATIVE TELECOMM., INC. 0475 FIBERFONE OF FLORIDA, INC.5557 DAKOTA TELECOM, INC. (DTI) 0825 FIBERLINE NETWORK COMMUNICATIONS L.P.1941 DATA COM 5111 FIBERNET TELEMANAGEMENT, INC.1233 DELTACOM LONG DISTANCE SERVICES 5391 FIFTH THIRD BANK1240 DELTACOM, INC. 0277 FIRST CHOICE LONG DISTANCE, INC.5359 DELUXE DATA SYSTEMS 1935 FIRST CHOICE LONG DISTANCE, INC.5999 DELUXE DATA SYSTEMS 1472 FIRST CHOICE LONG DISTANCE, INC.0693 DELUXE DATA SYSTEMS 1324 FIRST COMMUNICATIONS, INC. (FDR)5693 DELUXE DATA SYSTEMS 5173 FIRST DATA RESOURCES, INC. (FST)

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CODE ASSIGNED TO CODE ASSIGNED TO1337 FIRST DATA RESOURCES, INC. (FST) 0402 INTEGRETEL, INC.1841 FIRST FINANCIAL MANAGEMENT CORP. 1465 INTELCO5222 FIRST FINANCIAL MANAGEMENT CORP. 5599 INTELCOM GROUP (USA), INC.5888 FIRST FINANCIAL MANAGEMENT CORP. 1463 INTELENET COMMISSION5545 FIRST FINANCIAL MANAGEMENT CORP. 5424 INTELLICALL5666 FIRST FINANCIAL MANAGEMENT CORP. 0616 INTER COMM. MANAGEMENT NETWORK5315 FIRST HAWAIIAN BANK 0025 INTER CONTINENTAL TELEPHONE5184 FIRST NATIONAL BANK OF MARYLAND 0393 INTERMEDIA COMMUNICATIONS, INC.5183 FIRST NATIONAL BANK OF MARYLAND 0664 INTERMOUNTAIN DIGITAL NETWORK5182 FIRST NATIONAL BANK OF MARYLAND 1076 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.5181 FIRST NATIONAL BANK OF MARYLAND 0596 INTERNET, INC.5180 FIRST NATIONAL BANK OF MARYLAND 5064 INTERNET, INC.1206 FIRST OF AMERICA BANK SE MICHIGAN N.A. 5065 INTERNET, INC.5254 FIRST USA 1685 INTL.800 TELECOM dba TELECALL LONG DIST.5475 FIRSTEL 1283 IOWA COMMUNICATIONS NETWORK1739 FLAT RATE COMMUNICATIONS 1225 IOWA NETWORK SERVICES, INC.0197 FLEABUSTERS 0065 ISACOMM, INC. [SPRINT]1096 FLEX COMMUNICATIONS SYSTEM 1478 ITC NETWORKS OF UTAH1010 FLEX COMMUNICATIONS SYSTEM 1897 ITC NETWORKS OF UTAH5969 FONES WEST DIGITAL SYSTEMS 1468 ITC NETWORKS OF UTAH1377 FONES WEST DIGITAL SYSTEMS 1947 ITI INCORPORATED0985 FONOROLA 5588 IT&E OVERSEAS, INC.5507 FONOROLA 5566 IT&E OVERSEAS, INC.0637 FOX COMMUNICATIONS CORP. 5511 IT&E OVERSEAS, INC.0211 FRONTIER COMMUNICATIONS INTERNATIONAL, INC. 5483 IT&E OVERSEAS, INC.1003 FRONTIER COMMUNICATIONS INTERNATIONAL, INC. 5522 IT&E OVERSEAS, INC.1515 FRONTIER COMMUNICATIONS OF NEW ENGLAND, INC. 1696 JC PENNEY BUSINESS SERVICES1058 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 5079 JC PENNEY BUSINESS SERVICES1500 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 0062 KENTUCKY TELEPHONE CORP.1232 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 1703 KEYSTONE TELECOMMUNICATIONS INC.0086 FRONTIER COMMUNICATIONS OF THE MID ATLANTIC, INC. 1545 KEYSTONE TELECOM, INC.1694 FRONTIER LONG DISTANCE AMERICA 0989 KRB TELECOM5735 FTI COMMUNICATIONS 0218 KRISTIN ENTERPRISES dba TEL-CENTRAL1728 GARDEN STATE LONG DISTANCE TELEPHONE 0552 LAKE STATES COMMUNICATIONS1997 GAS COMPANY OF NEW MEXICO 5535 LAKEDALE LINK, INC.1195 GASCARD 5013 LANSER TELECOM, INC.1077 GENERAL COMMUNICATION, INC. 1562 LCI1434 GENERAL ELECTRIC INFORMATION SERVICES 1452 LCI INTERNATIONAL1836 GENERAL SERVICES ADMINISTRATION 1432 LCI INTERNATIONAL5186 GLENS FALLS HOSPITAL 0537 LCI INTERNATIONAL1295 GLENS FALLS LONG DISTANCE SERVICE 1451 LCI INTERNATIONAL0469 GMW COMPANY 0358 LCI INTERNATIONAL TELECOM CORP.5175 GROCERS SUPPLY COMPANY, INC. 0561 LCT LONG DISTANCE1583 GST NET, INC. 0684 LCT LONG DISTANCE0760 GTE TELECOM 1628 LDDS1962 GULF LONG DISTANCE, INC. 1299 LECNET0089 HARBOR BAY TELECOMMUNICATIONS 1507 LEE HARBOR HOMES5399 HARMONIC SYSTEMS INCORPORATED 5438 LERMER OVERSEAS TELECOMMUNICATIONS, INC.5398 HARMONIC SYSTEMS INCORPORATED 1708 LIGHT LINK, INC. dba TAYLOR COMM. GRP.5397 HARMONIC SYSTEMS INCORPORATED 1563 LINKUSA CORPORATION5396 HARMONIC SYSTEMS INCORPORATED 1012 LITEL/LCI INTERNATIONAL5395 HARMONIC SYSTEMS INCORPORATED 1236 LITEL/LCI INTERNATIONAL0015 HAWAIIAN TELEPHONE COMPANY 1253 LITEL/LCI INTERNATIONAL0049 HEDGES & ASSOCIATES 5610 LMG TEL, INC1722 HI-PLAINS NTS COMMUNICATIONS 0035 LONG DISTANCE AMERICA0965 HOGAN COMMUNICATIONS 0607 LONG DISTANCE COMMUNICATIONS5293 HORIZON CELLULAR TELCO 1533 LONG DISTANCE DISCOUNT, INC.5484 HORIZON TELECOMMUNICATIONS, INC. 1536 LONG DISTANCE MANAGEMENT1819 HUB DISTRIBUTING, INC. 1382 LONG DISTANCE MANAGEMENT, INC.5419 H.G. TELECOM, INC. 1631 LONG DISTANCE OF MICHIGAN1426 IBM 1564 LONG DISTANCE OHIO, INC.1706 ICON COMMUNICATIONS CORPORATION 1036 LONG DISTANCE SAVERS5327 IEC COMMUNICATIONS, INC. 1318 LONG DISTANCE SAVERS1141 IFC COMMUNICATIONS 1213 LONG DISTANCE TELEPHONE SAVERS0527 INDEPENDENCE TELEPHONE CO. 1252 LONG DISTANCE/USA [SPRINT]1483 INDEPENDENT LONG DISTANCE 1871 LOYD COMM. dba COMTEL/HOT SPRINGS1460 INDEPENDENT NETWORK SERVICES 5953 LYNK SYSTEMS, INC.1791 INFOCOM INTERNATIONAL, INC. 0931 L.D. NETWORK, INC.1510 INNOVATIVE COMMUNICATIONS, INC. 0005 MACY'S OF CALIFORNIA

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CODE ASSIGNED TO CODE ASSIGNED TO1094 MAG CARD 0017 NCHE TELECOMMUNICATIONS NETWORK, INC.0357 MANITOWOC LONG DISTANCE SERVICE 1098 NETECH COMM., A US WEST COMPANY1014 MARATHON COMMUNICATIONS 1026 NET-TEL CORPORATION5468 MARYLAND STATE GOVERNMENT 1978 NETWORK BILLING & COLLECTION, INC. (NBC)5624 MASTERCARD INTERNATIONAL 5577 NETWORK CARRIER SERVICES5247 MASTERCARD INTERNATIONAL 0765 NETWORK LONG DISTANCE5347 MASTERCARD INTERNATIONAL 5717 NETWORK ONE, INC.5654 MASTERCARD INTERNATIONAL 5945 NEW TIMES, INC.0624 MASTERCARD INTERNATIONAL 5106 NEW YORK LOTTERY1780 MATRIX TELECOM 5119 NEXTLINK1183 MCI 1581 NORCOMM1222 MCI 1582 NORCOMM1188 MCI 1933 NORTH AMERICAN COMMUNICATIONS, INC.1122 MCI 1890 NORTH COUNTY COMMUNICATIONS CORP.1133 MCI 5679 NORTH PITTSBURGH TELEPHONE COMPANY1986 MCI 1491 NORTHERN ARIZONA COMMUNICATIONS CORP.1826 MCI 1332 NORTHLAND TELEPHONE SYSTEMS LTD.1022 MCI 0638 NORTHWEST TELECOM, LTD.0888 MCI 0908 NTC, INC.1622 MEDE AMERICA 0687 NTS COMMUNICATIONS, INC.5587 MELLON BANK N.A. 0698 NYNEX5236 MELLON BANK N.A. 5047 NYNEX5560 MELLON BANK N.A. 5048 NYNEX0761 MELLON BANK N.A. 5210 NYNEX5698 MELLON BANK N.A. 5110 NYNEX5038 MERCHANT LINK, INC. 0805 OCI5039 MERCHANT LINK, INC. 0658 OCI1655 MERCHANT-LINK, INC. 1359 OFF CAMPUS COMMUNICATIONS5037 MERCHANT-LINK, INC. 1644 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.5036 MERCHANT-LINK, INC. 5446 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.1565 METRO ONE DIRECT 5627 OHIO DEPARTMENT OF ADMINISTRATIVE SVCS.1860 METRO TELECOMM.SVCS., INC. dba METROCOMM 5894 OKLAHOMA LONG DISTANCE1635 METRO TELEPHONE INC. 1391 OMNICALL COMMUNICATIONS CORPORATION5895 METROTEL COMMUNICATIONS 1226 ONE CALL COMMUNICATIONS5682 METROTIME COMMUNICATIONS 1880 ONE CALL COMMUNICATIONS1440 MFS INTELENET, INC. 1873 ONE STAR LONG DISTANCE1648 MID MCND dba MIDCOM COMMUNICATIONS, INC. 5390 ONE-2-ONE COMMUNICATIONS1621 MID TNC dba MIDCOM COMMUNICATIONS, INC. 5607 ONE-2-ONE COMMUNICATIONS0996 MIDCO COMMUNICATIONS 5121 ONE-2-ONE COMMUNICATIONS0338 MIDCO COMMUNICATIONS 0390 ONE-2-ONE COMMUNICATIONS0558 MIDCOM OF ARIZONA, INC. 5854 ONEIDA COUNTY TELEPHONE LONG DISTANCE0519 MIDCOM, INC. 1891 OPERATOR SERVICE COMPANY1816 MID-TEL L.D,. INC. OF WILLISTON 0695 OPTICALL COMMUNICATIONS SERVICES1932 MID-TEL L.D. OF MINOT 1651 O.L.C. COMPANY1980 MIDWEST TELECOM 0572 PAC TEL PAGING, A PACIFIC TELESIS CO.1680 MIDWEST TELEPHONE SERVICE, INC. 0757 PACE LONG DISTANCE SERVICE0264 MIIC dba POLARIS TELCOM 0297 PACIFIC GATEWAY EXCHANGE5747 MINNESOTA STATE RELAY - TRIAD BOARD 5131 PACIFIC TELECOM, INC. (PTI)5601 MISSOURI LOTTERY 1099 PAC-WEST TELECOMM, INC. dba AMERICALL1392 MOBIL OIL CREDIT CORP. 1262 PAC-WEST TELECOMM, INC. dba AMERICALL0608 MODULAR DATA, INC. 1261 PAC-WEST TELECOMM, INC. dba AMERICALL0517 MONTANA LONG DISTANCE, INC. 1717 PASS WORD, INC.1305 MOTOROLA INC. 1412 PENN TELECOM, INC.0912 MRC TELECOMMUNICATIONS, INC. 1216 PENNY FONE1674 MSI COMMUNICATIONS, INC. 1779 PEOPLES PHONE COMPANY1379 MSI COMMUNICATIONS, INC. 1227 PEOPLES TELEPHONE COMPANY, INC.0806 NACT 0490 PHOENIX COMMUNICATIONS GROUP, INC.1549 NATIONAL BRANDS, INC. 5011 PHOENIX NETWORK1632 NATIONAL DATA CORPORATION 0420 PHOENIX NETWORK0861 NATIONAL PAYPHONE SUPPLY dba RATE SAVER 5010 PHOENIX NETWORK0657 NATIONAL TELECOM. OF FLORIDA 5700 PHOENIX NETWORK0067 NATIONAL TELEPHONE COMMUNICATIONS, INC. 0244 PHOENIX NETWORK0746 NATIONAL TELEPHONE EXCHANGE (PA) 0714 PHONELINK, INC.1341 NATIONAL TELE-SAV, INC. 1930 PILGRIM TELEPHONE INC.1623 NATIONAL TELESERVICE 0905 PIZZA HUT, INC.1401 NATIONAL TELESERVICE 5611 PNG TELECOMMUNICATIONS0627 NATIONWIDE EMERGENCY TELECOMM. SYSTEM 5526 POKA LAMBRO TELECOMMUNICATIONS, INC.0057 NATIONWIDE LONG DISTANCE, INC. 1477 POPP TELECOM1072 NBD BANK, NA 1822 PROFESSIONAL NETWORKS MANAGEMENT, INC.

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CODE ASSIGNED TO CODE ASSIGNED TO0045 PSA, INC. 1245 TACONIC LONG DISTANCE SERVICE, CORP.1249 PSP MARKETING GROUP, INC. 0110 TANDEM ACCESS FOR DATABASE QUERY1830 PUBLIC SERVICE COMPANY OF NM 0214 TCA COMMUNICATIONS5105 PUBLIC SERVICE COMPANY OF NM 0093 TCA COMMUNICATIONS0740 PUBLIC SWITCH CORP. 1718 TCG1676 PUGET SOUND BANK 1560 TCI COMMUNICATIONS, INC. .5454 QUESTAR INFOCOMM INCORPORATED 1827 TCS NETWORK SERVICES5067 RCX, INC. 1178 TEAM ELECTRONICS5769 REAL CONNECT 0709 TEL AMERICA1662 RESOURCE TECHNOLOGY 1729 TEL AMERICA1793 RESPONSE TELCOM, L.P. 0700 TEL AMERICA5194 RETAIL DATA NETWORKS (RDN) 1919 TEL NET INC.5193 RETAIL DATA NETWORKS (RDN) 0378 TEL SERV5192 RETAIL DATA NETWORKS (RDN) 1007 TELAMARKETING COMMUNICATIONS, INC.5191 RETAIL DATA NETWORKS (RDN) 1522 TELAPEX LONG DISTANCE, INC.5190 RETAIL DATA NETWORKS (RDN) 1973 TEL-A-SAVE COMMUNICATIONS SYSTEMS, LTD.1764 ROANOKE TELEPHONE COMPANY 0083 TELCO0521 ROANOKE & BOTETOURT TELEPHONE CO. 0699 TEL-COM, INC.5075 ROCKEFELLER GROUP TELECOMM. SVCS. 1915 TELE TECH, INC.5413 ROCKY MTN. HOSP dba BLUE CROSS OF CO 0529 TELECOM WEST0618 RSL COM U.S.A. 0340 TELECOMM. TECHNOLOGIES, INC. (TEL-TECH)0642 R,D,&J COMMUNICATIONS MGMT., INC. 1476 TELECOMPUTE CORPORATION5070 SALT LAKE TEL-A-SYS. C/O THE TANNER GRP. 0220 TELECOM*USA [MCI]5071 SALT LAKE TEL-A-SYS. C/O THE TANNER GRP. 1900 TELECOM*USA [MCI]1591 SANTA FE RAILWAY 0832 TELECOM*USA [MCI]1604 SB COMMUNICATIONS, INC. 1224 TELECOM*USA [MCI]1898 SBS/MCI 1771 TELECOM*USA [MCI]1088 SBS/MCI 0835 TELECOM*USA [MCI]1018 SHARED USE NETWORK 1876 TELECOM*USA [MCI]0207 SHENANDOAH LONG DISTANCE COMPANY 1852 TELECOM*USA [MCI]1720 SILVERADO COMMUNICATIONS 1857 TELECOM*USA [MCI]5377 SINCLAIR OIL CORP 1092 TELECOM*USA [MCI]1641 SOURIS RIVER TELECOMMUNICATIONS COMPANY 1087 TELECOM*USA [MCI]1807 SOUTH CAROLINA NETWORK, INC. 1321 TELECOM*USA [MCI]5174 SOUTHEAST SWITCH 1518 TELECON COMMUNICATIONS CORPORATION1812 SOUTHLAND CABLEVISION 0522 TELEFIND CORPORATION1993 SOUTHWEST UNITED COMMUNICATION, INC. 5547 TELEFONICA LARGA DISTANCIA DE P.R., INC.0056 SP TELECOM 1547 TELEFONICA LARGA DISTANCIA DE P.R., INC.5653 SPECIALIZED TELECOMMUNICATIONS 5630 TELEGROUP1333 SPRINT 5620 TELEHOP COMMUNICATIONS. INC.0872 SPRINT 0887 TELEMANAGEMENT CONSULTANTS CORPORATION1033 SPRINT 1689 TELEMANAGEMENT CONSULTANTS CORPORATION1177 SPRINT 1620 TELEMONEY SERVICES, A FIRST DATA CORPORATION0777 SPRINT 0759 TELENET COMM. CORP., (SPRINT)1352 STANDARD TELCOM, INC. 0499 TELEPHONE ASSOC. dba THIEF RIVER FALLLS LD1215 STAR TEL OF ABILENE 0837 TELEPHONE ASSOC. LONG DISTANCE SVCS.0787 STAR TEL OF ABILENE 0829 TELEPHONE ASSOC. LONG DISTANCE SVCS.1983 STAR TEL OF VICTORIA, INC. 5103 TELEPHONE BILLING SERVICE1984 STAR TEL TRANSMISSION CO., INC. 1977 TELEPHONE COMMUNICATIONS CORPORATION1439 STAR TEL, INC. 1673 TELEPHONE CONNECTIONS, INC.1313 STAR TEL, INC. 1745 TELEPHONE ELECTRONICS NETWORK, LTD.0210 STARLINE, INC. 0899 TELEPHONE EXPRESS0480 STAT COMMUNICATIONS 0191 TELEPHONE SUPPORT SYSTEMS, INC.0762 STATE OF CALIFORNIA - CALNET 0961 TELEPHONE SYSTEMS OF GEORGIA5113 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 1149 TELEPHONE TOWNHALL MEETINGS, INC.5325 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 1731 TELESCAN, INC.5326 STATE OF CAL. HEALTH AND WELFARE AGENCY DATA CENTER 0380 TELESERV CORPORATION1682 STATE OF MARYLAND (DEPT OF GEN.SERVICES) 1482 TELE-SYS, INC.1769 STATE OF NEW YORK 1600 TELEVALUE CORP. dba ECON-O-DIAL RIDGECREST0189 STATE OF TEXAS - GSC 0409 TELEVOX PUBLIC COMMUNICATIONS, INC.0929 STENOCALL 1296 TELNEX, INC.1784 SUNTEL NETWORK, INC. 5626 TEL-ONE5228 SUPERTEL COMMUNICATIONS, INC. 0945 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0171 SUPERTEL COMMUNICATIONS, INC. 0300 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)5226 SUPERTEL COMMUNICATIONS, INC. 1957 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)5227 SUPERTEL COMMUNICATIONS, INC. 0489 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)5229 SUPERTEL COMMUNICATIONS, INC. 1601 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0275 SWIFF TRAIN COMMUNICATIONS 1587 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0727 SWITCH 2000, INC. 0330 TEL-SHARE1799 SYMTECH COMMUNICATIONS SERVICES 1520 TEL-SPAN COMMUNICATIONS, INC.1666 SYSTEMS 1000 1363 TEL-TOLL dba ECON-O-DIAL OF BISHOP

20



CODE ASSIGNED TO CODE ASSIGNED TO1485 TELTRUST, INC. 0074 VALU-LINE OF ANGLETON1707 TELVUE CORPORATION 1678 VALU-LINE OF KANSAS, INC.1828 TENCOM 5813 VALU-LINE OF LOUISIANA, INC.5213 TEXACO REFINING AND MARKETING, INC. 0859 VALU-LINE OF LOUISIANA, INC.1599 TEXAS LONG DISTANCE CONROE 1348 VALU-LINE OF TRI-CITIES1331 TEXUSTEL, INC. 1975 VARTEC NATIONAL, INC.0268 THE COMMUNIGROUP 1595 VARTEC TELECOM, INC.1268 THE COMMUNIGROUP OF KC 1811 VARTEC TELECOM, INC.0885 THE COMMUNIGROUP OF KC 1750 VC TELECOMMUNICATION SYSTEMS1998 THE COMMUNIGROUP OF KC 1783 VERTELCO SYSTEMS5608 THE LONG DISTANCE PARTNERSHIP, L.P. 5885 VIATEL, INC.5285 THE OHIO STATE UNIVERSITY 0770 VISA USA INC.1798 THE PAY TELEPHONE COMPANY 0990 VISA USA INC.1385 THE SWITCHBOARD 1939 VISTA-UNITED TELECOMMUNICATIONS5882 THE TELEPHONE CONNECTION OF L.A., INC. 5648 VMA, INC. dba UNIVERSITY TELEPHONE SERVICES, INC.0019 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 5721 VOICE TECHNOLOGY CORPORATION0016 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 0384 VOICECOM SYSTEMS, INC.0462 TMC OF LEXINGTON 1979 VORTEL COMMUNICATIONS, INC.5128 TMC WORLDWIDE, INC. 5677 WATS/800 INC.1335 TOUCH AMERICA, INC. 1712 WCS OPERATORS1360 TOUCH AMERICA, INC. 1569 WEST COAST TELECOMMUNICATIONS, INC.1994 TOUCH AMERICA, INC. 1052 WEST COAST TELECOMMUNICATIONS, INC.1457 TRACE COMMUNICATIONS 1459 WESTCOM LONG DISTANCE5829 TRANSACTION NETWORK SERVICES, INC. 5978 WESTEL TELECOMMUNICATIONS LTD.5825 TRANSACTION NETWORK SERVICES, INC. 0085 WESTEL, INC.1598 TRANSACTION NETWORK SERVICES, INC. 1443 WESTERN OKLAHOMA INFORMATION SYSTEMS5225 TRANSACTION NETWORK SERVICES, INC. 1982 WESTERN TELECOMMUNICATION, INC. (WTCI)5879 TRANSACTION NETWORK SERVICES, INC. 1701 WESTERN TELECOMMUNICATION, INC. (WTCI)1864 TRANSNET 1431 WESTERN TELENET, INC.1097 TRESCOM PUERTO RICO 1946 WESTINGHOUSE COMMUNICATIONS1848 TRESCOM U.S.A, INC. 5101 WESTINGHOUSE COMMUNICATIONS1394 TRESCOM U.S.A., INC./TRESCOM CARIBBEAN 5201 WESTINGHOUSE COMMUNICATIONS1120 TRT TELECOMMUNICATIONS CORPORATION 5202 WESTINGHOUSE COMMUNICATIONS0461 TTE OF CHARLESTON 5102 WESTINGHOUSE COMMUNICATIONS0578 TTI TELECOMMUNICATIONS, INC. 5609 WHATCOM TELECOMM1882 TUCK DATA COMMUNICATIONS 0952 WILKES LONG DISTANCE SERVICE1009 TWT-HEARTLINE 1069 WILLAMETTE VALLEY TELCOM SERVICES0229 U S COMNET 0884 WORLDCOM, INC.5123 U S WEST COMMUNICATIONS 1315 WORLDCOM, INC.0855 UNION TELEPHONE COMPANY 0868 WORLDCOM, INC.0823 UNITED BANK OF DENVER 1290 WORLDCOM, INC.1955 UNITED COMMUNICATIONS, INC. 0883 WORLDCOM, INC.5085 UNITED REFINING COMPANY 0951 WORLDCOM, INC.0542 UNITED STATES CELLULAR CORPORATION 1311 WORLDCOM, INC.5082 UNITED TELEMANAGEMENT SERVICES, INC. 1312 WORLDCOM, INC.1544 UNITED TELEPHONE CO. dba TELAMERICA L.D. 0987 WORLDCOM, INC.0204 UNITED TELEPHONE LONG DISTANCE 1011 WORLDCOM, INC.5353 US AIR 1082 WORLDCOM, INC.5874 US COMMUNICATIONS,INC. 1212 WORLDCOM, INC.0879 US COMMUNICATIONS,INC. 1208 WORLDCOM, INC.1568 US COMM. INC, dba SOUTHWEST L.D.N, INC. 1008 WORLDCOM, INC.1355 US LINK LONG DISTANCE 1084 WORLDCOM, INC.0756 US LONG DISTANCE 1055 WORLDCOM, INC.0030 US LONG DISTANCE 1021 WORLDCOM, INC.0078 US LONG DISTANCE 1027 WORLDCOM, INC.0070 US LONG DISTANCE 1217 WORLDCOM, INC.0556 US LONG DISTANCE 1274 WORLDCOM, INC.5008 US ONE COMMUNICATIONS CORP. 1050 WORLDCOM, INC.0200 US WATS 1053 WORLDCOM, INC.5842 US WEST INTERPRISE AMERICA, INC. 1254 WORLDCOM, INC.5185 USA PAGING 1246 WORLDCOM, INC.0228 USLINK LONG DISTANCE 1267 WORLDCOM, INC.5054 USTEL 1001 WORLDCOM, INC.5875 U.S. COMMUNICATIONS, INC. 1006 WORLDCOM, INC.5876 U.S. COMMUNICATIONS, INC. 1031 WORLDCOM, INC.5877 U.S. COMMUNICATIONS, INC. 1237 WORLDCOM, INC.0271 U.S. NETWORK 1353 WORLDCOM, INC.0298 U.S. NET, INC. 1464 WORLDCOM, INC.1875 U.S. ORDER 1372 WORLDCOM, INC.1040 U.S. SIGNAL CORPORATION 1918 WORLDCOM, INC.0396 U.S. TELE-COMM, INC. 1921 WORLDCOM, INC.0289 VACATION VILLAGES OF AMERICA, INC. 1042 WORLDCOM, INC.0878 VALLEY STAR-TEL 0589 WORLDCOM, INC.5523 VALUE TEL 1846 WORLDCOM, INC.5268 VALU-LINE LONG DISTANCE 1862 WORLDCOM, INC.5759 VALULINE LONG DISTANCE 1874 WORLDCOM, INC.5032 VALULINE LONG DISTANCE 1895 WORLDCOM, INC.0669 VALU-LINE OF AMARILLO 1910 WORLDCOM, INC.

21



ASSIGNED TOWORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WORLDCOM, INC.WYNN-HILL NETWORKXPEDITE SYSTEMS, INC.YAVAPAI TELEPHONE EXCHANGE

22

TABLE 4LIST OF FGD CIC CODE ASSIGNMENTS


CODE ASSIGNED TO CODE ASSIGNED TO0001 WORLDCOM, INC. 0071 DIGITAL NETWORK, INC.0002 WORLDCOM, INC. 0072 NBD BANK, NA0003 FRONTIER COMMUNICATIONS INT'L, INC. 0073 COMMUNICATIONS OPTIONS INC.0004 ATX TELECOMMUNICATIONS SERVICES 0074 USTEL0005 SOUTHWESTERN TELECOM, INC. 0075 ALLCOMM LONG DISTANCE, INC.0006 WORLDCOM, INC. 0076 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.0007 TELAMARKETING COMMUNICATIONS INC. 0077 GENERAL COMMUNICATION, INC.0008 WORLDCOM, INC. 0078 ENHANCED SERVICES BILLING, INC. (ESBI)0009 TWT-HEARTLINE 0079 RED ROSE SYSTEMS dba D&E LONG DISTANCE0010 VALLEY TELEPHONE LONG DISTANCE 0080 WORLDCOM, INC.0011 WORLDCOM, INC. 0081 TOTAL-TEL USA, INC.0012 LCI INTERNATIONAL 0082 DISCOUNT PAYPHONE0013 ACCESS SERVICES dba PACIFIC NW TELECOM 0084 WORLDCOM, INC.0014 MARATHON COMMUNICATIONS 0085 WESTEL, INC.0015 HAWAIIAN TELEPHONE COMPANY (GTE) 0086 FRONTIER COMMUNICATIONS INT'L, INC.0016 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 0087 TELECOM*USA [MCI]0017 NCHE TELECOMMUNICATIONS NETWORK, INC. 0088 SBS/MCI0018 SHARED USE NETWORK 0090 WESTEL, INC.0019 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC. 0091 CALL TECHNOLOGY CORP. OF PHILADELPHIA0020 INNOVATIVE TELECOM CO. 0092 MCI0021 WORLDCOM, INC. 0093 MELBOURNE INTERNATIONAL COMM. LTD.0022 MCI 0094 NOSVA, L.P.0023 IDS LONG DISTANCE, INC. 0095 APPLE COMMUNICATIONS0024 PRIMUS 0096 CITIZENS TELECOM0025 INTER CONTINENTAL TELEPHONE 0097 TRESCOM PUERTO RICO0026 NET-TEL CORPORATION 0098 NETECH COMM. A US WEST COMPANY0027 NORTH AMERICAN COMMUNICATIONS GROUP 0099 PAC-WEST TELECOMM, INC. dba AMERICALL0028 AMERICAN LONG DISTANCE CORPORATION 0110 TANDEM ACCESS FOR DATABASE QUERY0029 TELECOMMUNICATIONS CONSULTANTS, INC. 0111 ROSEVILLE TELEPHONE CO.0030 U.S. LONG DISTANCE, INC. 0112 BUSINESS DISCOUNT PLAN dba LD DISCOUNT PLAN0031 WORLDCOM, INC. 0113 AMERITECH LONG DISTANCE SERVICES0032 UNITED COMMUNICATIONS ASSN., INC. 0114 TELELINK0033 SPRINT 0115 BKC TELECOMMUNICATIONS, INC.0034 INTELLICALL OPERATOR SERVICES 0116 TELNET GLOBAL COMMUNICATIONS0035 LONG DISTANCE AMERICA 0117 CELLNET0036 LONG DISTANCE SAVERS 0118 A & N TELECOM0037 BN1 TELECOMMUNICATIONS, INC. 0119 ALO-USA CORP.0038 CITIZENS TELECOM 0120 TRT TELECOMMUNICATIONS CORPORATION0040 US SIGNAL CORPORATION 0121 FUTURE TELEPHONE COMMUNICATIONS0041 VTA, INC. 0122 MCI0042 TELECOMMUNICATION SYSTEMS 0123 DISCOVERY TELECOM, INC.0043 CONSOLIDATED COMM. PUBLIC SERVICES 0124 HORRY TELEPHONE LONG DISTANCE, INC.0044 ALLNET COMM. SVC., INC. [LDX,LEXITEL] 0125 ATLANTIC TELEPHONE COMPANY, INC.0045 PSA, INC. 0126 SONIC COMMUNICATIONS, INC.0046 CAM-NET, INC. 0127 CORPORATE COMMUNICATIONS GROUP, INC.0047 RANGER TELECOMMUNICATIONS 0129 BAYSTAR SATELLITE PAGING0048 ETSC 0130 COMPUTER TELEPHONE CORP.0049 HEDGES & ASSOCIATES 0131 USP&C, INC.0050 WORLDCOM, INC. 0132 MPC BUS. COMMS. SYSTEMS, INC./EASTON TELECOM SVCS.0051 FIBERLINK COMMUNICATIONS CORP. 0133 MCI0052 WEST COAST TELECOMMUNICATIONS, INC. 0134 RIKTEL COMMUNICATIONS, INC.0053 WORLDCOM, INC. 0135 NETWORK ONE0054 EASTERN TELEPHONE SYSTEMS, INC. 0136 EASTERN TELECOM INTERNATIONAL0055 WORLDCOM, INC. 0137 ACCESS NETWORK SERVICES, INC.0056 QWEST COMMUNICATIONS 0138 METCOM CANADA LIMITED0057 NATIONWIDE LONG DISTANCE 0139 ASCENDING TECHNOLOGIES0058 FRONTIER LOCAL SERVICES, INC. 0140 TRANS NATIONAL COMMUNICATIONS, INC.0059 NATIONAL INDEPENDENT CARRIER EXCH., INC. 0141 IFC COMMUNICATIONS0060 ECONOMY TELEPHONE, INC. 0142 WORLDCOM, INC.0061 AMERICAN COMMUNICATIONS NETWORK, INC. 0143 DIGITAL NETWORK, INC.0062 KENTUCKY TELEPHONE CORP. 0144 ASSOCIATION COMM.0063 COAST INTERNATIONAL, INC. 0145 AMERICAN COMMUNICATIONS INT'L, LTD.0064 DIGITAL NETWORK SERVICES, INC. 0146 PIONEER LONG DISTANCE0065 COMMUNICATIONS SYSTEMS INTERNATIONAL 0147 DATA & ELECTRONIC SERVICES, INC.0066 ALLNET 0148 KULL CELLULAR CORP.dba ALLEGAN CELLULAR0067 T.B. ENTERPRISES 0149 TEL-COM TELECOMMUNICATIONS, INC.0068 INTERSTATE SAVINGS 0170 MCLEOD NETWORK SERVICES0069 LONG DISTANCE TRANSFER, INC. 0171 MULTIMEDIA LONG DISTANCE CO.0070 U.S. LONG DISTANCE, INC. 0172 USP&C, INC.

23

TABLE 4LIST OF FGD CIC CODE ASSIGNMENTS--CONTINUED


CODE ASSIGNED TO CODE ASSIGNED TO0176 WBC COMMUNICATIONS, INC. 0251 PARTNERS TELECOM, INC.0177 SPRINT 0252 LONG DISTANCE/USA [SPRINT]0178 PDQ COMMUNICATIONS SOURCE 0253 LITEL/LCI INTERNATIONAL0179 NETWORK MARKETING GROUP 0254 WORLDCOM, INC.0180 CENTRAL TELEPHONE CO. 0255 PUBLIC PHONE0181 DIGITAL COMMUNICATIONS, INC. 0256 APPLIED SIGNAL CORPORATION0182 ALLGOOD TAYLOR TELEPHONE 0257 CONQUEST0183 MCI METRO 0258 METRONET LONG DISTANCE COMMUNICATIONS0184 STONE & COMPANY 0259 CALL FOR LESS LONG DISTANCE0185 GTC 0260 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC.0186 STANDARD LONG DISTANCE 0261 HERTZ TECHNOLOGIES, INC.0187 BELLSOUTH LONG DISTANCE 0262 CARIB COMMUNICATIONS, L.P.0188 MCI/1-800-COLLECT 0263 WORLDCOM, INC.0189 STATE OF TEXAS - GSC 0264 MIIC dba POLARIS TELCOM0191 PARADISE COMMUNICATIONS 0266 WORLDCOM, INC.0192 AMERINET COMMUNICATIONS 0267 WORLDCOM, INC.0193 LANDMARK COMMUNICATIONS COMPANY, INC. 0268 THE COMMUNIGROUP0194 EASTON TELECOM SERVICES, INC. 0269 TEL AMERICA L.D.T.S.0195 STARCOM INTERNATIONAL OPTICS CORP. 0270 CHERRY COMMUNICATIONS0197 COMANCHE COUNTY LONG DISTANCE 0271 U.S. NETWORK0199 CRESCENT COMMUNICATIONS 0272 BELL ATLANTIC COMMUNICATIONS, INC.0200 US WATS 0273 EDS .0201 NORTH AMERICAN TELEPHONE 0274 WORLDCOM, INC.0202 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0275 VEND-TEL-CO., LTD.0203 CYPRESS TELECOMMUNICATIONS CORP. (CYTEL) 0276 BEE LINE LONG DISTANCE0204 UNITED TELEPHONE LONG DISTANCE 0279 ASSOCIATED TELENET INC./ A CTI COMPANY0205 LONE STAR TELECOM 0280 L.D. SERVICES, INC0206 GLOBAL COM 0281 DIGITAL TECHNOLOGIES, INC.0207 2JE TELECOMMUNICATIONS 0282 ACTION TELCOM CO.0208 WORLDCOM, INC. 0283 IOWA COMMUNICATIONS NETWORK0210 NOS COMMUNICATIONS, INC. 0284 AMERIVISION COMMUNICATIONS, INC.0211 FRONTIER COMMUNICATIONS INT'L, INC. 0285 FEDERAL TRANSTEL, INC.0212 WORLDCOM, INC. 0286 CINCINNATI BELL LONG DISTANCE0213 LONG DISTANCE TELEPHONE SAVERS 0287 ATS NETWORK COMMUNICATIONS0214 TCA COMMUNICATIONS 0288 AT&T COMMUNICATIONS0215 PRONTO LONG DISTANCE INC. 0290 WORLDCOM, INC.0216 METROLINK 0291 CALL SAVERS, INC.0217 WORLDCOM, INC. 0292 TCG0218 TEL-CENTRAL OF JEFFERSON CITY 0293 CINCINNATI BELL LONG DISTANCE0219 TELEPHONE BILLING SERVICE 0295 GLENS FALLS LONG DISTANCE SERVICE0220 TELECOM*USA [MCI] 0296 TELNEX, INC.0221 CAPITAL TELECOMMUNICATIONS, INC. 0297 LONG DISTANCE WHOLESALE CLUB0222 MCI 0298 U.S. NET, INC.0223 CABLE & WIRELESS COMMUNICATIONS, INC. 0299 LECNET, INC.0224 TELECOM*USA [MCI] 0300 CALL AMERICA0225 IOWA NETWORK SERVICES, INC. 0301 WESTERN TELEPHONE & TELEVISION0226 ONE CALL COMMUNICATIONS 0302 AUSTIN BESTLINE0227 PEOPLE'S TELEPHONE COMPANY, INC. 0303 EASTERN TELELOGIC CORPORATION0228 USLINK LONG DISTANCE 0304 ARCH TELECOM0229 U S COMNET 0305 MOTOROLA INC.0231 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0306 COLORADO RIVER COMMUNICATIONS0232 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 0307 AMERICAN TELNET, INC.0233 DELTACOM L.D.S. 0308 NETWORK OPERATOR SERVICES, INC.0234 ACC LONG DISTANCE CORPORATION 0310 INTERNATIONAL TELEPHONE CORP. (ITC)0235 AUTOMATED TELEPHONE 0311 WORLDCOM, INC.0236 LITEL/LCI INTERNATIONAL 0312 WORLDCOM, INC.0237 WORLDCOM, INC. 0313 STAR TEL, INC.0238 COMWEST COMMUNICATIONS 0314 AT&T WIRELESS SERVICES, INC.0239 ADVANTAGE COMMUNICATIONS GROUP, INC. 0315 WORLDCOM, INC.0240 DELTACOM L.D.S. 0316 ABCO COMMUNICATIONS, INC.0241 AMERICAN LONG LINES 0319 CONQUEST0242 SASKTEL 0321 TELECOM*USA [MCI]0243 BEEHIVE TELEPHONE 0322 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC.0244 PHOENIX NETWORK 0323 BC TEL0245 FRONTIER COMMUNICATIONS INT'L, INC. 0324 EDMONTON TELEPHONE CORPORATION0246 WORLDCOM, INC. 0325 ECONO. CALL LONG DISTANCE SERVICES0248 STANDARD COMMUNICATIONS, INC., dba SCI 0326 NATIONAL FIBERNET, INC.0249 PSP MARKETING GROUP, INC. 0327 ECI COMMUNICATIONS0250 WORLDCOM, INC. 0328 IDAHO STATE GOVERNMENT

24



CODE ASSIGNED TO CODE ASSIGNED TO0330 TEL-SHARE 0402 INTEGRETEL, INC.0331 TEXUSTEL, INC. 0403 NATIONWIDE LONG DISTANCE0332 NORTHLAND TELEPHONE SYSTEMS LTD. 0404 INTERNATIONAL TELCOM, LTD.0333 SPRINT 0405 ALTERNATE COMMUNICATIONS TECHNOLOGY, INC.0335 TOUCH AMERICA, INC. 0406 WORLDCOM, INC.0336 COMMONWEALTH LONG DISTANCE CO. 0407 NUESTRA TELEFONICA0338 MIDCO COMMUNICATIONS 0408 WORLDCOM, INC.0339 COMMUNICATION CABLE LAYING CO., INC. 0409 TELEVOX PUBLIC COMMUNICATIONS, INC.0340 HUB DISTRIBUTING, INC. 0410 CALL AMERICA/PALM DESERT0341 NATIONAL TELE-SAV, INC. 0411 AMERICAN EXPRESS TRAVEL RELATED SVCS.0342 PREMIER LONG DISTANCE SVCS. INC. 0412 PENN TELECOM, INC.0343 CHESTER LONG DISTANCE SERVICES, INC. 0413 ALTERNATIVE LONG DISTANCE, INC. dba MONEY $AVERS0344 GST CALL AMERICA 0414 ADDTEL COMMUNICATIONS0345 ACC LONG DISTANCE CORPORATION 0415 ESPI, INC.0346 TOTALNET COMMUNICATIONS, INC. 0416 AMERITEL C/O NETWORK TELEPHONE SVCS, INC.0347 UNIVERSAL LONG DISTANCE, INC. 0417 DWR LONG DISTANCE0348 SPRINT CANADA, INC. 0419 H.G. TELECOM, INC0349 COMMUNICATION CABLE LAYING CO., INC. 0420 PHOENIX NETWORK0350 FIBERNET TELEMANAGEMENT, INC. 0421 WORLDCOM, INC.0351 CALL AMERICA OF RIVERSIDE 0422 ISLAND TEL, PEI0352 STANDARD TELCOM, INC. 0423 NICKEL FONE0353 WORLDCOM, INC. 0424 AGT LIMITED0354 DISCOUNT LONG DISTANCE OF AMERICA 0425 CAPITAL NETWORK SYSTEMS INC.0355 U. S. LINK 0426 VOYAGER NETWORKS, INC.0356 BLUEGRASS LONG DISTANCE, INC. 0427 WESTERN TELECOM, INC.0357 MANITOWOC LONG DISTANCE SERVICE 0428 WORLDCOM, INC.0358 LCI INTERNATIONAL 0429 EXTELCOM dba EXPRESS TEL0359 EMPIRE ONE TELECOMMUNICATIONS, INC. 0431 WESTERN TELENET, INC.0360 TOUCH AMERICA, INC. 0432 LITEL/LCI INTERNATIONAL0361 DAKOTA COOPERATIVE TELECOMM., INC. 0433 INFO-TEL, INC.0362 AMERISYSTEMS, INC. 0434 MARITIME TEL & TEL0363 BELL CANADA 0435 GLOBAL TELEMEDIA INTERNATIONAL, INC.0364 EQUICOM COMMUNICATIONS, INC. 0438 SAM'S DISCOUNT LONG DISTANCE, INC.0365 EMI COMMUNICATIONS CORP 0439 STAR TEL, INC.0366 AMERICAN TELCO, INC. 0440 MFS INTELNET, INC.0367 WHOLESALE COMMUNICATIONS 0441 ESCONDIDO TELEPHONE COMPANY0368 BUDGET CALL LONG DISTANCE 0442 WORLDCOM, INC.0369 LOMA INTERNATIONAL, INC. 0443 WESTERN OKLAHOMA INFORMATION SYSTEMS0370 AMERICAN NETWORK EXCHANGE, INC. 0444 ALLNET COMM. SVC., INC. [LDX,LEXITEL]0372 PACIFIC BELL COMMUNICATIONS 0445 NEWFOUNDLAND TELEPHONE0373 ECONO-LINE WACO/ECONO-LINE MIDLAND 0446 WORLDCOM, INC.0374 CONNECT AMERICOM CORP. 0447 FAXNET CORPORATION0375 AT&T EASYLINK SERVICES 0448 NB TEL0376 NORTHERN TELECOM, INC. 0449 MERRILL LYNCH0377 BELLSOUTH LONG DISTANCE 0450 WORLDCOM, INC.0378 TEL SERV 0451 LCI INTERNATIONAL0379 FLEABUSTERS 0452 LCI INTERNATIONAL0380 TELESERV CORPORATION 0453 WORLDCOM, INC.0381 USN COMMUNICATIONS 0455 GLOBAL TEL*LINK, INC.0382 LONG DISTANCE MANAGEMENT INC. 0456 WORLDCOM, INC.0383 CARIBBEAN TELEPHONE & TELEGRAPH, INC. 0457 TELCO COMMUNICATIONS GROUP dba DIAL & SAVE0384 TLD, INC. 0458 TELEMANAGEMENT CONSULTANTS CORPORATION0385 THE SWITCHBOARD 0459 WESTCOM LONG DISTANCE0386 CONTINENTAL CABLEVISION 0460 INDEPENDENT NETWORK SERVICES, INC.0387 AT&T COMMUNICATIONS 0461 TTE OF CHARLESTON0388 KDD AMERICA, INC. 0462 TMC OF LEXINGTON0389 EATELNET 0463 REDWOOD LONG DISTANCE0390 ONE-2-ONE COMMUNICATIONS 0464 WORLDCOM, INC.0391 OMNICALL COMMUNICATIONS CORPORATION 0465 INTELCO0392 HSS VENDING DISTRIBUTORS 0466 VIRGIN ISLANDS TELE-COM0393 INTERMEDIA COMMUNICATIONS, INC. 0467 CHICKASAW LONG DISTANCE CO.0394 TRESCOM U.S.A., INC./TRESCOM CARIBBEAN 0468 ITC NETWORKS0395 LONG DISTANCE NETWORK 0469 GMW COMPANY0396 U.S. TELE-COMM, INC. 0470 AMERICAN TEL GROUP, INC.0397 TELALEASING ENT.INC dba PHONE ZONE INC. 0471 WORLDCOM, INC.0398 M2 COMMS. dba DIAL LONG DISTANCE BILLING SVCS. 0472 FIRST CHOICE LONG DISTANCE, INC.0399 TELCO HOLDINGS, INC. 0474 USN COMMUNICATIONS0400 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0475 FIRSTEL0401 NTI 0476 TEK COMMUNICATIONS, INC.

25



CODE ASSIGNED TO CODE ASSIGNED TO0477 POPP TELCOM 0550 CENTURY LONG DISTANCE0478 ITC NETWORKS 0551 ACCESS-PLUS, INC.0479 FIBERTECH TELECOM, INC. 0552 LAKE STATES COMMUNICATIONS, INC.0480 VISTA GROUP INTERNATIONAL 0553 PARKWAY COMMUNICATIONS, INC.0481 TELEDATA INTERNATIONAL, INC. 0554 CELLTOLL CORPORATION0482 TELE-SYS, INC. 0555 WORLDCOM, INC.0483 XPEDITE SYSTEMS, INC. 0556 U.S. LONG DISTANCE, INC.0484 COMMUNITY LONG DISTANCE 0557 ABC TELECOM, INC.0485 TELTRUST, INC. 0558 MIDCOM OF ARIZONA,INC.0486 IRONTON LONG DISTANCE CO. 0560 TCI COMMUNICATIONS, INC.0487 LCT LONG DISTANCE 0561 LCT LONG DISTANCE0488 WORLDCOM, INC. 0562 LCI0489 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET) 0563 LINKUSA CORPORATION0490 PHOENIX COMMUNICATIONS GROUP, INC. 0564 LONG DISTANCE OHIO, INC.0491 NORTHERN ARIZONA COMMUNICATIONS CORP. 0565 METRO ONE DIRECT0492 COASTAL LONG DISTANCE SERVICES, INC. 0566 T-NET0493 EXTELCOM dba EXPRESS TEL 0567 AMERICOM COMMUNICATIONS0494 TRANSAMERICA COMMUNICATIONS, INC. 0568 US COMM. INC, dba SOUTHWEST L.D.N, INC.0495 MID SEA dba MIDCOM COMMUNICATIONS, INC. 0569 WEST COAST TELECOMMUNICATIONS, INC.0497 ECON-A-CALL INC. OF HAYS 0571 CHAUTAUQUA & ERIE COMMUNICATIONS, INC.0498 NORLIGHT TELECOMMUNICATIONS, INC. 0572 PAC TEL PAGING, A PACIFIC TELESIS CO.0499 NORLIGHT TELECOMMUNICATIONS, INC. 0573 AMERICAN TELECOMMUNICATIONS HOLDING LTD.0500 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 0574 U.S. CONNECT CORP.0501 CARRIER CONCEPTS INTERNATIONAL CORP. 0576 U.S.FIBERLINE COMMUNICATIONS, INC.0502 WORLDXCHANGE 0577 STRATEGIC ALLIANCES, INC0503 FONE AMERICA, INC. 0578 TTI TELECOMMUNICATIONS, INC.0504 AMERICAN LONG DISTANCE SERVICES 0579 ALIANT SYSTEMS, INC.0505 CENTURY TELECOMMUNICATIONS, INC. 0580 BIXBY TELEPHONE LONG DISTANCE CO.0506 FRIENDSHIP LONG DISTANCE 0581 BEN LOMAND COMMUNICATIONS, INC.0507 FONOROLA 0582 WEST INTERACTIVE GROUP0508 INTEX 0583 GST NET, INC.0509 OLYMPIC TELECOMMUNICATIONS, INC. 0584 HEREFORD LONG DISTANCE SERVICES0510 INNOVATIVE COMMUNICATIONS, INC. 0585 CUSTOM TELECONNECT, INC.0511 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0586 DIGITAL NETWORK, INC.0512 LOCATE TELEPHONE COMPANY 0587 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0513 ICG dba INTERCONTINENTAL COMMS. LONG DISTANCE 0588 WORLDCOM, INC.0514 DOMINICAN COMMUNICATIONS 0589 WORLDCOM, INC.0515 FRONTIER COMMUNICATIONS INT'L, INC. 0590 OCOM CORPORATION0516 FRONTIER COMMUNICATIONS INT'L, INC. 0591 INTEL COMMUNICATIONS0518 TELECON COMMUNICATIONS CORPORATION 0593 TRANSACTION NETWORKS, INC.0519 RSL COM U.S.A. 0594 EAGLECOM, INC.0520 TEL-SPAN COMMUNICATIONS, INC. 0595 VARTEC TELECOM, INC.0522 TRANSACTION NETWORK SERVICES 0596 U.S. ADVANTAGE LONG DISTANCE0523 WORLDCOM, INC. 0597 PACIFIC GATEWAY EXCHANGE0524 WHITMAN COLLEGE 0598 AMERICAN DISCOUNT TELECOMMUNICATIONS, INC.0525 LEXINGTON TELEPHONE L.D. CO., INC. 0599 INTELCOM GROUP, INC.0526 POKA-LAMBRO TELECOMMUNCATIONS, INC. 0601 NORTH AMERICAN INTELECOM0527 INDEPENDENCE TELEPHONE CO. 0602 TELESERVE COMMUNICATIONS0529 TELECOM WEST 0603 NATIONAL TELEPHONE COMMUNICATIONS0530 CELLULAR LONG DISTANCE CO. (CUL) 0604 ECONOPHONE, INC.0531 FARMERS LONG DISTANCE, INC. 0605 INTERCONTINENTAL TELCOM INC.0532 EQUAL ACCESS OF WASHINGTON 0606 BIZ TEL LONG DISTANCE TELEPHONE CO.0533 LONG DISTANCE DISCOUNT INC. 0609 TELEGLOBE USA, INC.0534 TOUCH 1 COMMUNICATIONS 0610 PIONEER LONG DISTANCE0535 WORLDCOM, INC. 0612 TOTAL WORLD TELECOM0536 LONG DISTANCE MANAGEMENT 0613 CYBERNET INTERNATIONAL, INC.0537 LCI INTERNATIONAL 0614 CINCINNATI BELL LONG DISTANCE0538 WORLDCOM, INC. 0615 CAM-NET COMMUNICATIONS NETWORK, INC.0539 ALLNET 0617 AMVOX0540 AMERICAN LONG DISTANCE EXCHANGE, INC. 0618 RSL COM U.S.A.0541 CONETCO COMMUNICATIONS CORPORATION 0619 COLORADO RIVER COMMUNICATIONS0542 SEATTLE LONG DISTANCE NETWORK, INC. 0620 TELEHOP COMMUNICATIONS, INC.0543 DIGITRAN CORP. 0621 MID TNC dba MIDCOM COMMUNICATIONS, INC.0544 UNITED TELEPHONE CO. dba TELAMERICA L.D. 0622 BMG0545 KEYSTONE TELECOM, INC. 0623 NTI0546 WORLDCOM, INC. 0624 AMERICAN TELESOURCE INTERNATIONAL, INC.0547 TELEFONICA LARGA DISTANCIA 0625 EDS0548 CLEARTEL COMMUNICATIONS 0626 TEL-ONE0549 NATIONAL BRANDS, INC. 0627 NATIONWIDE EMERGENCY TELECOMM. SYSTEM

26



CODE ASSIGNED TO CODE ASSIGNED TO0628 STAR TELEPHONE LONG DISTANCE 0701 CONTINENTAL LONG DISTANCE0629 WORLDXCHANGE 0703 KEYSTONE TELECOMMUNICATIONS, INC.0630 TELEGROUP 0704 FIBERNET TELECOMMUNICATIONS, INC.0631 LONG DISTANCE OF MICHIGAN 0705 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC.0632 NATIONAL DATA CORPORATION 0706 ICON COMMUNICATIONS CORPORATION0633 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0707 TELVUE CORPORATION0634 BOTTOM LINE TELECOMMUNICATIONS, INC. 0708 LIGHT LINK INC/dba TAYLOR COMM. GRP.0635 METRO TELEPHONE, INC. 0709 TEL AMERICA0636 VARTEC TELECOM dba CLEAR CHOICE COMMUNICATIONS 0711 LAS VEGAS CONVENTION & VISITORS AUTHORITY0637 FOX COMMUNICATIONS CORP. 0712 WCS/DIAL ONE0638 NORTHWEST TELECOM, LTD. 0713 NORTHERN WISCONSIN L.D.S.0639 NEP LONG DISTANCE CO. 0715 CALL U.S.INCORPORATED0640 COMMUNICATIONS BROKERS, INC. 0716 NATIONWIDE COMMUNICATIONS, INC.0641 TELECOMMUNICATIONS SERVICE CENTER, INC. 0717 NETWORK ONE, INC.0642 R,D,&J COMMUNICATIONS MGMT. INC. 0718 WKP, INC.0643 WINSTAR 0719 STARTEC, INC.0644 ARCADA COMMUNICATIONS 0721 VOICE TECHNICAL CORPORATION0645 AMERICAN COMMUNICATIONS TECHNOLOGY, INC. 0722 HI-PLAINS NTS COMMUNICATIONS0646 CONTACT AMERICA, INC. 0723 CAPITAL TELECOMMUNICATIONS, INC.0647 PIONEER LONG DISTANCE, INC. 0724 WORLDCOM, INC.0648 MID MCND dba MIDCOM COMMUNICATIONS, INC. 0725 CONSOLIDATED NETWORK INC.0649 WORKING ASSETS 0726 PROCOM, INC.0650 EDS 0727 SWITCH 2000, INC.0651 O.L.C. COMPANY 0728 PEOPLES COMMUNICATION, INC.0652 BELL ATLANTIC COMMUNICATIONS, INC. 0729 TEL AMERICA0653 SPECIALIZED TELECOMMUNICATIONS 0730 ATNT OF UNITED BUSINESS & COMM. SVCS.0654 CINCINNATI BELL LONG DISTANCE 0731 TELESCAN, INC.0655 T-NETIX, INC. 0732 AT&T COMMUNICATIONS0656 NATIONAL NETWORK CORP. 0733 WORLDCOM, INC.0657 NATIONAL TELECOM OF FLORIDA 0734 SCHERERS COMMUNICATIONS GROUP, INC.0658 OCI 0735 FTI COMMUNICATIONS0659 CTA COMM. INC. dba CTA LONG DISTANCE 0736 XNET, INC.0660 CONNECT AMERICA COMMUNICATIONS, INC. 0737 WORLDCOM, INC.0661 COASTAL TELEPHONE CO. 0738 WORLDCOM, INC.0662 VALULINE LONG DISTANCE 0740 PUBLIC SWITCH CORP.0663 AMERICAN TELCO, INC. 0741 WORLDCOM, INC.0664 TOTAL TELEPHONE, INC. OF UTAH 0742 WORLDCOM, INC.0665 LCI INTERNATIONAL 0743 PENINSULA LONG DISTANCE SERVICE, INC.0666 SYSTEMS 1000 0744 ST. JOE COMMUNICATIONS, INC.0667 COMMUNICATIONS INC.dba ECI 0745 TELEPHONE ELECTRONICS NETWORK, LTD.0668 US FIBERCOM NETWORK, INC. 0746 NATIONAL TELEPHONE EXCHANGE (PA)0669 TCA LONG DISTANCE 0748 COMMNET CELLULAR, INC.0670 CAMERON LONG DISTANCE 0749 TELAMERICA COMMUNICATIONS, INC.0671 DIGITAL TELECOMMUNICATIONS, INC. 0750 HI-RIM COMMUNICATIONS, INC.0672 CENTURY COMMUNICATIONS 0751 WORLDCOM, INC.0673 PRO TAS TELECOMMUNICATIONS 0752 EXCEL TELECOMMUNICATIONS, INC.0674 VENSER, INC. 0753 WAUSAU LONG DISTANCE SERVICE0675 COMMUNICATION SERVICES OF COLORADO 0754 ADVANTIS0677 WATS/800, INC. 0755 ADVANTIS0678 VALU-LINE OF KANSAS, INC. 0756 ZEROPLUS DIALING, INC.0679 FEIST LONG DISTANCE 0757 PACE LONG DISTANCE SERVICE0680 MIDWEST TELEPHONE SERVICE, INC. 0758 PACE LONG DISTANCE SERVICE0681 HUNTLEIGH TELECOMM. GROUP, INC. 0759 TELENET COMM. CORP. [SPRINT]0682 AMERICALL COMMUNICATIONS 0760 ALTERNATIVE LONG DISTANCE, INC.0683 WORLDCOM, INC. 0762 STATE OF CALIFORNIA - CALNET0684 LCT LONG DISTANCE 0763 SOUTHERN NEW ENGLAND TELEPHONE (SNET)0685 INTL.800 TELECOM dba TELECALL LONG DIST. 0764 NETWORK PLUS0686 AT&T CANADA LONG DISTANCE SERVICES CO. 0765 NETWORK LONG DISTANCE0687 NTS COMMUNICATIONS INC. 0766 YAVAPAI TELEPHONE EXCHANGE0688 MUSTANG TELE-COMMUNICATIONS, INC. 0767 PAYLINE SYSTEMS, INC.0689 TELEMANAGEMENT CONSULTANTS CORPORATION 0769 OMNI COMMUNICATIONS, INC.0690 CORPORATE TELEMANAGEMENT GROUP 0770 SOURIS RIVER TELECOMMUNICATIONS COMPANY0691 HAMILTON TELECOMMUNICATIONS 0771 TELECOM*USA [MCI]0693 DELUXE DATA SYSTEMS 0772 ADVANTIS0694 FRONTIER LONG DISTANCE OF AMERICA 0773 SPRINT CANADA, INC.0695 OPTICALL COMMUNICATIONS SERVICES 0774 CITYNET COMMUNICATIONS, INC.0696 INTEGRATED SYSTEMS CORPORATION 0775 PENCOR SERVICES dba PALMERTON LONG DIST.0697 MATRIX TELECOM 0776 PRIORITY ONE LONG DISTANCE0698 NYNEX - CORRIDOR 0777 SPRINT0699 US TELESERVICES, INC. 0778 SHOW-ME LONG DISTANCE, INC.0700 TEL AMERICA 0779 AUTUMN COMMUNICATIONS, INC.

27



CODE ASSIGNED TO CODE ASSIGNED TO0780 MATRIX TELECOM 0866 ALASCOM, INC.0781 WXL COMMUNICATIONS, LTD. 0867 BITTEL TELECOMMUNICATIONS CORPORATION0782 WORLDCOM, INC. 0868 WORLDCOM, INC.0783 MANITOBA TELEPHONE SYSTEM 0869 AT&T CANADA LONG DISTANCE SERVICES CO.0784 SUNSHINE TELEPHONE, INC. dba SUNTEL 0870 BLUE RIDGE TELEPHONE0785 NETWORK TECHNOLOGIES INC. 0871 NETWORK BILLING AND COLLECTIONS, INC.0786 WORLDCOM, INC. 0872 SPRINT0787 STAR TEL OF ABILENE 0873 ONE STAR LONG DISTANCE0788 C-COM 0874 WORLDCOM, INC.0789 WORLDCOM, INC. 0876 TELECOM*USA [MCI]0790 AFFILIATED TELECOM SVCS. INC. 0877 WILLAMETTE VALLEY TELECOM0791 B.R. COMMUNICATIONS 0878 VALLEY STAR-TEL0792 SOUTHTEL CORPORATION 0879 US COMMUNICATIONS,INC.0793 SOUTHWEST TEXAS COMMUNICATIONS, INC. 0880 ONE CALL COMMUNICATIONS0794 AMERITEL 0881 COASTAL TELEPHONE CO.0795 CAPROCK TELEMANAGEMENT 0882 HOME OWNERS L.D. dba HOLD BILLING SVCS.0796 INDIANTOWN TELEPHONE LONG DISTANCE 0883 TEASE COMMUNICATIONS0797 WORLDCOM, INC. 0884 WORLDCOM, INC.0798 THE PAY TELEPHONE COMPANY 0885 THE COMMUNIGROUP OF KC0799 LONG DISTANCE INTERNATIONAL 0886 GUIDE NETWORK INTERNATIONAL0800 WORLDCOM, INC. 0887 TELEMANAGEMENT CONSULTANTS CORPORATION0801 WORLDCOM, INC. 0888 MCI0802 ELECTRIC LIGHTWAVE, INC. 0889 VALU-LINE OF ST. JOSEPH0803 LOW COUNTRY CARRIER dba HARGRAY L.D. CO. 0890 NORTH COUNTY COMMUNICATIONS CORPORATION0805 OCI 0891 OPERATOR SERVICE COMPANY0806 NACT 0892 SOUND COMMUNICATIONS WEST0807 SOUTH CAROLINA NETWORK, INC. 0893 CONCORD TELEPHONE LONG DISTANCE (CT LONG DISTANCE)0808 EASTERN TELECOM dba INTERQUEST 0895 WORLDCOM, INC.0809 ASIA INTERNATIONAL SERVICES CORP. (AIC) 0896 THE REAL PUBLIC TELEPHONE COMPANY, INC.0810 MIDCOM COMMUNICATIONS, INC. 0897 ITC NETWORK OF UTAH0811 VARTEC TELECOM, INC. 0898 MCI0813 AMERICAN TELECOMMUNICATIONS ENTERPRISES 0899 TELEPHONE EXPRESS0814 DISCOUNT AMERICA 0900 MCI0816 CONSOLIDATED TECHNOLOGIES, INC (CTI) 0902 COAST TO COAST TELECOMMUNICATIONS0817 VALUE-ADDED COMMUNICATIONS 0903 VRS BILLING SYSTEMS, INC.0818 VARTEC TELECOM, INC. 0904 INTERLINK TELECOMMUNICATIONS0819 CABLEVISION LIGHTPATH, INC. 0905 PIZZA HUT, INC.0820 G.E. EXCHANGE 0907 UNI-TEL OF FARMINGTON0822 ATHENA INTERNATIONAL L.L.C. 0908 NTC, INC.0823 UNITED BANK OF DENVER 0909 CHADWICK TELEPHONE0824 WORLDCOM, INC. 0910 WORLDCOM, INC.0826 TELECOM*USA [MCI] 0911 WORLDCOM, INC.0827 MVP COMMUNICATIONS, INC. 0912 MRC TELECOMMUNICATIONS, INC.0828 EXCEL TELECOMMUNICATIONS, INC. 0914 CENTURY TELECOMMUNICATIONS, INC.0829 MULTIMEDIA TELEPHONE SERVICE, INC. 0915 TELE TECH, INC.0830 PUBLIC SERVICE COMPANY OF NM 0917 PAY TEL COMMUNICATIONS, INC.0831 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0918 WORLDCOM, INC.0832 TELECOM*USA [MCI] 0919 TEL NET,INC.0833 BUSINESS TELECOM, INC. 0920 HONGKONG TELECOM (CANADA)0834 CTS TELCOM OF FLORIDA 0921 WORLDCOM, INC.0835 TELECOM*USA [MCI] 0922 FEB CORPORATION0836 BRANSON TELEPHONE 0923 THRIFTY CALL, INC.0837 NORLIGHT TELECOMMUNICATIONS, INC. 0924 XTEL0838 PHONETEL TECHNOLOGIES, INC. 0925 KELHORN COMMUNICATIONS, INC.0839 CABLE & WIRELESS COMMUNICATIONS, INC. 0926 LA CONEXION FAMILIAR, INC.0840 WORLD PASS COMMUNICATIONS CORP. 0927 ADVANCED RADIO COMMUNICATIONS SYSTEMS0841 FIRST FINANCIAL MANAGEMENT CORP. 0928 LOW COUNTRY CARRIER dba HARGRAY L.D. CO.0842 WORLD ACCESS COMMUNICATIONS CORP. (WACC) 0929 STENOCALL0843 ADVANCED TELECOM SYSTEMS 0930 PILGRIM TELEPHONE INC.0844 PREFERRED TELECOM, INC. 0931 L.D. NETWORK, INC.0845 TELECABLE CORPORATION 0932 MIDTEL LONG DISTANCE MINOT0846 WORLDCOM, INC. 0933 NORTH AMERICAN COMMUNICATIONS, INC.0847 VIP CONNECTIONS, INC. 0934 COMCENTRAL dba SOUTHNET SERVICES, INC.0848 TRESCOM U.S.A., INC. 0935 FIRST CHOICE LONG DISTANCE, INC.0849 TALTON TELECOMMUNICATIONS CORP. 0936 INTERAMERICAN TELEPHONE CO. (ITC)0851 UTEL-CALL 0937 ACCESS LONG DISTANCE0852 TELECOM*USA [MCI] 0938 WESTCOM, INC. (WESTERN TELECOM, INC.)0853 DIGITAL NETWORK, INC. 0939 VISTA-UNITED TELECOMMUNICATIONS0855 UNION TELEPHONE COMPANY 0940 NEW ENGLAND TELEDISCOUNT SYSTEMS, INC.0856 CFW NETWORK, INC. 0941 U.S. FIBERCOM0857 TELECOM*USA [MCI] 0942 QCC, INC.0858 AT&T CANADA LONG DISTANCE SERVICES CO. 0943 INTERNATIONAL CELLULAR, INC. (ICI)0859 VALU-LINE OF LONGVIEW, INC. 0945 NEW TIMES, INC.0860 METRO TELECOMM.SVCS.,INC. dba METROCOMM 0946 WESTINGHOUSE ELECTRIC CORPORATION0861 TELCO HOLDINGS, INC. 0947 JSM TELE-PAGE0862 WORLDCOM, INC. 0948 SWITCHED SERVICE COMMUNICATIONS0864 T-ONE COMMUNICATIONS CO. 0949 COMMONWEALTH OF PENNSYLVANIA0865 EXPRESS COMMUNICATIONS, INC. 0950 DEPARTMENT OF THE TREASURY, IRS

28



CODE ASSIGNED TO CODE ASSIGNED TO0951 WORLDCOM, INC. 5037 FIBERNET, INC.0952 ECONOCOM LONG DISTANCE 5039 FREEDOM TELECOMMUNICATIONS INC.0953 WORLDCOM, INC. 5040 BROWN SERVICE COMPANY0954 PRIME TIME COMMUNICATIONS 5041 NET-TEL CORPORATION0955 UNITED COMMUNICATIONS, INC. 5042 FAR POINT0956 CITY TELECOM INC. (CITI) 5043 ANANDA WORLD BROTHERHOOD VILLAGE0957 WESTERN TELECOMMUNICATION, INC. (WTCI) 5044 NORTH AMERICAN TELEPHONE NETWORK, INC.0958 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 5045 KLP, INC. dba CALL-AMERICA0959 MID-PLAINS TELEPHONE, INC. 5046 SPRINT METROPOLITAN NETWORK, INC.0960 LONDON TELECOM 5047 HLC INTERNET0961 TELEPHONE SYSTEMS OF GEORGIA 5048 ACSI (AMERICAN COMMUNICATIONS SERVICES, INC.)0962 GULF LONG DISTANCE, INC. 5049 ATLANTIC CELLULAR CO., L.P. dba ATLANTIC LONG DISTANCE0963 CAPITAL TELECOMMUNICATIONS, INC. 5050 BELL ATLANTIC COMMUNICATIONS, INC.0964 INTERSTATE TELECOM SVCS. INC. 5051 INTER-TEL NETSOLUTIONS0965 HOGAN COMMUNICATIONS 5052 FIVE AREA LONG DISTANCE0966 AUC COMMUNICATIONS 5053 DEKALB TELEPHONE COOPERATIVE INC.0967 POLAR COMMUNICATIONS CORP. 5054 WILTON LONG DISTANCE0968 4JV ENTERPRISES, INC. 5057 WEBSTER-CALHOUN LONG DISTANCE (WEB-CAL LD)0969 WORLDCOM, INC. 5060 LDCC, INC.0971 QUEST TELECOMMUNICATIONS, INC. 5061 INFO-TEL COMMUNICATIONS INC.0972 SPECTRANET, INC. 5062 XCOM TECHNOLOGIES0973 UNIVERSAL TELEPHONE & TELEGRAPH 5063 COMINEX0974 CARIBSAT TELECOMMUNICATIONS, INC. 5067 BRAZOS LONG DISTANCE0975 AMERITEL LONG DISTANCE, INC. 5070 ASSOCIATED TELEPHONE DESIGN, INC.0976 PREFERRED NETWORK 5071 AXCES, INC.0977 TELEPHONE COMMUNICATIONS CORPORATION 5072 PACIFIC BELL0978 WESTEL TELECOMMUNICATIONS, LTD. 5079 PREFERRED CARRIER SERVICES (PCS)0979 VORTEL COMMUNICATIONS, INC. 5100 THE CORCORAN GROUP0981 WARWICK VALLEY LONG DISTANCE CO., INC. 5101 INTERCONTINENTAL COMMUNICATIONS CORP.0983 STAR TEL OF VICTORIA, INC. 5102 TELENATIONAL COMMUNICATIONS0984 STAR TEL TRANSMISSION CO., INC. 5103 RESERVE LONG DISTANCE0985 TELECORP INTERNATIONAL 5104 PAYPHONE CONSULTANTS, INC. (PCI)0986 MCI 5105 DISCOUNT PLUS0987 WORLDCOM, INC. 5106 THE V.I.P. PHONE CLUB, INC.0988 AT&T EASYLINK SERVICES 5107 KANOKLA COMM.S, INC.dba KANOKLA LONGDISTANCE0989 KRB TELECOM 5108 ASSOCIATED NETWORK PARTNERS, INC. (ANPI)0991 ACCESS LONG DISTANCE 5109 LIGHTCOM INTERNATIONAL0993 SOUTHWEST UNITED COMMUNICATION,INC 5110 NYNEX0994 TOUCH AMERICA, INC. 5111 TELEPHONE ECONOMY LEAGUE0995 WORLDCOM, INC. 5112 TELSCAPE INTERNATIONAL, INC.0996 MIDCO COMMUNICATIONS 5113 RESIDENTIAL COMMUNICATIONS NETWORK0997 GAS COMPANY OF NEW MEXICO 5114 ARAMTEL0998 THE COMMUNIGROUP OF KC 5115 BROOKS FIBER COMMUNICATIONS0999 WORLDCOM, INC. 5116 SEQUEL COMMUNICATIONS, INC.

5001 MH COMMUNICATIONS, INC. 5117 ADAMS TELSYSTEMS, INC. 5004 RAPID LINK, U.S.A., INC. 5118 GREAT LAKES TELECOMMUNICATIONS (GLTC) 5005 U S TELESERVICES, INC. 5119 NEXTLINK 5006 BAY AREA TELEPORT 5120 EASTERN TELELOGIC CORPORATION 5007 EGYPTIAN COMMUNICATIONS SERVICES, INC. 5121 CCT (CALIFORNIA CATALOG AND TECHNOLOGY) 5008 US ONE COMMUNICATIONS CORP. 5122 EQUALNET CORPORATION 5009 EQUALITY PLUS TELECOMMUNICATIONS 5123 U S WEST COMMUNICATIONS 5010 PRE-PAY U.S.A. INC. 5124 BELLSOUTH TELECOMMUNICATIONS, INC. 5011 JONES COMMUNICATIONS, INC. 5125 TELECARE, INC. 5012 ARRIVA COMMUNICATIONS, INC. 5126 COMSAT 5013 LANSER TELECOM, INC. 5127 CHOICE 1 COMMUNICATIONS 5014 THE FURST GROUP, INC. 5128 CALL FOR LESS 5015 GATEWAY COMMUNICATIONS, LTD. 5129 CARIBE COMMUNICATIONS, INC. 5016 KTNT COMMUNICATIONS 5130 ELLTEL WIRELESS 5017 AMADEUS COMMUNICATIONS 5131 PACIFIC TELECOM, INC. (PTI) 5018 BRAHAMS COMMUNICATIONS 5132 BRINDLEE MOUNTAIN TELEPHONE COMPANY 5019 DVORAK 5133 CBG, INC. 5020 FRIENDLY VOICE NETWORK 5134 ATLAS COMMUNICATIONS, LTD. 5021 HERITAGE COMMUNICATIONS 5135 IXC LONG DISTANCE, INC. (IXC LD) 5022 WEEKS COMMUNICATIONS, INC. 5136 I DON'T KNOW 5023 SELECT COMMUNICATIONS 5137 IT DOESN'T MATTER 5024 INTERSTATE OPERATORS, INC. 5138 WHO EVER 5025 RYAN COMMUNICATIONS, INC. 5139 BAY TNT NETWORK 5026 NATIONAL FIBER COM, INC. 5140 ANYONE IS OKAY 5027 AMERICAN FIBER COM, INC. 5145 COMLITE, INC. 5028 AMERICAN FIBERNET, INC. 5148 SOUTH SLOPE COOPERATIVE TELEPHONE CO., INC. 5029 J B OPERATORS, INC. 5151 LOTEL CO. INC. 5030 MOUNTAINVIEW COMMUNICATIONS, INC. 5165 TELEPHONE ASSOCIATES 5031 INTERNATIONAL OPERATORS, INC. 5168 NORTH AMERICAN COMMUNICATIONS CONTROL, INC. 5032 MORNINGSTAR COMMUNICATIONS, INC. 5172 DMI COMMUNICATIONS GROUP, INC. 5033 REA LONG DISTANCE 5173 MID-MAINE TELPLUS dba MID-MAINE LONG DISTANCE 5034 SIGNATURE NETWORK SERVICE 5175 WINSTAR 5035 ADVANCED TELECOM, INC. 5177 ATLAS EQUITY, INC. dba PERFORMANCE TELECOM 5036 COMMONWEALTH TELECOM, INC. 5200 TREAS RESOURCES INTL. CORP. dba TRI COMMS. NETWORK

29



CODE ASSIGNED TO CODE ASSIGNED TO 5202 HART COMMUNICATIONS, INC. dba HART TEL. LONG DISTANCE 5423 CITIZENS LONG DISTANCE CO. 5203 WOODBURY TELEPHONE COMPANY 5426 HIGHLAND COMMUNICATIONS CORP. 5212 CABLE & WIRELESS, INC. 5430 URSUS TELECOM CORP. 5213 CABLE & WIRELESS, INC. 5431 AGT LIMITED 5214 CABLE & WIRELESS, INC. 5432 G.E. EXCHANGE 5221 CORRECTIONAL COMMUNICATIONS CORPORATION, INC. 5433 PRO-LIFE NETWORK, L.L.C. 5223 STAR TELECOMMUNICATIONS, INC. 5434 ARKLA LONG DISTANCE ADVANTAGE 5225 CITIZENS TELEPHONE COOPERATIVE - IXC 5436 GEOTEL COMMUNICATION SERVICES, INC. 5226 BC TEL 5443 GLOBALCOM, INC. 5227 TCAST COMMUNICATIONS, INC. 5444 I DON'T CARE 5228 ATLAS COMMUNICATIONS & TELEPHONE C.D., INC. 5445 CONNECTICUT TELEPHONE & COMM. SYSTEMS, INC. 5229 MOUNTAIN WEST LONG DISTANCE 5448 GTE INTERNAL TELECOMMUNICATION SERVICES 5230 US LEC OF NORTH CAROLINA, L.L.C. 5450 UNICOM, INC. 5233 SOUTHWESTERN BELL TELEPHONE 5453 GROUP LONG DISTANCE, INC. 5234 CCI PR RSA, INC. 5454 BEV-R ENTERPRISES INC, T/A TOUCHTONE COMMS. 5235 ONE STOP COMMUNICATIONS 5455 MERIDIAN TELECOM CORPORATION 5244 ATHENA INTERNATIONAL L.L.C. 5456 CALTECH INTERNATIONAL TELECOM CORPORATION 5248 AMERICAN INTERNATIONAL TELEPHONE 5463 ACOMM, INC. 5249 GTE TELEPHONE OPERATIONS 5465 PACIFIC BELL 5250 CRYSTAL COMMUNICATIONS, INC. 5468 INTERACTIVE NETWORK SYSTEM, INC. (INET) 5252 TRI-COUNTY LONG DISTANCE 5473 ACC LONG DISTANCE CORPORATION 5253 ALLTEL LONG DISTANCE 5475 AMERITECH 5254 WORLD WIDE CONNECT, INC. 5476 GRANITE STATE LONG DISTANCE 5255 LEAST COST ROUTING dba LONG DISTANCE CHARGES 5478 GST PACWEST TELECOM, INC. 5256 TRANSACT DATA SERVICES, INC. 5482 HTC COMMUNICATIONS CO. 5257 FARMERS MUTUAL COOPERATIVE TELEPHONE CO. 5483 GTE CARD SERVICES INC. dba GTE LONG DISTANCE 5258 TELCOM NETWORK, INC. (TNI) 5484 HORIZON TELECOMMUNICATIONS, INC. 5259 FARMERS MUTUAL TELEPHONE CO. 5485 GLENNERIC COMMUNICATIONS, INC. 5260 CITIZENS MUTUAL TELEPHONE COMPANY 5487 INTEGRATED TELESERVICES, INC. 5261 BASCOM LONG DISTANCE 5500 ESS VENTURES, INC. 5262 CST COMMUNICATIONS, INC. 5501 SATELLITE COMMUNICATIONS SYSTEMS, INC. 5263 ACCESS/ON MULTIMEDIA, INC. 5510 UNIVERSAL TELECOM, INC. 5264 ACCESS WORLD COMMUNICATION 5511 CIMCO COMMUNICATIONS 5265 DISCOUNT LONG DISTANCE 5512 CITIZENS TELECOM 5266 WORLD LINK, INC. 5515 CELLNET COMMUNICATIONS CORPORATION 5267 CMS COMMUNICATIONS 5519 INCLINE COMMUNICATIONS, INC. 5268 JUSTICE LONG DISTANCE, INC. 5520 HOME LONG DISTANCE, INC. 5277 WILTON TELEPHONE COMPANY 5522 TELAPEX LONG DISTANCE, INC. 5279 EASY CELLULAR 5523 VALUE TEL 5282 CHIBARDUN TELEPHONE COOPERATIVE, INC. 5524 LEGAL AID SOCIETY OF ORANGE COUNTY 5284 CENTRAL TELECOM, INC. 5532 LACKAWAXEN LONG DISTANCE CO. 5288 MICHIGAN INDEPENDENT NETWORK, INC. 5535 LAKEDALE LINK, INC. 5292 ALL WEST/WORLD CONNECT 5536 PRTC COMPETITIVE SVCS. LDC 5296 RGDATA, INC. 5548 LAUREL HIGHLAND LONG DISTANCE CO. 5297 SIMPLY LONG DISTANCE, INC. (SLD) 5551 BRITTAN COMMUNICATIONS INTERNATIONAL CORP. (BCI) 5300 CINCINNATI BELL TELEPHONE 5553 LAKEFIELD COMMUNICATIONS, INC. 5303 CANADIAN TIRE ACCEPTANCE LTD. 5555 TELECOM ONE 5310 NORTHERN TELEPHONE & DATA (NTF) 5556 BAY SPRINGS LONG DISTANCE 5316 DIRECT NET TELECOMMUNICATIONS 5559 COOPERATIVE COMMUNICATIONS, INC. 5317 TRANS-WORLD TELECOM 5566 M.T. CORPORATION 5318 INTERNATIONAL TELECOMMUNICATION CORP. 5571 CHAUTAUQUA & ERIE COMMUNICATIONS, INC. 5319 5 STAR TELECOM 5577 NETWORK CARRIER SERVICES 5320 IPC IXNET 5588 GLOBAL RATE PROCESSING 5321 LDC TELECOMMUNICATIONS, INC. 5599 PHONE MICHIGAN 5322 BC TEL 5600 PHOENIX NETWORK 5323 CHARITON VALLEY LONG DISTANCE CORPORATION 5606 AMERITECH 5324 EASTGATE COMMUNICATIONS, INC. (ECI) 5608 THE LONG DISTANCE PARTNERSHIP, L.P. 5326 FBN AMERICA, INC. 5617 TELECOMMUNICATIONS CORPORATION OF AMERICA (TCA) 5327 STATE TELEPHONE LONG DISTANCE 5632 PRIME LINE COMMS. dba PRIME LINK LONG DISTANCE, INC. 5328 BERKSHIRE LONG DISTANCE 5633 MADISON NETWORK SYSTEMS, INC. 5329 MTC LONG DISTANCE 5635 NORTH DAKOTA LONG DISTANCE 5331 HEART OF IOWA COMMUNICATIONS, INC. 5646 TELEBERMUDA INTERNATIONAL LIMITED (TBI) 5332 NETWORK RECOVERY SERVICES, INC. 5653 NLD, USA 5333 PARTNER COMMUNICATIONS GROUP 5655 WEST RIVER LONG DISTANCE 5334 LONG DISTANCE DIRECT, INC. 5656 TOUCH TONE AMERICA, INC. 5335 DELTATEL, INC. 5657 CELLULAR 29 PLUS 5353 ATU LONG DISTANCE, INC. 5665 FRESH START COMMUNICATIONS - FSC 5357 CL TEL LONG DISTANCE, INC. 5672 WESTINGHOUSE ELECTRIC CORPORATION 5367 KINNET 5673 WESTINGHOUSE ELECTRIC CORPORATION 5368 AIR PULSE, INC. 5675 CASCADE TELEPHONE COMPANY 5375 NORTHWESTERN INDIANA TELEPHONE CO. 5678 FORT BEND LONG DISTANCE 5377 PAYLESS LONG DISTANCE, LTD 5679 NORTH PITTSBURGH TELEPHONE COMPANY 5380 AIR TOUCH CELLULAR 5680 NETWORK ENHANCED TECHNOLOGIES, INC. (NET) 5381 HEALTH LIABILITY MANAGEMENT 5681 STATE OF CA. HEALTH & WELFARE AGENCY DATA CENTER 5383 ETEX LONG DISTANCE dba ETEX CELLULAR CO., INC. 5682 METROTIME COMMUNICATIONS 5385 NATIONAL TELCOM MANAGEMENT INC 5683 PRIMETEL COMMUNICATIONS, INC. 5393 INTERMEDIA COMMUNICATIONS, INC. 5688 AMERICATEL 5422 HCC TELEMANAGEMENT 5689 MTX COMMUNICATIONS

30



CODE ASSIGNED TO CODE ASSIGNED TO 5692 TACONIC TELCOM CORP. 5929 KNOX SERVICE GROUP 5697 EMPIRE COMMUNICATIONS SERVICES CORPORATION 5930 EXCO LONG DISTANCE 5698 INTERNATIONAL TELECOM, INC. (ITI) 5931 APPLEGATE LONG DISTANCE 5711 KING SALMON COMMUNICATIONS, INC. 5933 ZIMMER WAY 5712 DATACOMM INTERNATIONAL CO. LTD. 5934 MUSTANG OPERATORS 5714 GLOBAL TONE COMMUNICATIONS, INC. 5935 RIVERBEND COMMUNICATIONS 5715 CHEQUAMEGON TELEPHONE COOPERATIVE, INC. 5936 POLLOCK LD SERVICE 5722 SOUTHWESTERN BELL TELEPHONE 5937 LD BRUCE 5728 THRIF-TCOMM 5938 WEYMOUTH SERVICE 5737 DOBSON WIRELESS, INC. 5939 FOREST PINE TELCOM 5738 SOUTHEAST TELEPHONE, LTD. 5940 FLEMING LONG DISTANCE 5739 BROADCAST MEDIA SATELLITE 5941 KBTN 5753 SHERBURNE LONG DISTANCE, INC. 5942 CHRISTINE LD SERVICE 5756 GST TELECOM, INC. 5943 ALERT OPERATORS 5757 800 & LONG DISTANCE SERVICES 5946 WABASH INDEPENDENT NETWORKS 5758 PAYLESS TELECOM, INC. 5953 BLUE MOUNTAIN CELLULAR (BMCT) dba CELLULARONE 5759 VALULINE LONG DISTANCE 5957 UNI DIAL 5762 MIKROTEC INTERNET SERVICES, INC. 5958 STARGATE COMMUNICATIONS, INC. 5765 MARNE & ELK HORN TELEPHONE CO. 5959 OGDEN TELEPHONE LONG DISTANCE 5772 FTI COMMUNICATIONS 5969 U.S. CELLULAR CORP. 5775 UNION TELEPHONE CO. 5970 INFONET LONG DISTANCE, L.L.C 5777 APOLLO TELECOM 5971 C-NET COMMUNICATIONS 5784 MARIANNA-SCENERY HILL LONG DISTANCE CO. 5972 U.S. ROBOTICS 5787 COOPERATIVE TELEPHONE COMPANY 5973 C R TELCO, INC.,dba CAP ROCK TELECOMM. 5788 PRESTON ENTERPRISE, INC. 5976 CONCORD TELEPHONE COMPANY, INC. 5789 QUESTAR INFOCOMM INCORPORATED 5978 WORLD TELECOMMUNICATIONS SERVICES, INC. 5792 SOUTHWESTERN BELL TELEPHONE 5980 OVERLOOK COMMUNICATIONS INTERNATIONAL 5795 CAPROCK TELEMANAGEMENT 5981 TRANS GLOBAL COMMUNICATIONS, INC. 5797 NTI TELECOM, INC. 5982 U.S. AMERITEL 5798 BRAZORIA LONG DISTANCE CO. 5983 ONEONTA TELEPHONE CO., INC. 5800 NORTHEAST TELEPHONE LONG DISTANCE, INC. 5993 CENTRAL TEXAS COMMUNICATIONS, INC. 5810 ATI TELECOM, INC. 5999 ZENEX LONG DISTANCE, INC. 5820 CELLCOM 6001 DHC, INC. 5821 CRYSTAL COMMUNICATIONS 6010 MFS INTELENET, INC. 5826 VANCOUVER TELEPHONE COMPANY LTD. 6011 MFS INTELENET, INC. 5830 GENESIS COMMUNICATIONS INT'L, INC. 6012 MFS INTELENET, INC. 5831 D.H. COMMUNICATIONS 6034 PANTEL COMMUNICATIONS 5835 FONETEL 6057 PALMER MUTUAL TELEPHONE CO. 5839 NPS, INC. 6060 TELEC, INC. 5840 HEBRON CORPORATION 6088 COLLECTIVE COMMUNICATION SERVICES, INC. 5841 VOICE TRACK CORPORATION 6100 BT TELECOM, INC. 5845 USA GLOBAL LINK 6101 HOST NETWORK, INC. 5847 PUBLIC SERVICE CELLULAR, INC. 6102 PCI 5852 MAT-TELL COMMUNICATIONS, INC. 6105 WINNEBAGO COOPERATIVE TELEPHONE ASSOCIATION (WCTA) 5853 VOLCANO LONG DISTANCE 6108 HANCOCK RURAL TELEPHONE CORPORATION 5858 SIERRA TELEPHONE LONG DISTANCE 6110 BELLSOUTH TELECOMMUNICATIONS, INC. 5864 TELEPACIFIC NETWORK, INC. 6111 TELEPOOL NETWORK, INC. 5869 T-NETIX, INC. 6123 AMERITECH 5872 NATIONWIDE PAGING, INC. 6150 THE SAN DIEGO TELEPHONE COMPANY 5874 TELECARRIER SERVICES, INC. 6161 WATS INTERNATIONAL CORPORATION 5876 CCI PR RSA, INC. 6205 BUSINESS PHONES 5877 U.S. SOUTH COMMUNICATIONS, INC. 6222 CABLE & WIRELESS BERMUDA 5878 US VOICE TELEMANAGEMENT, INC. 6224 GTE CARD SERVICES INC. dba GTE LONG DISTANCE 5880 CYBERNET COMMUNICATIONS 6225 IOWA NETWORK SERVICES, INC. 5882 THE TELEPHONE CONNECTION OF L.A., INC. 6232 NORTH AMERICAN DIGICOM CORPORATION 5885 VIATEL, INC. 6253 THE BENTLEYVILLE LONG DISTANCE COMPANY 5888 SUMMIT TELESERVICES 6255 INT'L. SERVICES NETWORK, INC. dba ISN COMMUNICATIONS 5892 TIME WARNER 6264 MIIC dba POLARIS TELCOM 5894 OKLAHOMA LONG DISTANCE 6265 DIGI COM 5895 METROTEL COMMUNICATIONS 6268 CADETELCO, LLC dba ALL STATES TELEPHONE CO. 5910 COMMUNICATIONS TECHNOLOGY GROUP 6269 COX COMMUNICATIONS, INC. 5911 OLD HOME OPERATOR 6282 MARQUETTE-ADAMS TELEPHONE COOPERATIVE, INC. 5912 OLD LAREDO SERVICE 6286 ADVANCED TELECOMMUNICATIONS NETWORK, INC 5913 SANDELL OPERATOR SERVICE 6288 MICROVOICE APPLICATIONS, INC. 5914 SUNRISE OPERATOR 6301 K&S INTERNATIONAL COMMUNICATIONS, INC. 5915 VERA LONG DISTANCE 6322 EARTHCALL COMMUNICATIONS CORPORATION 5916 WORLD WINDOW 6324 DIGI-CELL, INC. 5917 HICKORY GROVE GROUP 6325 NORTH STATE TELEPHONE LONG DISTANCE CO. 5918 WISTERIA LD SERVICE 6332 NORTHEAST FLORIDA LONG DISTANCE COMPANY, INC. 5919 ANDRIL SERVICE GROUP 6333 TELEGLOBE USA, INC. 5920 CALLUM LONG DISTANCE 6339 PREMIER COMMUNICATIONS, INC. 5922 BRYANT SERVICE 6356 MEGAWATS 5923 U SPEAK LONG DISTANCE 6360 360Ø LONG DISTANCE CO., INC. 5924 VIVA TEL LONG DISTANCE 6362 FOCAL COMMUNICATIONS CORP. 5925 HONE COMMUNICATIONS 6381 HICKORY TELEPHONE COMPANY 5926 MCV TELCOM 6383 PLANET COMMUNICATIONS GROUP 5927 BARTS LD GROUP 6384 EASTERN TELECOMMUNICATIONS INC. (ETI) 5928 MINH LONG DISTANCE 6398 NEXTEL COMMUNICATIONS

31



CODE ASSIGNED TO 6400 BETHANY TELECOM 6401 COMTEL TECH 6402 SISK COMMUNICATIONS 6403 REGENCY LONG DISTANCE 6404 FASTLINE COMMUNICATION NETWORK 6405 IACT 6406 INDICOM 6407 GALA COMMUNICATIONS 6408 FAIRVIEW TELECOM 6409 DIAMOND COMMUNICATIONS 6410 ST. PIERRE COMMUNICATION NETWORK 6411 LONG DISTANCE ASSISTANCE 6412 FUTURE CONNECT 6413 SAVEMORE NETWORK 6414 TELENET COMMUNICATIONS 6419 LEWIS COMMUNICATIONS 6420 RKS COMMUNICATIONS 6423 INTER DIVISION COMM 6424 HELMSCO, INC. dba. CENTRAL LINK COMM. 6437 IDS LONG DISTANCE, INC. 6444 TELEHUB COMMUNICATIONS CORPORATION 6464 ORLANDO DIGITAL TELEPHONE CORP. 6483 IT&E OVERSEAS, INC. 6484 HYPERION TELECOMMUNICATIONS INC. 6486 CENTURION INTELNET 6488 ACCESS TELECOM 6500 BELL ATLANTIC NETWORK SERVICES, INC. 6543 DISCOUNT NETWORK SERVICES, INC. (DNS) 6565 SWISHER TELEPHONE COMPANY 6600 LDM SYSTEMS, INC. 6611 TRINET 6634 CANNON COMMUNICATIONS CORPORATION 6644 PYMATUNING INDEPENDENT TELEPHONE COMPANY 6665 NEW NORTH TELECOMMUNICATIONS, INC. 6666 S.F.C. ENTERPRISES 6673 CURRY COMMUNICATIONS, INC. 6674 MANAGED NETWORK SYSTEMS, INC. 6678 XTRACOM, INC. 6682 MICRONESIAN TELECOMMUNICATIONS CORPORATION (MTC) 6699 WCTC ALL DISTANCE 6715 CITIZENS TELEPHONE COOPERATIVE, INC. 6722 PBC LONG DISTANCE 6738 SOUTHEASTERN NETWORK SERVICES 6746 THE PHONE COMPANY 6753 CORPORATE SERVICES TELCOM 6763 SOUTHERN NEW ENGLAND TELEPHONE (SNET) 6767 PREMIERE COMMUNICATIONS 6777 CABLE PLUS dba TELEPHONE PLUS 6778 SPRING VALLEY TELEPHONE LONG DISTANCE 6782 SMITHVILLE TELEPHONE CO., INC. 6788 WORLDCALL COMMUNICATIONS INTERNATIONAL, INC. 6795 ORWELL TELEPHONE COMPANY 6796 AMERICAN MOBILE SATELLITE CORP. 6798 DANCRIS COMM. LLC 6835 NEW CENTURY TELECOM, INC. 6836 MCSC ACCESS IN CANADA (CSCN) 6840 BALDWIN CELLCOM, INC. 6853 UTC LONG DISTANCE, L.L.C. 6864 AMERICAN BUSINESS ALLIANCE (ABA) 6870 AMERICOM TECHNOLOGIES, INC. dba NETWORK UTILIZ. SVC. 6872 USA PAGING 6878 INFONXX 6880 AWESOME PAGING, INC. 6885 VIDEOTRON TELECOM LTEE. 6887 THE TELEPHONE CONNECTION OF L.A., INC. 6888 BUSINESS LONG DISTANCE 6892 TIME WARNER 6920 FULL SERVICE COMPUTING 6922 NORTHWEST COMMUNITY COMMUNICATIONS, INC. 6937 GERMANTOWN LONG DISTANCE 6942 XIT COMMUNICATIONS 6953 NYNEX 6963 NYNEX 6964 TOTAL TELECOMMUNICATIONS SVCS., INC. 6969 STERLING TELECOMMUNICATIONS, INC. 6981 WARWICK VALLEY TELEPHONE CO. 6999 NETWORK SERVICES LONG DISTANCE

32

TABLE 5LIST OF FGD CIC CODE ASSIGNMENTS


CODE ASSIGNED TO CODE ASSIGNED TO0207 2JE TELECOMMUNICATIONS 0470 AMERICAN TEL GROUP, INC. 6360 360Ø LONG DISTANCE CO., INC. 0366 AMERICAN TELCO, INC.0968 4JV ENTERPRISES, INC. 0663 AMERICAN TELCO, INC. 5319 5 STAR TELECOM 0813 AMERICAN TELECOMMUNICATIONS ENTERPRISES 5757 800 & LONG DISTANCE SERVICES 0573 AMERICAN TELECOMMUNICATIONS HOLDING LTD.0118 A & N TELECOM 0624 AMERICAN TELESOURCE INTERNATIONAL, INC.0557 ABC TELECOM, INC. 0307 AMERICAN TELNET, INC.0316 ABCO COMMUNICATIONS, INC. 5688 AMERICATEL 5473 ACC LONG DISTANCE CORPORATION 0567 AMERICOM COMMUNICATIONS0234 ACC LONG DISTANCE CORPORATION 6870 AMERICOM TECHNOLOGIES, INC. dba NETWORK UTILIZ. SVC.0345 ACC LONG DISTANCE CORPORATION 0192 AMERINET COMMUNICATIONS0937 ACCESS LONG DISTANCE 0362 AMERISYSTEMS, INC.0991 ACCESS LONG DISTANCE 5475 AMERITECH0137 ACCESS NETWORK SERVICES, INC. 5606 AMERITECH0013 ACCESS SERVICES dba PACIFIC NW TELECOM 6123 AMERITECH 6488 ACCESS TELECOM 0113 AMERITECH LONG DISTANCE SERVICES 5264 ACCESS WORLD COMMUNICATION 0794 AMERITEL0551 ACCESS-PLUS, INC. 0416 AMERITEL C/O NETWORK TELEPHONE SVCS, INC. 5263 ACCESS/ON MULTIMEDIA, INC. 0975 AMERITEL LONG DISTANCE, INC. 5463 ACOMM, INC. 0284 AMERIVISION COMMUNICATIONS, INC. 5048 ACSI (AMERICAN COMMUNICATIONS SERVICES, INC.) 0617 AMVOX0282 ACTION TELCOM CO. 5043 ANANDA WORLD BROTHERHOOD VILLAGE 5117 ADAMS TELSYSTEMS, INC. 5919 ANDRIL SERVICE GROUP0414 ADDTEL COMMUNICATIONS 5140 ANYONE IS OKAY0927 ADVANCED RADIO COMMUNICATIONS SYSTEMS 5777 APOLLO TELECOM0843 ADVANCED TELECOM SYSTEMS 0095 APPLE COMMUNICATIONS 6286 ADVANCED TELECOMMUNICATIONS NETWORK, INC 5931 APPLEGATE LONG DISTANCE 5035 ADVANCED TELECOM, INC. 0256 APPLIED SIGNAL CORPORATION0239 ADVANTAGE COMMUNICATIONS GROUP, INC. 5114 ARAMTEL0754 ADVANTIS 0644 ARCADA COMMUNICATIONS0755 ADVANTIS 0304 ARCH TELECOM0772 ADVANTIS 5434 ARKLA LONG DISTANCE ADVANTAGE0790 AFFILIATED TELECOM SVCS. INC. 5012 ARRIVA COMMUNICATIONS, INC. 5431 AGT LIMITED 0139 ASCENDING TECHNOLOGIES0424 AGT LIMITED 0809 ASIA INTERNATIONAL SERVICES CORP. (AIC) 5368 AIR PULSE, INC. 5108 ASSOCIATED NETWORK PARTNERS, INC. (ANPI) 5380 AIR TOUCH CELLULAR 0279 ASSOCIATED TELENET INC./ A CTI COMPANY0866 ALASCOM, INC. 5070 ASSOCIATED TELEPHONE DESIGN, INC. 5943 ALERT OPERATORS 0144 ASSOCIATION COMM.0579 ALIANT SYSTEMS, INC. 5244 ATHENA INTERNATIONAL L.L.C. 5292 ALL WEST/WORLD CONNECT 0822 ATHENA INTERNATIONAL L.L.C.0075 ALLCOMM LONG DISTANCE, INC. 5810 ATI TELECOM, INC.0182 ALLGOOD TAYLOR TELEPHONE 5049 ATLANTIC CELLULAR CO., L.P. dba ATLANTIC LONG DISTANCE0066 ALLNET 0125 ATLANTIC TELEPHONE COMPANY, INC.0539 ALLNET 5228 ATLAS COMMUNICATIONS & TELEPHONE C.D., INC.0044 ALLNET COMM. SVC., INC. [LDX,LEXITEL] 5134 ATLAS COMMUNICATIONS, LTD.0444 ALLNET COMM. SVC., INC. [LDX,LEXITEL] 5177 ATLAS EQUITY, INC. dba PERFORMANCE TELECOM 5253 ALLTEL LONG DISTANCE 0730 ATNT OF UNITED BUSINESS & COMM. SVCS.0119 ALO-USA CORP. 0287 ATS NETWORK COMMUNICATIONS0405 ALTERNATE COMMUNICATIONS TECHNOLOGY, INC. 5353 ATU LONG DISTANCE, INC.0760 ALTERNATIVE LONG DISTANCE, INC. 0004 ATX TELECOMMUNICATIONS SERVICES0413 ALTERNATIVE LONG DISTANCE, INC. dba MONEY $AVERS 0686 AT&T CANADA LONG DISTANCE SERVICES CO. 5017 AMADEUS COMMUNICATIONS 0858 AT&T CANADA LONG DISTANCE SERVICES CO.0682 AMERICALL COMMUNICATIONS 0869 AT&T CANADA LONG DISTANCE SERVICES CO. 6864 AMERICAN BUSINESS ALLIANCE (ABA) 0288 AT&T COMMUNICATIONS0145 AMERICAN COMMUNICATIONS INT'L, LTD. 0387 AT&T COMMUNICATIONS0061 AMERICAN COMMUNICATIONS NETWORK, INC. 0732 AT&T COMMUNICATIONS0645 AMERICAN COMMUNICATIONS TECHNOLOGY, INC. 0375 AT&T EASYLINK SERVICES0598 AMERICAN DISCOUNT TELECOMMUNICATIONS, INC. 0988 AT&T EASYLINK SERVICES0411 AMERICAN EXPRESS TRAVEL RELATED SVCS. 0314 AT&T WIRELESS SERVICES, INC. 5027 AMERICAN FIBER COM, INC. 0966 AUC COMMUNICATIONS 5028 AMERICAN FIBERNET, INC. 0302 AUSTIN BESTLINE 5248 AMERICAN INTERNATIONAL TELEPHONE 0235 AUTOMATED TELEPHONE0028 AMERICAN LONG DISTANCE CORPORATION 0779 AUTUMN COMMUNICATIONS, INC.0540 AMERICAN LONG DISTANCE EXCHANGE, INC. 6880 AWESOME PAGING, INC.0504 AMERICAN LONG DISTANCE SERVICES 5071 AXCES, INC.0241 AMERICAN LONG LINES 6840 BALDWIN CELLCOM, INC. 6796 AMERICAN MOBILE SATELLITE CORP. 5927 BARTS LD GROUP0370 AMERICAN NETWORK EXCHANGE, INC. 5261 BASCOM LONG DISTANCE

33



CODE ASSIGNED TO CODE ASSIGNED TO 5006 BAY AREA TELEPORT 0670 CAMERON LONG DISTANCE 5556 BAY SPRINGS LONG DISTANCE 0615 CAM-NET COMMUNICATIONS NETWORK, INC. 5139 BAY TNT NETWORK 0046 CAM-NET, INC.0129 BAYSTAR SATELLITE PAGING 5303 CANADIAN TIRE ACCEPTANCE LTD.

5226 BC TEL 6634 CANNON COMMUNICATIONS CORPORATION 5322 BC TEL 0425 CAPITAL NETWORK SYSTEMS INC.0323 BC TEL 0221 CAPITAL TELECOMMUNICATIONS, INC.0276 BEE LINE LONG DISTANCE 0723 CAPITAL TELECOMMUNICATIONS, INC.0243 BEEHIVE TELEPHONE 0963 CAPITAL TELECOMMUNICATIONS, INC.

5050 BELL ATLANTIC COMMUNICATIONS, INC. 5795 CAPROCK TELEMANAGEMENT0272 BELL ATLANTIC COMMUNICATIONS, INC. 0795 CAPROCK TELEMANAGEMENT0652 BELL ATLANTIC COMMUNICATIONS, INC. 0262 CARIB COMMUNICATIONS, L.P.

6500 BELL ATLANTIC NETWORK SERVICES, INC. 0383 CARIBBEAN TELEPHONE & TELEGRAPH, INC.0363 BELL CANADA 5129 CARIBE COMMUNICATIONS, INC.0187 BELLSOUTH LONG DISTANCE 0974 CARIBSAT TELECOMMUNICATIONS, INC.0377 BELLSOUTH LONG DISTANCE 0501 CARRIER CONCEPTS INTERNATIONAL CORP.

5124 BELLSOUTH TELECOMMUNICATIONS, INC. 5675 CASCADE TELEPHONE COMPANY 6110 BELLSOUTH TELECOMMUNICATIONS, INC. 5133 CBG, INC.0581 BEN LOMAND COMMUNICATIONS, INC. 5234 CCI PR RSA, INC.

5328 BERKSHIRE LONG DISTANCE 5876 CCI PR RSA, INC. 6400 BETHANY TELECOM 0788 C-COM 5454 BEV-R ENTERPRISES INC, T/A TOUCHTONE COMMS. 5121 CCT (CALIFORNIA CATALOG AND TECHNOLOGY)0867 BITTEL TELECOMMUNICATIONS CORPORATION 5820 CELLCOM0580 BIXBY TELEPHONE LONG DISTANCE CO. 0117 CELLNET0606 BIZ TEL LONG DISTANCE TELEPHONE CO. 5515 CELLNET COMMUNICATIONS CORPORATION0115 BKC TELECOMMUNICATIONS, INC. 0554 CELLTOLL CORPORATION

5953 BLUE MOUNTAIN CELLULAR (BMCT) dba CELLULARONE 5657 CELLULAR 29 PLUS0870 BLUE RIDGE TELEPHONE 0530 CELLULAR LONG DISTANCE CO. (CUL)0356 BLUEGRASS LONG DISTANCE, INC. 5284 CENTRAL TELECOM, INC.0622 BMG 0180 CENTRAL TELEPHONE CO.0037 BN1 TELECOMMUNICATIONS, INC. 5993 CENTRAL TEXAS COMMUNICATIONS, INC.0634 BOTTOM LINE TELECOMMUNICATIONS, INC. 6486 CENTURION INTELNET

5018 BRAHAMS COMMUNICATIONS 0672 CENTURY COMMUNICATIONS0836 BRANSON TELEPHONE 0550 CENTURY LONG DISTANCE

5798 BRAZORIA LONG DISTANCE CO. 0505 CENTURY TELECOMMUNICATIONS, INC. 5067 BRAZOS LONG DISTANCE 0914 CENTURY TELECOMMUNICATIONS, INC. 5132 BRINDLEE MOUNTAIN TELEPHONE COMPANY 0856 CFW NETWORK, INC. 5551 BRITTAN COMMUNICATIONS INTERNATIONAL CORP. (BCI) 0909 CHADWICK TELEPHONE 5739 BROADCAST MEDIA SATELLITE 5323 CHARITON VALLEY LONG DISTANCE CORPORATION 5115 BROOKS FIBER COMMUNICATIONS 5571 CHAUTAUQUA & ERIE COMMUNICATIONS, INC. 5040 BROWN SERVICE COMPANY 0571 CHAUTAUQUA & ERIE COMMUNICATIONS, INC. 5922 BRYANT SERVICE 5715 CHEQUAMEGON TELEPHONE COOPERATIVE, INC. 6100 BT TELECOM, INC. 0270 CHERRY COMMUNICATIONS0368 BUDGET CALL LONG DISTANCE 0343 CHESTER LONG DISTANCE SERVICES, INC.0112 BUSINESS DISCOUNT PLAN dba LD DISCOUNT PLAN 5282 CHIBARDUN TELEPHONE COOPERATIVE, INC.

6888 BUSINESS LONG DISTANCE 0467 CHICKASAW LONG DISTANCE CO. 6205 BUSINESS PHONES 5127 CHOICE 1 COMMUNICATIONS0833 BUSINESS TELECOM, INC. 5942 CHRISTINE LD SERVICE0791 B.R. COMMUNICATIONS 5511 CIMCO COMMUNICATIONS

5973 C R TELCO, INC.,dba CAP ROCK TELECOMM. 0286 CINCINNATI BELL LONG DISTANCE 6777 CABLE PLUS dba TELEPHONE PLUS 0293 CINCINNATI BELL LONG DISTANCE 6222 CABLE & WIRELESS BERMUDA 0614 CINCINNATI BELL LONG DISTANCE0223 CABLE & WIRELESS COMMUNICATIONS, INC. 0654 CINCINNATI BELL LONG DISTANCE0839 CABLE & WIRELESS COMMUNICATIONS, INC. 5300 CINCINNATI BELL TELEPHONE

5212 CABLE & WIRELESS, INC. 5423 CITIZENS LONG DISTANCE CO. 5213 CABLE & WIRELESS, INC. 5260 CITIZENS MUTUAL TELEPHONE COMPANY 5214 CABLE & WIRELESS, INC. 5512 CITIZENS TELECOM0819 CABLEVISION LIGHTPATH, INC. 0038 CITIZENS TELECOM

6268 CADETELCO, LLC dba ALL STATES TELEPHONE CO. 0096 CITIZENS TELECOM0300 CALL AMERICA 5225 CITIZENS TELEPHONE COOPERATIVE - IXC0351 CALL AMERICA OF RIVERSIDE 6715 CITIZENS TELEPHONE COOPERATIVE, INC.0410 CALL AMERICA/PALM DESERT 0956 CITY TELECOM INC. (CITI)

5128 CALL FOR LESS 0774 CITYNET COMMUNICATIONS, INC.0259 CALL FOR LESS LONG DISTANCE 5357 CL TEL LONG DISTANCE, INC.0291 CALL SAVERS, INC. 0548 CLEARTEL COMMUNICATIONS0091 CALL TECHNOLOGY CORP. OF PHILADELPHIA 5267 CMS COMMUNICATIONS0715 CALL U.S.INCORPORATED 5971 C-NET COMMUNICATIONS

5920 CALLUM LONG DISTANCE 0063 COAST INTERNATIONAL, INC. 5456 CALTECH INTERNATIONAL TELECOM CORPORATION 0902 COAST TO COAST TELECOMMUNICATIONS

34



CODE ASSIGNED TO CODE ASSIGNED TO0492 COASTAL LONG DISTANCE SERVICES, INC. 6001 DHC, INC.0661 COASTAL TELEPHONE CO. 6409 DIAMOND COMMUNICATIONS0881 COASTAL TELEPHONE CO. 6265 DIGI COM

6088 COLLECTIVE COMMUNICATION SERVICES, INC. 6324 DIGI-CELL, INC.0306 COLORADO RIVER COMMUNICATIONS 0181 DIGITAL COMMUNICATIONS, INC.0619 COLORADO RIVER COMMUNICATIONS 0064 DIGITAL NETWORK SERVICES, INC.0197 COMANCHE COUNTY LONG DISTANCE 0071 DIGITAL NETWORK, INC.0934 COMCENTRAL dba SOUTHNET SERVICES, INC. 0143 DIGITAL NETWORK, INC.

5063 COMINEX 0586 DIGITAL NETWORK, INC. 5145 COMLITE, INC. 0853 DIGITAL NETWORK, INC.0748 COMMNET CELLULAR, INC. 0281 DIGITAL TECHNOLOGIES, INC.0336 COMMONWEALTH LONG DISTANCE CO. 0671 DIGITAL TELECOMMUNICATIONS, INC.0949 COMMONWEALTH OF PENNSYLVANIA 0543 DIGITRAN CORP.

5036 COMMONWEALTH TELECOM, INC. 5316 DIRECT NET TELECOMMUNICATIONS0339 COMMUNICATION CABLE LAYING CO., INC. 0814 DISCOUNT AMERICA0349 COMMUNICATION CABLE LAYING CO., INC. 5265 DISCOUNT LONG DISTANCE0675 COMMUNICATION SERVICES OF COLORADO 0354 DISCOUNT LONG DISTANCE OF AMERICA0640 COMMUNICATIONS BROKERS, INC. 6543 DISCOUNT NETWORK SERVICES, INC. (DNS)0667 COMMUNICATIONS INC.dba ECI 0082 DISCOUNT PAYPHONE0073 COMMUNICATIONS OPTIONS INC. 5105 DISCOUNT PLUS0065 COMMUNICATIONS SYSTEMS INTERNATIONAL 0123 DISCOVERY TELECOM, INC.

5910 COMMUNICATIONS TECHNOLOGY GROUP 5172 DMI COMMUNICATIONS GROUP, INC.0484 COMMUNITY LONG DISTANCE 5737 DOBSON WIRELESS, INC.0130 COMPUTER TELEPHONE CORP. 0514 DOMINICAN COMMUNICATIONS

5126 COMSAT 5019 DVORAK 6401 COMTEL TECH 0417 DWR LONG DISTANCE0238 COMWEST COMMUNICATIONS 5831 D.H. COMMUNICATIONS

5976 CONCORD TELEPHONE COMPANY, INC. 0594 EAGLECOM, INC.0893 CONCORD TELEPHONE LONG DISTANCE (CT LONG DISTANCE) 6322 EARTHCALL COMMUNICATIONS CORPORATION0541 CONETCO COMMUNICATIONS CORPORATION 0808 EASTERN TELECOM dba INTERQUEST0660 CONNECT AMERICA COMMUNICATIONS, INC. 0136 EASTERN TELECOM INTERNATIONAL0374 CONNECT AMERICOM CORP. 6384 EASTERN TELECOMMUNICATIONS INC. (ETI)

5445 CONNECTICUT TELEPHONE & COMM. SYSTEMS, INC. 5120 EASTERN TELELOGIC CORPORATION0257 CONQUEST 0303 EASTERN TELELOGIC CORPORATION0319 CONQUEST 0054 EASTERN TELEPHONE SYSTEMS, INC.0043 CONSOLIDATED COMM. PUBLIC SERVICES 5324 EASTGATE COMMUNICATIONS, INC. (ECI)0725 CONSOLIDATED NETWORK INC. 0194 EASTON TELECOM SERVICES, INC.0816 CONSOLIDATED TECHNOLOGIES, INC (CTI) 5279 EASY CELLULAR0646 CONTACT AMERICA, INC. 0389 EATELNET0386 CONTINENTAL CABLEVISION 0327 ECI COMMUNICATIONS0701 CONTINENTAL LONG DISTANCE 0497 ECON-A-CALL INC. OF HAYS

5559 COOPERATIVE COMMUNICATIONS, INC. 0952 ECONOCOM LONG DISTANCE 5787 COOPERATIVE TELEPHONE COMPANY 0373 ECONO-LINE WACO/ECONO-LINE MIDLAND0127 CORPORATE COMMUNICATIONS GROUP, INC. 0060 ECONOMY TELEPHONE, INC.

6753 CORPORATE SERVICES TELCOM 0604 ECONOPHONE, INC.0690 CORPORATE TELEMANAGEMENT GROUP 0325 ECONO. CALL LONG DISTANCE SERVICES

5221 CORRECTIONAL COMMUNICATIONS CORPORATION, INC. 0324 EDMONTON TELEPHONE CORPORATION 6269 COX COMMUNICATIONS, INC. 0625 EDS0199 CRESCENT COMMUNICATIONS 0650 EDS

5821 CRYSTAL COMMUNICATIONS 0273 EDS . 5250 CRYSTAL COMMUNICATIONS, INC. 5007 EGYPTIAN COMMUNICATIONS SERVICES, INC. 5262 CST COMMUNICATIONS, INC. 0802 ELECTRIC LIGHTWAVE, INC.0659 CTA COMM. INC. dba CTA LONG DISTANCE 5130 ELLTEL WIRELESS0834 CTS TELCOM OF FLORIDA 0365 EMI COMMUNICATIONS CORP

6673 CURRY COMMUNICATIONS, INC. 5697 EMPIRE COMMUNICATIONS SERVICES CORPORATION0585 CUSTOM TELECONNECT, INC. 0359 EMPIRE ONE TELECOMMUNICATIONS, INC.

5880 CYBERNET COMMUNICATIONS 0078 ENHANCED SERVICES BILLING, INC. (ESBI)0613 CYBERNET INTERNATIONAL, INC. 0532 EQUAL ACCESS OF WASHINGTON0203 CYPRESS TELECOMMUNICATIONS CORP. (CYTEL) 5009 EQUALITY PLUS TELECOMMUNICATIONS0361 DAKOTA COOPERATIVE TELECOMM., INC. 5122 EQUALNET CORPORATION

6798 DANCRIS COMM. LLC 0364 EQUICOM COMMUNICATIONS, INC.0147 DATA & ELECTRONIC SERVICES, INC. 0441 ESCONDIDO TELEPHONE COMPANY

5712 DATACOMM INTERNATIONAL CO. LTD. 0415 ESPI, INC. 5053 DEKALB TELEPHONE COOPERATIVE INC. 5500 ESS VENTURES, INC.0233 DELTACOM L.D.S. 5383 ETEX LONG DISTANCE dba ETEX CELLULAR CO., INC.0240 DELTACOM L.D.S. 0048 ETSC

5335 DELTATEL, INC. 0752 EXCEL TELECOMMUNICATIONS, INC.0693 DELUXE DATA SYSTEMS 0828 EXCEL TELECOMMUNICATIONS, INC.0950 DEPARTMENT OF THE TREASURY, IRS 5930 EXCO LONG DISTANCE

35



CODE ASSIGNED TO CODE ASSIGNED TO0865 EXPRESS COMMUNICATIONS, INC. 5485 GLENNERIC COMMUNICATIONS, INC.0429 EXTELCOM dba EXPRESS TEL 0295 GLENS FALLS LONG DISTANCE SERVICE0493 EXTELCOM dba EXPRESS TEL 0206 GLOBAL COM

6408 FAIRVIEW TELECOM 5588 GLOBAL RATE PROCESSING 5042 FAR POINT 0435 GLOBAL TELEMEDIA INTERNATIONAL, INC.0531 FARMERS LONG DISTANCE, INC. 0455 GLOBAL TEL*LINK, INC.

5257 FARMERS MUTUAL COOPERATIVE TELEPHONE CO. 5714 GLOBAL TONE COMMUNICATIONS, INC. 5259 FARMERS MUTUAL TELEPHONE CO. 5443 GLOBALCOM, INC. 6404 FASTLINE COMMUNICATION NETWORK 0469 GMW COMPANY0447 FAXNET CORPORATION 5476 GRANITE STATE LONG DISTANCE

5326 FBN AMERICA, INC. 5118 GREAT LAKES TELECOMMUNICATIONS (GLTC)0922 FEB CORPORATION 5453 GROUP LONG DISTANCE, INC.0285 FEDERAL TRANSTEL, INC. 0344 GST CALL AMERICA0679 FEIST LONG DISTANCE 0583 GST NET, INC.0051 FIBERLINK COMMUNICATIONS CORP. 5478 GST PACWEST TELECOM, INC.0704 FIBERNET TELECOMMUNICATIONS, INC. 5756 GST TELECOM, INC.0350 FIBERNET TELEMANAGEMENT, INC. 0185 GTC

5037 FIBERNET, INC. 5483 GTE CARD SERVICES INC. dba GTE LONG DISTANCE0479 FIBERTECH TELECOM, INC. 6224 GTE CARD SERVICES INC. dba GTE LONG DISTANCE0472 FIRST CHOICE LONG DISTANCE, INC. 5448 GTE INTERNAL TELECOMMUNICATION SERVICES0935 FIRST CHOICE LONG DISTANCE, INC. 5249 GTE TELEPHONE OPERATIONS0841 FIRST FINANCIAL MANAGEMENT CORP. 0886 GUIDE NETWORK INTERNATIONAL0475 FIRSTEL 0962 GULF LONG DISTANCE, INC.

5052 FIVE AREA LONG DISTANCE 5432 G.E. EXCHANGE0379 FLEABUSTERS 0820 G.E. EXCHANGE

5940 FLEMING LONG DISTANCE 0691 HAMILTON TELECOMMUNICATIONS 6362 FOCAL COMMUNICATIONS CORP. 6108 HANCOCK RURAL TELEPHONE CORPORATION0503 FONE AMERICA, INC. 5202 HART COMMUNICATIONS, INC. dba HART TEL. LONG DISTANCE

5835 FONETEL 0015 HAWAIIAN TELEPHONE COMPANY (GTE)0507 FONOROLA 5422 HCC TELEMANAGEMENT

5939 FOREST PINE TELCOM 5381 HEALTH LIABILITY MANAGEMENT 5678 FORT BEND LONG DISTANCE 5331 HEART OF IOWA COMMUNICATIONS, INC.0637 FOX COMMUNICATIONS CORP. 5840 HEBRON CORPORATION

5039 FREEDOM TELECOMMUNICATIONS INC. 0049 HEDGES & ASSOCIATES 5665 FRESH START COMMUNICATIONS - FSC 6424 HELMSCO, INC. dba. CENTRAL LINK COMM. 5020 FRIENDLY VOICE NETWORK 0584 HEREFORD LONG DISTANCE SERVICES0506 FRIENDSHIP LONG DISTANCE 5021 HERITAGE COMMUNICATIONS0003 FRONTIER COMMUNICATIONS INT'L, INC. 0261 HERTZ TECHNOLOGIES, INC.0086 FRONTIER COMMUNICATIONS INT'L, INC. 5917 HICKORY GROVE GROUP0211 FRONTIER COMMUNICATIONS INT'L, INC. 6381 HICKORY TELEPHONE COMPANY0245 FRONTIER COMMUNICATIONS INT'L, INC. 5426 HIGHLAND COMMUNICATIONS CORP.0515 FRONTIER COMMUNICATIONS INT'L, INC. 0722 HI-PLAINS NTS COMMUNICATIONS0516 FRONTIER COMMUNICATIONS INT'L, INC. 0750 HI-RIM COMMUNICATIONS, INC.0232 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 5047 HLC INTERNET0500 FRONTIER COMMUNICATIONS OF THE GREAT LAKES, INC. 0965 HOGAN COMMUNICATIONS0202 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 5520 HOME LONG DISTANCE, INC.0231 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0882 HOME OWNERS L.D. dba HOLD BILLING SVCS.0260 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 5925 HONE COMMUNICATIONS0322 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0920 HONGKONG TELECOM (CANADA)0400 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 5484 HORIZON TELECOMMUNICATIONS, INC.0511 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0124 HORRY TELEPHONE LONG DISTANCE, INC.0633 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 6101 HOST NETWORK, INC.0705 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0392 HSS VENDING DISTRIBUTORS0831 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 5482 HTC COMMUNICATIONS CO.0958 FRONTIER COMMUNICATIONS-NORTH CENTRAL REGION, INC. 0340 HUB DISTRIBUTING, INC.0058 FRONTIER LOCAL SERVICES, INC. 0681 HUNTLEIGH TELECOMM. GROUP, INC.0694 FRONTIER LONG DISTANCE OF AMERICA 6484 HYPERION TELECOMMUNICATIONS INC.

5772 FTI COMMUNICATIONS 0419 H.G. TELECOM, INC0735 FTI COMMUNICATIONS 5444 I DON'T CARE

6920 FULL SERVICE COMPUTING 5136 I DON'T KNOW 6412 FUTURE CONNECT 6405 IACT0121 FUTURE TELEPHONE COMMUNICATIONS 0513 ICG dba INTERCONTINENTAL COMMS. LONG DISTANCE

6407 GALA COMMUNICATIONS 0706 ICON COMMUNICATIONS CORPORATION0997 GAS COMPANY OF NEW MEXICO 0328 IDAHO STATE GOVERNMENT

5015 GATEWAY COMMUNICATIONS, LTD. 6437 IDS LONG DISTANCE, INC.0077 GENERAL COMMUNICATION, INC. 0023 IDS LONG DISTANCE, INC.

5830 GENESIS COMMUNICATIONS INT'L, INC. 0141 IFC COMMUNICATIONS 5436 GEOTEL COMMUNICATION SERVICES, INC. 5519 INCLINE COMMUNICATIONS, INC. 6937 GERMANTOWN LONG DISTANCE 0527 INDEPENDENCE TELEPHONE CO.

36



CODE ASSIGNED TO CODE ASSIGNED TO0460 INDEPENDENT NETWORK SERVICES, INC. 5532 LACKAWAXEN LONG DISTANCE CO.0796 INDIANTOWN TELEPHONE LONG DISTANCE 0552 LAKE STATES COMMUNICATIONS, INC.

6406 INDICOM 5535 LAKEDALE LINK, INC. 5970 INFONET LONG DISTANCE, L.L.C 5553 LAKEFIELD COMMUNICATIONS, INC. 6878 INFONXX 0193 LANDMARK COMMUNICATIONS COMPANY, INC. 5061 INFO-TEL COMMUNICATIONS INC. 5013 LANSER TELECOM, INC.0433 INFO-TEL, INC. 0711 LAS VEGAS CONVENTION & VISITORS AUTHORITY0510 INNOVATIVE COMMUNICATIONS, INC. 5548 LAUREL HIGHLAND LONG DISTANCE CO.0020 INNOVATIVE TELECOM CO. 0562 LCI0696 INTEGRATED SYSTEMS CORPORATION 0012 LCI INTERNATIONAL

5487 INTEGRATED TELESERVICES, INC. 0358 LCI INTERNATIONAL0402 INTEGRETEL, INC. 0451 LCI INTERNATIONAL0591 INTEL COMMUNICATIONS 0452 LCI INTERNATIONAL0465 INTELCO 0537 LCI INTERNATIONAL0599 INTELCOM GROUP, INC. 0665 LCI INTERNATIONAL0034 INTELLICALL OPERATOR SERVICES 0487 LCT LONG DISTANCE0025 INTER CONTINENTAL TELEPHONE 0561 LCT LONG DISTANCE

6423 INTER DIVISION COMM 0684 LCT LONG DISTANCE 5468 INTERACTIVE NETWORK SYSTEM, INC. (INET) 5937 LD BRUCE0936 INTERAMERICAN TELEPHONE CO. (ITC) 5321 LDC TELECOMMUNICATIONS, INC.

5101 INTERCONTINENTAL COMMUNICATIONS CORP. 5060 LDCC, INC.0605 INTERCONTINENTAL TELCOM INC. 6600 LDM SYSTEMS, INC.0904 INTERLINK TELECOMMUNICATIONS 5255 LEAST COST ROUTING dba LONG DISTANCE CHARGES

5393 INTERMEDIA COMMUNICATIONS, INC. 0299 LECNET, INC.0393 INTERMEDIA COMMUNICATIONS, INC. 5524 LEGAL AID SOCIETY OF ORANGE COUNTY0943 INTERNATIONAL CELLULAR, INC. (ICI) 6419 LEWIS COMMUNICATIONS

5031 INTERNATIONAL OPERATORS, INC. 0525 LEXINGTON TELEPHONE L.D. CO., INC.0404 INTERNATIONAL TELCOM, LTD. 0708 LIGHT LINK INC/dba TAYLOR COMM. GRP.

5318 INTERNATIONAL TELECOMMUNICATION CORP. 5109 LIGHTCOM INTERNATIONAL 5698 INTERNATIONAL TELECOM, INC. (ITI) 0563 LINKUSA CORPORATION0076 INTERNATIONAL TELEMEDIA ASSOCIATES, INC. 0236 LITEL/LCI INTERNATIONAL0310 INTERNATIONAL TELEPHONE CORP. (ITC) 0253 LITEL/LCI INTERNATIONAL

5024 INTERSTATE OPERATORS, INC. 0432 LITEL/LCI INTERNATIONAL0068 INTERSTATE SAVINGS 0512 LOCATE TELEPHONE COMPANY0964 INTERSTATE TELECOM SVCS. INC. 0369 LOMA INTERNATIONAL, INC.

5051 INTER-TEL NETSOLUTIONS 0960 LONDON TELECOM0508 INTEX 0205 LONE STAR TELECOM

6255 INT'L. SERVICES NETWORK, INC. dba ISN COMMUNICATIONS 0035 LONG DISTANCE AMERICA0685 INTL.800 TELECOM dba TELECALL LONG DIST. 6411 LONG DISTANCE ASSISTANCE0283 IOWA COMMUNICATIONS NETWORK 5334 LONG DISTANCE DIRECT, INC.

6225 IOWA NETWORK SERVICES, INC. 0533 LONG DISTANCE DISCOUNT INC.0225 IOWA NETWORK SERVICES, INC. 0799 LONG DISTANCE INTERNATIONAL

5320 IPC IXNET 0536 LONG DISTANCE MANAGEMENT0486 IRONTON LONG DISTANCE CO. 0382 LONG DISTANCE MANAGEMENT INC.0422 ISLAND TEL, PEI 0395 LONG DISTANCE NETWORK

5137 IT DOESN'T MATTER 0631 LONG DISTANCE OF MICHIGAN0897 ITC NETWORK OF UTAH 0564 LONG DISTANCE OHIO, INC.0468 ITC NETWORKS 0036 LONG DISTANCE SAVERS0478 ITC NETWORKS 0213 LONG DISTANCE TELEPHONE SAVERS

6483 IT&E OVERSEAS, INC. 0069 LONG DISTANCE TRANSFER, INC. 5135 IXC LONG DISTANCE, INC. (IXC LD) 0297 LONG DISTANCE WHOLESALE CLUB 5029 J B OPERATORS, INC. 0252 LONG DISTANCE/USA [SPRINT] 5011 JONES COMMUNICATIONS, INC. 5151 LOTEL CO. INC.0947 JSM TELE-PAGE 0803 LOW COUNTRY CARRIER dba HARGRAY L.D. CO.

5268 JUSTICE LONG DISTANCE, INC. 0928 LOW COUNTRY CARRIER dba HARGRAY L.D. CO. 5107 KANOKLA COMMS., INC.dba KANOKLA LONGDISTANCE 0931 L.D. NETWORK, INC. 5941 KBTN 0280 L.D. SERVICES, INC0388 KDD AMERICA, INC. 0398 M2 COMMS. dba DIAL LONG DISTANCE BILLING SVCS.0925 KELHORN COMMUNICATIONS, INC. 5633 MADISON NETWORK SYSTEMS, INC.0062 KENTUCKY TELEPHONE CORP. 6674 MANAGED NETWORK SYSTEMS, INC.0703 KEYSTONE TELECOMMUNICATIONS, INC. 0783 MANITOBA TELEPHONE SYSTEM0545 KEYSTONE TELECOM, INC. 0357 MANITOWOC LONG DISTANCE SERVICE

5711 KING SALMON COMMUNICATIONS, INC. 0014 MARATHON COMMUNICATIONS 5367 KINNET 5784 MARIANNA-SCENERY HILL LONG DISTANCE CO. 5045 KLP, INC. dba CALL-AMERICA 0434 MARITIME TEL & TEL 5929 KNOX SERVICE GROUP 5765 MARNE & ELK HORN TELEPHONE CO.0989 KRB TELECOM 6282 MARQUETTE-ADAMS TELEPHONE COOPERATIVE, INC.

5016 KTNT COMMUNICATIONS 0697 MATRIX TELECOM0148 KULL CELLULAR CORP.dba ALLEGAN CELLULAR 0780 MATRIX TELECOM

6301 K&S INTERNATIONAL COMMUNICATIONS, INC. 5852 MAT-TELL COMMUNICATIONS, INC.0926 LA CONEXION FAMILIAR, INC. 0022 MCI

37



CODE ASSIGNED TO CODE ASSIGNED TO0092 MCI 5872 NATIONWIDE PAGING, INC.0122 MCI 0448 NB TEL0133 MCI 0072 NBD BANK, NA0222 MCI 0017 NCHE TELECOMMUNICATIONS NETWORK, INC.0888 MCI 0639 NEP LONG DISTANCE CO.0898 MCI 0098 NETECH COMM. A US WEST COMPANY0900 MCI 5041 NET-TEL CORPORATION0986 MCI 0026 NET-TEL CORPORATION0183 MCI METRO 0871 NETWORK BILLING AND COLLECTIONS, INC.0188 MCI/1-800-COLLECT 5577 NETWORK CARRIER SERVICES0170 MCLEOD NETWORK SERVICES 5680 NETWORK ENHANCED TECHNOLOGIES, INC. (NET)

6836 MCSC ACCESS IN CANADA (CSCN) 0765 NETWORK LONG DISTANCE 5926 MCV TELCOM 0179 NETWORK MARKETING GROUP 6356 MEGAWATS 0135 NETWORK ONE0093 MELBOURNE INTERNATIONAL COMM. LTD. 0717 NETWORK ONE, INC.

5455 MERIDIAN TELECOM CORPORATION 0308 NETWORK OPERATOR SERVICES, INC.0449 MERRILL LYNCH 0764 NETWORK PLUS0138 METCOM CANADA LIMITED 5332 NETWORK RECOVERY SERVICES, INC.0565 METRO ONE DIRECT 6999 NETWORK SERVICES LONG DISTANCE0860 METRO TELECOMM.SVCS.,INC. dba METROCOMM 0785 NETWORK TECHNOLOGIES INC.0635 METRO TELEPHONE, INC. 6835 NEW CENTURY TELECOM, INC.0216 METROLINK 0940 NEW ENGLAND TELEDISCOUNT SYSTEMS, INC.0258 METRONET LONG DISTANCE COMMUNICATIONS 6665 NEW NORTH TELECOMMUNICATIONS, INC.

5895 METROTEL COMMUNICATIONS 0945 NEW TIMES, INC. 5682 METROTIME COMMUNICATIONS 0445 NEWFOUNDLAND TELEPHONE 6010 MFS INTELENET, INC. 6398 NEXTEL COMMUNICATIONS 6011 MFS INTELENET, INC. 5119 NEXTLINK 6012 MFS INTELENET, INC. 0423 NICKEL FONE0440 MFS INTELNET, INC. 5653 NLD, USA

5001 MH COMMUNICATIONS, INC. 0498 NORLIGHT TELECOMMUNICATIONS, INC. 5288 MICHIGAN INDEPENDENT NETWORK, INC. 0499 NORLIGHT TELECOMMUNICATIONS, INC. 6682 MICRONESIAN TELECOMMUNICATIONS CORPORATION (MTC) 0837 NORLIGHT TELECOMMUNICATIONS, INC. 6288 MICROVOICE APPLICATIONS, INC. 5168 NORTH AMERICAN COMMUNICATIONS CONTROL, INC.0648 MID MCND dba MIDCOM COMMUNICATIONS, INC. 0027 NORTH AMERICAN COMMUNICATIONS GROUP0495 MID SEA dba MIDCOM COMMUNICATIONS, INC. 0933 NORTH AMERICAN COMMUNICATIONS, INC.0621 MID TNC dba MIDCOM COMMUNICATIONS, INC. 6232 NORTH AMERICAN DIGICOM CORPORATION0338 MIDCO COMMUNICATIONS 0601 NORTH AMERICAN INTELECOM0996 MIDCO COMMUNICATIONS 0201 NORTH AMERICAN TELEPHONE0810 MIDCOM COMMUNICATIONS, INC. 5044 NORTH AMERICAN TELEPHONE NETWORK, INC.0558 MIDCOM OF ARIZONA,INC. 0890 NORTH COUNTY COMMUNICATIONS CORPORATION

5173 MID-MAINE TELPLUS dba MID-MAINE LONG DISTANCE 5635 NORTH DAKOTA LONG DISTANCE0959 MID-PLAINS TELEPHONE, INC. 5679 NORTH PITTSBURGH TELEPHONE COMPANY0932 MIDTEL LONG DISTANCE MINOT 6325 NORTH STATE TELEPHONE LONG DISTANCE CO.0680 MIDWEST TELEPHONE SERVICE, INC. 6332 NORTHEAST FLORIDA LONG DISTANCE COMPANY, INC.

6264 MIIC dba POLARIS TELCOM 5800 NORTHEAST TELEPHONE LONG DISTANCE, INC.0264 MIIC dba POLARIS TELCOM 0491 NORTHERN ARIZONA COMMUNICATIONS CORP.

5762 MIKROTEC INTERNET SERVICES, INC. 0376 NORTHERN TELECOM, INC. 5928 MINH LONG DISTANCE 5310 NORTHERN TELEPHONE & DATA (NTF) 5032 MORNINGSTAR COMMUNICATIONS, INC. 0713 NORTHERN WISCONSIN L.D.S.0305 MOTOROLA INC. 0332 NORTHLAND TELEPHONE SYSTEMS LTD.

5229 MOUNTAIN WEST LONG DISTANCE 6922 NORTHWEST COMMUNITY COMMUNICATIONS, INC. 5030 MOUNTAINVIEW COMMUNICATIONS, INC. 0638 NORTHWEST TELECOM, LTD.0132 MPC BUS. COMMS. SYSTEMS, INC./EASTON TELECOM SVCS. 5375 NORTHWESTERN INDIANA TELEPHONE CO.0912 MRC TELECOMMUNICATIONS, INC. 0210 NOS COMMUNICATIONS, INC.

5329 MTC LONG DISTANCE 0094 NOSVA, L.P. 5689 MTX COMMUNICATIONS 5839 NPS, INC.0171 MULTIMEDIA LONG DISTANCE CO. 0908 NTC, INC.0829 MULTIMEDIA TELEPHONE SERVICE, INC. 0401 NTI

5934 MUSTANG OPERATORS 0623 NTI0688 MUSTANG TELE-COMMUNICATIONS, INC. 5797 NTI TELECOM, INC.0827 MVP COMMUNICATIONS, INC. 0687 NTS COMMUNICATIONS INC.

5566 M.T. CORPORATION 0407 NUESTRA TELEFONICA0806 NACT 5110 NYNEX0549 NATIONAL BRANDS, INC. 6953 NYNEX0632 NATIONAL DATA CORPORATION 6963 NYNEX

5026 NATIONAL FIBER COM, INC. 0698 NYNEX - CORRIDOR0326 NATIONAL FIBERNET, INC. 0658 OCI0059 NATIONAL INDEPENDENT CARRIER EXCH., INC. 0805 OCI0656 NATIONAL NETWORK CORP. 0590 OCOM CORPORATION

5385 NATIONAL TELCOM MANAGEMENT INC 5959 OGDEN TELEPHONE LONG DISTANCE0657 NATIONAL TELECOM OF FLORIDA 5894 OKLAHOMA LONG DISTANCE0603 NATIONAL TELEPHONE COMMUNICATIONS 5911 OLD HOME OPERATOR0746 NATIONAL TELEPHONE EXCHANGE (PA) 5912 OLD LAREDO SERVICE0341 NATIONAL TELE-SAV, INC. 0509 OLYMPIC TELECOMMUNICATIONS, INC.0716 NATIONWIDE COMMUNICATIONS, INC. 0769 OMNI COMMUNICATIONS, INC.0627 NATIONWIDE EMERGENCY TELECOMM. SYSTEM 0391 OMNICALL COMMUNICATIONS CORPORATION0057 NATIONWIDE LONG DISTANCE 0226 ONE CALL COMMUNICATIONS0403 NATIONWIDE LONG DISTANCE 0880 ONE CALL COMMUNICATIONS

38



CODE ASSIGNED TO CODE ASSIGNED TO0873 ONE STAR LONG DISTANCE 6644 PYMATUNING INDEPENDENT TELEPHONE COMPANY

5235 ONE STOP COMMUNICATIONS 0942 QCC, INC.0390 ONE-2-ONE COMMUNICATIONS 0971 QUEST TELECOMMUNICATIONS, INC.

5983 ONEONTA TELEPHONE CO., INC. 5789 QUESTAR INFOCOMM INCORPORATED0891 OPERATOR SERVICE COMPANY 0056 QWEST COMMUNICATIONS0695 OPTICALL COMMUNICATIONS SERVICES 0047 RANGER TELECOMMUNICATIONS

6464 ORLANDO DIGITAL TELEPHONE CORP. 5004 RAPID LINK, U.S.A., INC. 6795 ORWELL TELEPHONE COMPANY 5033 REA LONG DISTANCE 5980 OVERLOOK COMMUNICATIONS INTERNATIONAL 0079 RED ROSE SYSTEMS dba D&E LONG DISTANCE0651 O.L.C. COMPANY 0463 REDWOOD LONG DISTANCE0572 PAC TEL PAGING, A PACIFIC TELESIS CO. 6403 REGENCY LONG DISTANCE0757 PACE LONG DISTANCE SERVICE 5103 RESERVE LONG DISTANCE0758 PACE LONG DISTANCE SERVICE 5113 RESIDENTIAL COMMUNICATIONS NETWORK

5072 PACIFIC BELL 5296 RGDATA, INC. 5465 PACIFIC BELL 0134 RIKTEL COMMUNICATIONS, INC.0372 PACIFIC BELL COMMUNICATIONS 5935 RIVERBEND COMMUNICATIONS0597 PACIFIC GATEWAY EXCHANGE 6420 RKS COMMUNICATIONS

5131 PACIFIC TELECOM, INC. (PTI) 0111 ROSEVILLE TELEPHONE CO.0099 PAC-WEST TELECOMM, INC. dba AMERICALL 0519 RSL COM U.S.A.

6057 PALMER MUTUAL TELEPHONE CO. 0618 RSL COM U.S.A. 6034 PANTEL COMMUNICATIONS 5025 RYAN COMMUNICATIONS, INC.0191 PARADISE COMMUNICATIONS 0642 R,D,&J COMMUNICATIONS MGMT. INC.0553 PARKWAY COMMUNICATIONS, INC. 0438 SAM'S DISCOUNT LONG DISTANCE, INC.

5333 PARTNER COMMUNICATIONS GROUP 5913 SANDELL OPERATOR SERVICE0251 PARTNERS TELECOM, INC. 0242 SASKTEL0917 PAY TEL COMMUNICATIONS, INC. 5501 SATELLITE COMMUNICATIONS SYSTEMS, INC.

5377 PAYLESS LONG DISTANCE, LTD 6413 SAVEMORE NETWORK 5758 PAYLESS TELECOM, INC. 0088 SBS/MCI0767 PAYLINE SYSTEMS, INC. 0734 SCHERERS COMMUNICATIONS GROUP, INC.

5104 PAYPHONE CONSULTANTS, INC. (PCI) 0542 SEATTLE LONG DISTANCE NETWORK, INC. 6722 PBC LONG DISTANCE 5023 SELECT COMMUNICATIONS 6102 PCI 5116 SEQUEL COMMUNICATIONS, INC.0178 PDQ COMMUNICATIONS SOURCE 0018 SHARED USE NETWORK0775 PENCOR SERVICES dba PALMERTON LONG DIST. 5753 SHERBURNE LONG DISTANCE, INC.0743 PENINSULA LONG DISTANCE SERVICE, INC. 0778 SHOW-ME LONG DISTANCE, INC.0412 PENN TELECOM, INC. 5858 SIERRA TELEPHONE LONG DISTANCE0728 PEOPLES COMMUNICATION, INC. 5034 SIGNATURE NETWORK SERVICE0227 PEOPLE'S TELEPHONE COMPANY, INC. 5297 SIMPLY LONG DISTANCE, INC. (SLD)0490 PHOENIX COMMUNICATIONS GROUP, INC. 6402 SISK COMMUNICATIONS

5600 PHOENIX NETWORK 6782 SMITHVILLE TELEPHONE CO., INC.0244 PHOENIX NETWORK 0126 SONIC COMMUNICATIONS, INC.0420 PHOENIX NETWORK 0892 SOUND COMMUNICATIONS WEST

5599 PHONE MICHIGAN 0770 SOURIS RIVER TELECOMMUNICATIONS COMPANY0838 PHONETEL TECHNOLOGIES, INC. 0807 SOUTH CAROLINA NETWORK, INC.0930 PILGRIM TELEPHONE INC. 5148 SOUTH SLOPE COOPERATIVE TELEPHONE CO., INC.0146 PIONEER LONG DISTANCE 5738 SOUTHEAST TELEPHONE, LTD.0610 PIONEER LONG DISTANCE 6738 SOUTHEASTERN NETWORK SERVICES0647 PIONEER LONG DISTANCE, INC. 6763 SOUTHERN NEW ENGLAND TELEPHONE (SNET)0905 PIZZA HUT, INC. 0763 SOUTHERN NEW ENGLAND TELEPHONE (SNET)

6383 PLANET COMMUNICATIONS GROUP 0792 SOUTHTEL CORPORATION0526 POKA-LAMBRO TELECOMMUNCATIONS, INC. 0793 SOUTHWEST TEXAS COMMUNICATIONS, INC.0967 POLAR COMMUNICATIONS CORP. 0993 SOUTHWEST UNITED COMMUNICATION,INC

5936 POLLOCK LD SERVICE 5233 SOUTHWESTERN BELL TELEPHONE0477 POPP TELCOM 5722 SOUTHWESTERN BELL TELEPHONE

5079 PREFERRED CARRIER SERVICES (PCS) 5792 SOUTHWESTERN BELL TELEPHONE0976 PREFERRED NETWORK 0005 SOUTHWESTERN TELECOM, INC.0844 PREFERRED TELECOM, INC. 0653 SPECIALIZED TELECOMMUNICATIONS

6339 PREMIER COMMUNICATIONS, INC. 0972 SPECTRANET, INC.0342 PREMIER LONG DISTANCE SVCS. INC. 6778 SPRING VALLEY TELEPHONE LONG DISTANCE

6767 PREMIERE COMMUNICATIONS 0033 SPRINT 5010 PRE-PAY U.S.A. INC. 0177 SPRINT 5788 PRESTON ENTERPRISE, INC. 0333 SPRINT 5632 PRIME LINE COMMS. dba PRIME LINK LONG DISTANCE, INC. 0777 SPRINT0954 PRIME TIME COMMUNICATIONS 0872 SPRINT

5683 PRIMETEL COMMUNICATIONS, INC. 0348 SPRINT CANADA, INC.0024 PRIMUS 0773 SPRINT CANADA, INC.0776 PRIORITY ONE LONG DISTANCE 5046 SPRINT METROPOLITAN NETWORK, INC.0673 PRO TAS TELECOMMUNICATIONS 0248 STANDARD COMMUNICATIONS, INC., dba SCI0726 PROCOM, INC. 0186 STANDARD LONG DISTANCE

5433 PRO-LIFE NETWORK, L.L.C. 0352 STANDARD TELCOM, INC.0215 PRONTO LONG DISTANCE INC. 0787 STAR TEL OF ABILENE

5536 PRTC COMPETITIVE SVCS. LDC 0983 STAR TEL OF VICTORIA, INC.0045 PSA, INC. 0984 STAR TEL TRANSMISSION CO., INC.0249 PSP MARKETING GROUP, INC. 5223 STAR TELECOMMUNICATIONS, INC.0255 PUBLIC PHONE 0628 STAR TELEPHONE LONG DISTANCE

5847 PUBLIC SERVICE CELLULAR, INC. 0313 STAR TEL, INC.0830 PUBLIC SERVICE COMPANY OF NM 0439 STAR TEL, INC.0740 PUBLIC SWITCH CORP. 0195 STARCOM INTERNATIONAL OPTICS CORP.

39



CODE ASSIGNED TO CODE ASSIGNED TO 5958 STARGATE COMMUNICATIONS, INC. 0114 TELELINK0719 STARTEC, INC. 0458 TELEMANAGEMENT CONSULTANTS CORPORATION0762 STATE OF CALIFORNIA - CALNET 0689 TELEMANAGEMENT CONSULTANTS CORPORATION

5681 STATE OF CA. HEALTH & WELFARE AGENCY DATA CENTER 0887 TELEMANAGEMENT CONSULTANTS CORPORATION0189 STATE OF TEXAS - GSC 5102 TELENATIONAL COMMUNICATIONS

5327 STATE TELEPHONE LONG DISTANCE 6414 TELENET COMMUNICATIONS0929 STENOCALL 0759 TELENET COMM. CORP. [SPRINT]

6969 STERLING TELECOMMUNICATIONS, INC. 5864 TELEPACIFIC NETWORK, INC.0184 STONE & COMPANY 5165 TELEPHONE ASSOCIATES0577 STRATEGIC ALLIANCES, INC 0219 TELEPHONE BILLING SERVICE0744 ST. JOE COMMUNICATIONS, INC. 0977 TELEPHONE COMMUNICATIONS CORPORATION

6410 ST. PIERRE COMMUNICATION NETWORK 5111 TELEPHONE ECONOMY LEAGUE 5888 SUMMIT TELESERVICES 0745 TELEPHONE ELECTRONICS NETWORK, LTD. 5914 SUNRISE OPERATOR 0899 TELEPHONE EXPRESS0784 SUNSHINE TELEPHONE, INC. dba SUNTEL 0961 TELEPHONE SYSTEMS OF GEORGIA

6565 SWISHER TELEPHONE COMPANY 6111 TELEPOOL NETWORK, INC.0727 SWITCH 2000, INC. 0731 TELESCAN, INC.0948 SWITCHED SERVICE COMMUNICATIONS 0380 TELESERV CORPORATION0666 SYSTEMS 1000 0602 TELESERVE COMMUNICATIONS

6666 S.F.C. ENTERPRISES 0482 TELE-SYS, INC. 5692 TACONIC TELCOM CORP. 0409 TELEVOX PUBLIC COMMUNICATIONS, INC.0849 TALTON TELECOMMUNICATIONS CORP. 0116 TELNET GLOBAL COMMUNICATIONS0110 TANDEM ACCESS FOR DATABASE QUERY 0296 TELNEX, INC.0214 TCA COMMUNICATIONS 0626 TEL-ONE0669 TCA LONG DISTANCE 0489 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)

5227 TCAST COMMUNICATIONS, INC. 0587 TEL-OPTIC, INC. dba UNIVERSAL NETWORK SVCS. (UNI-NET)0292 TCG 5112 TELSCAPE INTERNATIONAL, INC.0560 TCI COMMUNICATIONS, INC. 0330 TEL-SHARE0883 TEASE COMMUNICATIONS 0520 TEL-SPAN COMMUNICATIONS, INC.0476 TEK COMMUNICATIONS, INC. 0485 TELTRUST, INC.0700 TEL AMERICA 0707 TELVUE CORPORATION0709 TEL AMERICA 0331 TEXUSTEL, INC.0729 TEL AMERICA 6253 THE BENTLEYVILLE LONG DISTANCE COMPANY0269 TEL AMERICA L.D.T.S. 0268 THE COMMUNIGROUP0919 TEL NET,INC. 0885 THE COMMUNIGROUP OF KC0378 TEL SERV 0998 THE COMMUNIGROUP OF KC0397 TELALEASING ENT.INC dba PHONE ZONE INC. 5100 THE CORCORAN GROUP0007 TELAMARKETING COMMUNICATIONS INC. 5014 THE FURST GROUP, INC.0749 TELAMERICA COMMUNICATIONS, INC. 5608 THE LONG DISTANCE PARTNERSHIP, L.P.

5522 TELAPEX LONG DISTANCE, INC. 0798 THE PAY TELEPHONE COMPANY0218 TEL-CENTRAL OF JEFFERSON CITY 6746 THE PHONE COMPANY0457 TELCO COMMUNICATIONS GROUP dba DIAL & SAVE 0896 THE REAL PUBLIC TELEPHONE COMPANY, INC.0399 TELCO HOLDINGS, INC. 6150 THE SAN DIEGO TELEPHONE COMPANY0861 TELCO HOLDINGS, INC. 0385 THE SWITCHBOARD

5258 TELCOM NETWORK, INC. (TNI) 5882 THE TELEPHONE CONNECTION OF L.A., INC.0149 TEL-COM TELECOMMUNICATIONS, INC. 6887 THE TELEPHONE CONNECTION OF L.A., INC.0915 TELE TECH, INC. 5106 THE V.I.P. PHONE CLUB, INC.

5646 TELEBERMUDA INTERNATIONAL LIMITED (TBI) 5728 THRIF-TCOMM0845 TELECABLE CORPORATION 0923 THRIFTY CALL, INC.

5125 TELECARE, INC. 5892 TIME WARNER 5874 TELECARRIER SERVICES, INC. 6892 TIME WARNER 5555 TELECOM ONE 0384 TLD, INC.0529 TELECOM WEST 0016 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC.0042 TELECOMMUNICATION SYSTEMS 0019 TMC LONG DISTANCE dba CHERRY COMMUNICATIONS, INC.0029 TELECOMMUNICATIONS CONSULTANTS, INC. 0462 TMC OF LEXINGTON

5617 TELECOMMUNICATIONS CORPORATION OF AMERICA (TCA) 0566 T-NET0641 TELECOMMUNICATIONS SERVICE CENTER, INC. 5869 T-NETIX, INC.0087 TELECOM*USA [MCI] 0655 T-NETIX, INC.0220 TELECOM*USA [MCI] 0864 T-ONE COMMUNICATIONS CO.0224 TELECOM*USA [MCI] 6964 TOTAL TELECOMMUNICATIONS SVCS., INC.0321 TELECOM*USA [MCI] 0664 TOTAL TELEPHONE, INC. OF UTAH0771 TELECOM*USA [MCI] 0612 TOTAL WORLD TELECOM0826 TELECOM*USA [MCI] 0346 TOTALNET COMMUNICATIONS, INC.0832 TELECOM*USA [MCI] 0081 TOTAL-TEL USA, INC.0835 TELECOM*USA [MCI] 0534 TOUCH 1 COMMUNICATIONS0852 TELECOM*USA [MCI] 0335 TOUCH AMERICA, INC.0857 TELECOM*USA [MCI] 0360 TOUCH AMERICA, INC.0876 TELECOM*USA [MCI] 0994 TOUCH AMERICA, INC.0518 TELECON COMMUNICATIONS CORPORATION 5656 TOUCH TONE AMERICA, INC.0985 TELECORP INTERNATIONAL 5981 TRANS GLOBAL COMMUNICATIONS, INC.

6060 TELEC, INC. 0140 TRANS NATIONAL COMMUNICATIONS, INC.0481 TELEDATA INTERNATIONAL, INC. 5256 TRANSACT DATA SERVICES, INC.0547 TELEFONICA LARGA DISTANCIA 0522 TRANSACTION NETWORK SERVICES

6333 TELEGLOBE USA, INC. 0593 TRANSACTION NETWORKS, INC.0609 TELEGLOBE USA, INC. 0494 TRANSAMERICA COMMUNICATIONS, INC.0630 TELEGROUP 5317 TRANS-WORLD TELECOM0620 TELEHOP COMMUNICATIONS, INC. 5200 TREAS RESOURCES INTL. CORP. dba TRI COMMS. NETWORK

6444 TELEHUB COMMUNICATIONS CORPORATION 0097 TRESCOM PUERTO RICO

40



CODE ASSIGNED TO CODE ASSIGNED TO0848 TRESCOM U.S.A., INC. 5885 VIATEL, INC.0394 TRESCOM U.S.A., INC./TRESCOM CARIBBEAN 6885 VIDEOTRON TELECOM LTEE.

5252 TRI-COUNTY LONG DISTANCE 0847 VIP CONNECTIONS, INC. 6611 TRINET 0466 VIRGIN ISLANDS TELE-COM0120 TRT TELECOMMUNICATIONS CORPORATION 0480 VISTA GROUP INTERNATIONAL0461 TTE OF CHARLESTON 0939 VISTA-UNITED TELECOMMUNICATIONS0578 TTI TELECOMMUNICATIONS, INC. 5924 VIVA TEL LONG DISTANCE0009 TWT-HEARTLINE 0721 VOICE TECHNICAL CORPORATION0067 T.B. ENTERPRISES 5841 VOICE TRACK CORPORATION0229 U S COMNET 5853 VOLCANO LONG DISTANCE

5005 U S TELESERVICES, INC. 0979 VORTEL COMMUNICATIONS, INC. 5123 U S WEST COMMUNICATIONS 0426 VOYAGER NETWORKS, INC. 5923 U SPEAK LONG DISTANCE 0903 VRS BILLING SYSTEMS, INC. 5957 UNI DIAL 0041 VTA, INC. 5450 UNICOM, INC. 5946 WABASH INDEPENDENT NETWORKS0855 UNION TELEPHONE COMPANY 0981 WARWICK VALLEY LONG DISTANCE CO., INC.

5775 UNION TELEPHONE CO. 6981 WARWICK VALLEY TELEPHONE CO.0823 UNITED BANK OF DENVER 6161 WATS INTERNATIONAL CORPORATION0032 UNITED COMMUNICATIONS ASSN., INC. 0677 WATS/800, INC.0955 UNITED COMMUNICATIONS, INC. 0753 WAUSAU LONG DISTANCE SERVICE0544 UNITED TELEPHONE CO. dba TELAMERICA L.D. 0176 WBC COMMUNICATIONS, INC.0204 UNITED TELEPHONE LONG DISTANCE 0712 WCS/DIAL ONE0907 UNI-TEL OF FARMINGTON 6699 WCTC ALL DISTANCE0347 UNIVERSAL LONG DISTANCE, INC. 5057 WEBSTER-CALHOUN LONG DISTANCE (WEB-CAL LD)

5510 UNIVERSAL TELECOM, INC. 5022 WEEKS COMMUNICATIONS, INC.0973 UNIVERSAL TELEPHONE & TELEGRAPH 0052 WEST COAST TELECOMMUNICATIONS, INC.

5430 URSUS TELECOM CORP. 0569 WEST COAST TELECOMMUNICATIONS, INC.0879 US COMMUNICATIONS,INC. 0582 WEST INTERACTIVE GROUP0568 US COMM. INC, dba SOUTHWEST L.D.N, INC. 5655 WEST RIVER LONG DISTANCE0668 US FIBERCOM NETWORK, INC. 0459 WESTCOM LONG DISTANCE

5230 US LEC OF NORTH CAROLINA, L.L.C. 0938 WESTCOM, INC. (WESTERN TELECOM, INC.) 5008 US ONE COMMUNICATIONS CORP. 0978 WESTEL TELECOMMUNICATIONS, LTD.0040 US SIGNAL CORPORATION 0085 WESTEL, INC.0699 US TELESERVICES, INC. 0090 WESTEL, INC.

5878 US VOICE TELEMANAGEMENT, INC. 0443 WESTERN OKLAHOMA INFORMATION SYSTEMS0200 US WATS 0957 WESTERN TELECOMMUNICATION, INC. (WTCI)

5845 USA GLOBAL LINK 0427 WESTERN TELECOM, INC. 6872 USA PAGING 0431 WESTERN TELENET, INC.0228 USLINK LONG DISTANCE 0301 WESTERN TELEPHONE & TELEVISION0381 USN COMMUNICATIONS 5672 WESTINGHOUSE ELECTRIC CORPORATION0474 USN COMMUNICATIONS 5673 WESTINGHOUSE ELECTRIC CORPORATION0131 USP&C, INC. 0946 WESTINGHOUSE ELECTRIC CORPORATION0172 USP&C, INC. 5938 WEYMOUTH SERVICE0074 USTEL 0524 WHITMAN COLLEGE

6853 UTC LONG DISTANCE, L.L.C. 5138 WHO EVER0851 UTEL-CALL 0367 WHOLESALE COMMUNICATIONS0355 U. S. LINK 0877 WILLAMETTE VALLEY TELECOM0596 U.S. ADVANTAGE LONG DISTANCE 5054 WILTON LONG DISTANCE

5982 U.S. AMERITEL 5277 WILTON TELEPHONE COMPANY 5969 U.S. CELLULAR CORP. 6105 WINNEBAGO COOPERATIVE TELEPHONE ASSOC. (WCTA)0574 U.S. CONNECT CORP. 5175 WINSTAR0941 U.S. FIBERCOM 0643 WINSTAR0030 U.S. LONG DISTANCE, INC. 5918 WISTERIA LD SERVICE0070 U.S. LONG DISTANCE, INC. 0718 WKP, INC.0556 U.S. LONG DISTANCE, INC. 5203 WOODBURY TELEPHONE COMPANY0271 U.S. NETWORK 0649 WORKING ASSETS0298 U.S. NET, INC. 0842 WORLD ACCESS COMMUNICATIONS CORP. (WACC)

5972 U.S. ROBOTICS 5266 WORLD LINK, INC. 5877 U.S. SOUTH COMMUNICATIONS, INC. 0840 WORLD PASS COMMUNICATIONS CORP.0396 U.S. TELE-COMM, INC. 5978 WORLD TELECOMMUNICATIONS SERVICES, INC.0576 U.S.FIBERLINE COMMUNICATIONS, INC. 5254 WORLD WIDE CONNECT, INC.0878 VALLEY STAR-TEL 5916 WORLD WINDOW0010 VALLEY TELEPHONE LONG DISTANCE 6788 WORLDCALL COMMUNICATIONS INTERNATIONAL, INC.

5523 VALUE TEL 0001 WORLDCOM, INC.0817 VALUE-ADDED COMMUNICATIONS 0002 WORLDCOM, INC.

5759 VALULINE LONG DISTANCE 0006 WORLDCOM, INC.0662 VALULINE LONG DISTANCE 0008 WORLDCOM, INC.0678 VALU-LINE OF KANSAS, INC. 0011 WORLDCOM, INC.0859 VALU-LINE OF LONGVIEW, INC. 0021 WORLDCOM, INC.0889 VALU-LINE OF ST. JOSEPH 0031 WORLDCOM, INC.

5826 VANCOUVER TELEPHONE COMPANY LTD. 0050 WORLDCOM, INC.0636 VARTEC TELECOM dba CLEAR CHOICE COMMUNICATIONS 0053 WORLDCOM, INC.0595 VARTEC TELECOM, INC. 0055 WORLDCOM, INC.0811 VARTEC TELECOM, INC. 0080 WORLDCOM, INC.0818 VARTEC TELECOM, INC. 0084 WORLDCOM, INC.0275 VEND-TEL-CO., LTD. 0142 WORLDCOM, INC.0674 VENSER, INC. 0208 WORLDCOM, INC.

5915 VERA LONG DISTANCE 0212 WORLDCOM, INC.

41



CODE ASSIGNED TO0217 WORLDCOM, INC.0237 WORLDCOM, INC.0246 WORLDCOM, INC.0250 WORLDCOM, INC.0254 WORLDCOM, INC.0263 WORLDCOM, INC.0266 WORLDCOM, INC.0267 WORLDCOM, INC.0274 WORLDCOM, INC.0290 WORLDCOM, INC.0311 WORLDCOM, INC.0312 WORLDCOM, INC.0315 WORLDCOM, INC.0353 WORLDCOM, INC.0406 WORLDCOM, INC.0408 WORLDCOM, INC.0421 WORLDCOM, INC.0428 WORLDCOM, INC.0442 WORLDCOM, INC.0446 WORLDCOM, INC.0450 WORLDCOM, INC.0453 WORLDCOM, INC.0456 WORLDCOM, INC.0464 WORLDCOM, INC.0471 WORLDCOM, INC.0488 WORLDCOM, INC.0523 WORLDCOM, INC.0535 WORLDCOM, INC.0538 WORLDCOM, INC.0546 WORLDCOM, INC.0555 WORLDCOM, INC.0588 WORLDCOM, INC.0589 WORLDCOM, INC.0683 WORLDCOM, INC.0724 WORLDCOM, INC.0733 WORLDCOM, INC.0737 WORLDCOM, INC.0738 WORLDCOM, INC.0741 WORLDCOM, INC.0742 WORLDCOM, INC.0751 WORLDCOM, INC.0782 WORLDCOM, INC.0786 WORLDCOM, INC.0789 WORLDCOM, INC.0797 WORLDCOM, INC.0800 WORLDCOM, INC.0801 WORLDCOM, INC.0824 WORLDCOM, INC.0846 WORLDCOM, INC.0862 WORLDCOM, INC.0868 WORLDCOM, INC.0874 WORLDCOM, INC.0884 WORLDCOM, INC.0895 WORLDCOM, INC.0910 WORLDCOM, INC.0911 WORLDCOM, INC.0918 WORLDCOM, INC.0921 WORLDCOM, INC.0951 WORLDCOM, INC.0953 WORLDCOM, INC.0969 WORLDCOM, INC.0987 WORLDCOM, INC.0995 WORLDCOM, INC.0999 WORLDCOM, INC.0502 WORLDXCHANGE0629 WORLDXCHANGE0781 WXL COMMUNICATIONS, LTD.

5062 XCOM TECHNOLOGIES 6942 XIT COMMUNICATIONS0736 XNET, INC.0483 XPEDITE SYSTEMS, INC.0924 XTEL

6678 XTRACOM, INC.0766 YAVAPAI TELEPHONE EXCHANGE

5999 ZENEX LONG DISTANCE, INC.0756 ZEROPLUS DIALING, INC.

5933 ZIMMER WAY

42

TABLE 6500 CODE BALANCE SHEET

(AS OF MARCH 31, 1997)

NUMBERCODES OF CODES

ASSIGNED TO: BELL OPERATING COMPANIES 26SPRINT OPERATING COMPANIES 18CANADIAN CARRIERS 30OFFSHORE AND CARIBBEAN CARRIERS 4AT&T 87MCI 10310 OTHER COMPANIES 345

CODES NOT USABLE (211, 311, ETC.) 8CODES NOT USED FOR 500 SERVICE (000-199) 200CODE RESERVED FOR DIRECTORY ASSISTANCE (555) 1CODES RESERVED FOR CANADIAN USE 49RESERVED CODES 10UNASSIGNED CODES 212

TOTAL 1,000

TABLE 7NUMBER OF 500 CODES ASSIGNED

CODES TOTAL CODESYEAR ASSIGNED ASSIGNED

DURING AT ENDQUARTER OF QUARTER

1994 3RD QUARTER 116 1164TH QUARTER 163 279

1995 1ST QUARTER 66 3452ND QUARTER 25 3703RD QUARTER 60 4304TH QUARTER 26 454

1996 1ST QUARTER 18 4722ND QUARTER - 4723RD QUARTER 3 4754TH QUARTER 2 476

1997 1ST QUARTER 61 520

43

TABLE 8LIST OF 500 CODE ASSIGNMENTS

SORTED BY CODE(AS OF MARCH 31, 1997)

CODE ASSIGNED TO CODE ASSIGNED TO200 WKP, INC. 276 LDDS WORLDCOM201 INTERNATIONAL PRIVATE ACCESS 277 ARCH COMMUNICATIONS GROUP, INC.202 ALLTEL SERVICE CORP. 278 CN COMMUNICATIONS206 COOK TELECOM, INC. 279 ARCH COMMUNICATIONS GROUP, INC.207 AT&T 280 SPRINT / UNITED TELEPHONE OF MINNESOTA208 AT&T 281 COLUMBUS TELEPHONE COMPANY, INC.209 AT&T 282 U.S. WEST NEWVECTOR GROUP, INC.210 AT&T 283 CENTURY TELEPHONE ENTERPRISES, INC.212 AT&T 284 BTI213 AT&T 285 OREGON FARMERS MUTUAL TELEPHONE CO.214 AT&T 286 SPRINT / CENTRAL TELEPHONE - NEVADA215 AT&T 287 LDDS WORLDCOM216 AT&T 288 AT&T217 AT&T 289 PACIFIC BELL MOBILE SERVICES218 AT&T 290 LAHARPE TELEPHONE COMPANY, INC.219 AT&T 291 LAKEDALE TELEPHONE COMPANY220 DIAL CALL, INC. 292 BRAZORIA TELEPHONE COMPANY221 MICROCELL 1-2-1 293 AT&T222 WHIDBEY TELEPHONE CO. 294 CABLE & WIRELESS, INC.223 CABLE & WIRELESS, INC. 295 AT&T224 BELL ATLANTIC NETWORK SERVICES 296 AT&T225 TIME WARNER TELECOMMUNICATIONS 297 AT&T226 BELL ATLANTIC MOBILE 298 AT&T227 AMERITECH MOBILE COMMUNICATIONS, INC. 299 NYNEX MOBILE COMMUNICATIONS CO.228 CINCINNATI BELL TELEPHONE 300 DELTACOM, INC.229 CABLE & WIRELESS, INC. 302 MORRIS COMMUNICATIONS, INC.230 PCC MANAGEMENT 303 BELL MOBILITY231 PCC MANAGEMENT 304 CHESTER TELEPHONE COMPANY232 NEXTEL COMMUNICATIONS, INC. 305 OMNI III CABLE T.V., INC.233 COLONIAL COMMUNICATION SYSTEMS, INC. 306 SASKTEL MOBILITY234 SWAYZEE TELEPHONE BROADBAND, INC. 315 SCHERERS COMMUNICATIONS GROUP, INC.235 TRIAD MINNESOTA CELLULAR L. P. 316 CRUISEPHONE, INC.236 NORTHEAST TELEPHONE COMPANY 320 SPRINT / UNITED TELEPHONE OF MISSOURI237 OPERATOR SERVICE COMPANY 321 MICROCELL 1-2-1238 ADVANCED RADIO TECHNOLOGIES CORP. 323 SCHNEIDER COMMUNICATIONS, INC.239 BENTLEYVILLE TELEPHONE COMPANY 324 MANKATO CITIZENS TELEPHONE CO.240 CENTENNIAL CELLULAR CORPORATION 325 PENNSYLVANIA TELEPHONE CO.241 VANGUARD CELLULAR SYSTEMS, INC. 326 OMAHA CELLULAR LIMITED PARTNERSHIP242 ROCK HILL TELEPHONE COMPANY 327 STARTEC, INC.243 NPB TELECOM 328 BC TEL MOBILITY CELLULAR, INC.244 TELEPHONE ELECTRONICS 329 CMT PARTNERS245 BUDGET CALL LONG DISTANCE, INC. 332 FREEMAN ENGINEERING ASSOCIATES, INC.246 WINSTAR 334 THE PINE TREE TELEPHONE & TELEGRAPH CO.247 UNITED STATES CELLULAR CORPORATION 337 VENTURES IN PAGING249 SPRINT / CAROLINA TELEPHONE 338 PAGEX COMPANY250 EASTERN TELECOM 340 SPRINT / UNITED TELEPHONE OF NEBRASKA251 PARALLAX, INC. 342 PACIFIC BELL MOBILE SERVICES252 BERMUDA TELEPHONE COMPANY, LTD. 343 VALU-LINE OF KANSAS, INC.253 CONCORD TELEPHONE COMPANY 344 ALL CITY PAGING254 SPRINT / UNITED TELEPHONE OF TENNESSEE 345 LOS ANGELES CELLULAR TELEPHONE COMPANY255 VBI, INC. 346 AT&T256 ALLNET COMMUNICATION SERVICES, INC. 347 EASTERN TELELOGIC CORP.257 BELLSOUTH TELECOMMUNICATIONS, INC. 348 COM NET, INC.258 BELL ATLANTIC MOBILE 349 OMEGA CELLULAR PARTNERS, L.C.259 SPRINT / UNITED TEL. OF SOUTH CAROLINA 350 RESPONSE TELEMEDIA260 MINNESOTA RSA 10 LIMITED PARTNERSHIP 352 JEROME FREUND261 AMERITECH COMMUNICATIONS INC. (ACI) 353 FRONTIER COMMUNICATIONS INTERNATIONAL, INC.262 ALLTEL MOBILE COMMUNICATIONS 354 HINTON TELEPHONE COMPANY263 AT&T 356 TDS TELECOM264 BELLSOUTH WIRELESS, INC. 357 PAGING SYSTEMS, INC.265 MCI 359 AT&T266 QUALICOM, INC. 362 SWAYZEE TELEPHONE COMPANY, INC.267 BEGGS TELEPHONE COMPANY 364 DIGITAL NETWORK, INC.268 CONQUEST COMMUNICATIONS CORP. 365 U.S. ADVANTAGE LONG DISTANCE, INC.269 AMERITECH MOBILE COMMUNICATIONS, INC. 367 AT&T272 AMERICAN PCS, L.P. dba APC 368 PAGING SYSTEMS, INC.273 BATON ROUGE CELLULAR TELEPHONE CO. 369 BELL ATLANTIC NETWORK SERVICES274 AMERICAN PAGING, INC. 370 HIAWATHALAND CELLULAR LIMITED PARTNERSHIP275 PAGEMART, INC. 371 AT&T

44

TABLE 8LIST OF 500 CODE ASSIGNMENTS--CONTINUED


CODE ASSIGNED TO CODE ASSIGNED TO372 OT&T COMMUNICATIONS, INC. 477 PCS PRIMECO373 PACIFIC BELL MOBILE SERVICES 478 ALASCOM, INC.374 PIONEER LONG DISTANCE, INC. 479 GRANITE STATE TELEPHONE, INC.375 PIONEER TELEPHONE COOP., INC. (OKLAHOMA) 480 GTE MOBILE COMMUNICATIONS376 INFONET LONG DISTANCE, L.L.C. 481 AT&T377 CENTRAL OKLAHOMA TELEPHONE COMPANY 482 COMMUNITY SERVICE TELEPHONE378 WEST LIBERTY TELEPHONE COMPANY 483 GTE TELEPHONE OPERATIONS380 DAKOTA CELLULAR, INC. 484 TELECOM*USA382 ELKHART TELEPHONE CO. 485 AT&T383 ATLANTIC CELL. CO., L.P. dba ATLANTIC LONG DISTANCE 486 EGYPTIAN TELEPHONE COOPERATIVE ASSN.384 TELECALL LONG DISTANCE, INC. 487 U.S. INTELCO NETWORKS, INC.385 GRAND TELEPHONE COMPANY, INC. 488 AT&T386 JEFFERSON TELEPHONE COMPANY 489 AT&T387 VI-TEL, INC. 490 AT&T388 AT&T 491 AT&T389 AT&T 492 ARMOUR INDEPENDENT TELEPHONE CO.390 AT&T 493 AT&T391 AT&T 494 AT&T392 AT&T 495 MID-COM COMMUNICATIONS, INC.393 CABLEVISION SYSTEM CORPORATION 496 AT&T400 AIRTOUCH COMMUNICATIONS 497 AT&T404 COMMUNICATIONS INNOVATIONS CORP. 498 AT&T405 TRIAD OKLAHOMA CELLULAR L.P. 499 CAL-ONE CELLULAR, L.P.414 HEBENSTREIT COMMUNICATIONS CORP. 500 COMTECH INC.415 CORPORATE TECHNOLOGY PARTNERS (CTP) 501 AT&T423 TRI COUNTY TELEPHONE COMPANY, INC. 502 AT&T424 GCI CORPORATION 503 AWESOME PAGING, INC.425 GLACIAL LAKE CELLULAR LIMITED PARTNERSHIP 504 AT&T426 WIRELESS ONE NETWORK 505 SOUTHWESTERN BELL TELEPHONE CO.427 WABASH TELEPHONE COOPERATIVE, INC. 506 SOUTHWESTERN BELL TELEPHONE CO.428 RINGGOLD TELEPHONE COMPANY 507 SOUTHWESTERN BELL TELEPHONE CO.429 NORTH COUNTY COMMUNICATIONS CORP. 508 SOUTHWESTERN BELL TELEPHONE CO.430 AT&T 509 AT&T431 AT&T 510 ONECOMM COMMUNICATIONS CORPORATION432 AT&T 512 AT&T433 AT&T 513 AT&T434 CHEROKEE TELEPHONE CO. 514 AT&T435 RURAL CELLULAR CORPORATION 515 FRONTIER LONG DISTANCE OF AMERICA, INC.436 GEOTEK COMMUNICATIONS, INC. 516 AT&T437 AT&T 517 AT&T438 ACCESSLINE TECHNOLOGIES, INC. 518 AT&T439 KALIDA TELEPHONE COMPANY, INC. 519 AT&T441 NORTHEAST CELLULAR TELEPHONE COMPANY 520 AT&T442 AT&T 521 WOOD COUNTY TELEPHONE COMPANY443 AT&T 522 STANDISH TELEPHONE CO.444 ONCOR COMMUNICATIONS, INC. 523 AT&T445 AT&T 524 LCI INTERNATIONAL, INC.446 AT&T 525 EASTERN TELECOM447 AT&T 526 POKA LAMBRO COMMUNICATIONS448 AT&T 527 SHERBURNE LONG DISTANCE449 AT&T 528 LUFKIN-CONROE TELEPHONE EXCHANGE450 USLINK, INC. 529 UNITED STATES CELLULAR CORPORATION452 MCCLURE TELEPHONE COMPANY 532 EGYPTIAN COMMUNICATION SERVICES, INC.453 SPECTRANET, INC. 533 MCI454 WIRELESS ONE NETWORK 534 OK CELL., MANAGING PARTNER FOR OK RSA 6 PARTNERSHIP455 TELECONCEPTS, INC. dba TELEPHONE EXPRESS 535 HORRY TELEPHONE COOPERATIVE456 UNICOM CORPORATION (SOUTH CAROLINA) 536 CAMERON COMMUNICATIONS CORPORATION462 FLAT ROCK TELEPHONE COOPERATIVE, INC. 537 COMMUNICATION TELESYSTEMS INTERNATIONAL (CTS)463 CROSS TELEPHONE COMPANY 538 NORTH COUNTRY TELEPHONE COMPANY464 INTELLICOM 539 WINN TELEPHONE COMPANY465 THE SYCAMORE TELEPHONE COMPANY 540 CALL ONE, INC.466 FRONTIER COMMUNICATIONS OF MID ATLANTIC, INC. 542 BETTLES TELEPHONE COMPANY467 ACC CORP. 543 PAGEMART, INC.468 INTERELECTRONICS CORPORATION 544 UTILITIES, INC.469 BT TELECOM, INC. 545 GST CALL AMERICA472 SHOREHAM TELEPHONE COMPANY, INC. 546 TELECOMMUNICATIONS PREMIUM SERVICES473 LENNON TELEPHONE COMPANY 547 LIBERTY CELLULAR, INC.474 FISHERS ISLAND TELEPHONE 548 COMPUCELL, INC.476 CIMMARON TELEPHONE CO. 550 MCI

45



CODE ASSIGNED TO CODE ASSIGNED TO551 MCI 673 AT&T552 MCI 674 AT&T553 MCI 675 AT&T554 IAN, INC. 676 NORCOM NETWORKS CORPORATION556 WILKES TELEPHONE & ELECTRIC COMPANY 677 AT&T557 AIR CELL, INC. 678 NYNEX MOBILE COMMUNICATIONS CO.558 JSM TELE-PAGE, INC. 679 AT&T562 POTTAWATOMIE TELEPHONE CO. 682 NATIONAL TELEPHONE OF ALABAMA, INC.563 OKLAHOMA WESTERN TELEPHONE COMPANY 684 PTI COMMUNICATIONS, INC.564 ADAMS TELSYSTEMS, INC. 687 MTS MOBILITY566 ROSEVILLE TELEPHONE COMPANY 688 MT&T MOBILITY567 PEOPLES TELEPHONE COMPANY 690 PILGRIM TELEPHONE COMPANY568 THE FORT JENNINGS TELEPHONE COMPANY 691 MOBILETEL, INC.569 SNET MOBILECOM, INC 692 COMMUNICATION OPTIONS, INC. (FLORIDA)577 LANSER PERSONAL COMMUNICATIONS 693 LAFOURCHE TELEPHONE COMPANY, INC.581 LDDS WORLDCOM 696 ADAMS TELEPHONE CO-OPERATIVE582 INTERNATIONAL SATELLITE INTEGRATION SVCS., INC. 699 NYNEX583 AT&T 700 AIRTOUCH COMMUNICATIONS584 AT&T 720 SOUTHWESTERN BELL MOBILE SYSTEMS585 PACIFIC TELECOM CELLULAR, INC. 721 SOUTHWESTERN BELL MOBILE SYSTEMS586 AT&T 722 SOUTHWESTERN BELL MOBILE SYSTEMS587 HUTCHINSON TELEPHONE COMPANY 723 RADIOFONE, INC.588 LINCOLN TELEPHONE AND TELEGRAPH 724 PITTENCRIEFF COMMUNICATIONS, INC.589 AT&T 725 PITTENCRIEFF COMMUNICATIONS, INC.600 AIRTOUCH COMMUNICATIONS 726 OMNIPOINT CORPORATION610 ADVANCED TELECOM SERVICES, INC. 728 COMSAT CORP.612 BAY STAR COMMS. dba BAY STAR SATELLITE COMMS. 729 SPRINT / UNITED TELEPHONE OF PENNSYLVANIA614 SPRINT CELLULAR COMPANY 730 CELLULAR 7 PARTNERSHIP620 TRILLIUM CELLULAR CORP. 732 LDDS WORLDCOM622 MAINSTREET COMMUNICATIONS 733 RED ROSE COMMUNICATIONS, INC.623 WMW CABLE TV COMPANY 734 ISLAND TEL MOBILITY624 OMNIPOINT CORPORATION 735 NEWTEL MOBILITY625 CMT PARTNERS 736 CANADIAN VALLEY TELEPHONE COMPANY626 PARKWAY COMMUNICATIONS, INC. 737 PAGENET627 CLEARTEL COMMUNICATIONS 738 PAGENET628 NB TEL MOBILITY 739 INTERNATIONAL TELESERVICES LTD629 HAMILTON TELEPHONE COMPANY 740 AT&T630 AMERICAN PORTABLE TELECOM 741 CELLULAR HOLDING, INC.632 NATIONAL DISPATCH CENTER 742 BIXBY TELEPHONE COMPANY635 AT&T 743 CIM-TEL CABLE, INC.636 AMERICAN PCS, L.P. dba APC 744 CROSS CABLE TELEVISION637 TC - SYSTEMS 745 SHENANDOAH TELEPHONE COMPANY638 NEW CELL, INC. 746 AMERITECH MOBILE COMMUNICATIONS, INC.639 NEXTEL COMMUNICATIONS, INC. 747 GENESEO TELEPHONE COMPANY641 DEADWOOD CELLULAR 748 KALEVA TELEPHONE COMPANY642 JEFFERSON TELEPHONE CO. 749 DURANGO CELLULAR TELEPHONE CO.644 BN1 TELECOMMUNICATIONS, INC. 752 POINT TELESYSTEMS, INC.645 CITIZENS TELEPHONE COMPANY (GA) 753 COMCAST CELLULAR COMMUNICATIONS, INC.646 REDWOOD COUNTY TELEPHONE COMPANY 754 TWO WAY RADIO OF CAROLINA, INC.647 UNION TELEPHONE COMPANY (SD) 755 UNITED STATES CELLULAR CORPORATION650 CHAMPAIGN TELEPHONE CO. 756 POKA LAMBRO COMMUNICATIONS651 SPRINT / UNITED TELEPHONE OF NEW JERSEY 757 SPRINGWICH CELLULAR LIMITED PARTNERSHIP652 COBBOSSEECONTEE TELEPHONE & TELEGRAPH 758 AMSC SUBSIDIARY CORPORATION653 BARAGA TELEPHONE CO. 760 AMSC SUBSIDIARY CORPORATION654 HOOPER TELEPHONE COMPANY 761 TMI COMMUNICATIONS655 AMERICAN SHARECOM, INC. 762 RESERVE COMMUNICATIONS & COMPUTER CORP.656 CITIZENS TELEPHONE CO. OF KECKSBURG 763 SNET CO.657 NATIONAL TELECOMMUNICATIONS OF FLORIDA, INC. 764 PREFERRED NETWORKS, INC.658 SOUTH HOLT CABLEVISION, INC. 765 HARMONY TELEPHONE COMPANY659 COLUMBUS GROVE TELEPHONE COMPANY 766 FCCA, L.L.C.661 AMERITECH MOBILE COMMUNICATIONS, INC. 767 ED TEL MOBILITY662 ROGERS CANTEL MOBILE INC. 768 HARMONY CABLE, INC.663 AT&T 769 OHIO STATE CELLULAR PHONE COMPANY, INC.664 AT&T 770 VIRGIN ISLANDS TELEPHONE CORPORATION665 AT&T 771 STRATEGIC PRODUCTS CORPORATION666 NATIONWIDE WIRELESS NETWORK 772 MESSAGE CENTER USA667 CHILLICOTHE TELEPHONE COMPANY 773 ADAMS CELLULAR, INC.668 MOBILECOM ONE, LLC 774 SNET PAGING, INC.672 AT&T 775 SEVEN SEAS COMMUNICATIONS, INC.

46



CODE ASSIGNED TO CODE ASSIGNED TO776 AT&T 884 SPRINT / UNITED TELEPHONE OF INDIANA777 COMCAST CELLULAR COMMUNICATIONS, INC. 885 SPRINT / UNITED TELEPHONE CO. OF KANSAS778 FROMM SERVICES, INC. dba THE AN-SER SYSTEM 886 SPRINT / UNITED TELEPHONE COMPANY OF OHIO779 PUERTO RICO TELEPHONE COMPANY 887 TELECOM*USA782 ROANOKE TELCO 888 METROCALL, INC.783 STEELVILLE TELEPHONE EXCHANGE, INC. 889 TELECOM*USA784 RAM TECHNOLOGIES 892 EVANS TELEPHONE CO.785 AT&T 898 AIR PAGE CORPORATION786 SPRINT / UNITED TELEPHONE OF FLORIDA 900 TELEZONE CORPORATION787 FIRSTPAGE USA 907 GCI CORPORATION788 SPRINT / UNITED TELEPHONE CO. OF TEXAS 909 PILGRIM TELEPHONE COMPANY789 WEST IOWA TELEPHONE COMPANY 925 WINCEL CELLULAR CORPORATION792 CAMPTI - PLEASANT HILL TELEPHONE CO., INC. 926 ZENEX LONG DISTANCE800 AIRTOUCH COMMUNICATIONS 927 OKLAHOMA RSA 2-PIONEER CELL., MANAGING PARTNER801 TRIAD UTAH CELLULAR L.P. 928 CHOCTAW TELEPHONE COMPANY806 TRIAD TEXAS CELLULAR L.P. 932 ENID CELLULAR807 AT&T 936 OLD SPA SHOP ANTIQUES808 PAC-WEST TELECOMM, INC. dba AMERICALL 937 U.S. INTELCO NETWORKS, INC.813 PINE BELT TELEPHONE CO., INC. dba PBC L.D. 938 WKP, INC.818 VARTEC TELECOM 943 CONSOLIDATED TELCO INC.822 ONEONTA TELEPHONE CO. 945 LDDS WORLDCOM823 TRI-TOUCH AMERICA 946 SPRINT / CENTEL OF NORTH CAROLINA824 TC - SYSTEMS 947 QUESTAR TELECOM, INC.825 OPERATOR SERVICE COMPANY 950 THE ANSWER NETWORK (ANI COMMUNICATIONS)826 VANGUARD CELLULAR SYSTEMS, INC. 951 INTERACTIVE TELECOM NETWORK, INC.827 THUNDER BAY CELLULAR MOBILITY 955 MINNESOTA RSA 9 LIMITED PARTNERSHIP828 UINTAH BASIN TELEPHONE ASSOCIATION 957 RESERVE TELEPHONE COMPANY829 ADAMS TELECOMMUNICATIONS, INC. 966 WIRELESS ONE NETWORK830 AT&T 967 TOUCH 1 COMMUNICATIONS831 AT&T 968 CENTURY TELEPHONE ENTERPRISES, INC.832 BAY SPRINGS TELEPHONE CO., INC. 969 CLEARNET INC.833 AT&T 972 WESTERN PCS CORPORATION834 AT&T 973 USA MOBILE COMMUNICATIONS, INC. II835 QUEBECTEL MOBILITE 978 J.Q. TURNER & ASSOCIATES, INC.837 TELEPHONE ASSOCIATES LONG DISTANCE SERVICES, INC. 987 AGT MOBILITY, INC.838 LAWTON CABLEVISION, INC. 988 WEST TENNESSEE TELEPHONE CO.840 NATIONWIDE PAGING, INC. 989 ORION TELECOM841 GULF TELEPHONE COMPANY842 ORWELL TELEPHONE COMPANY843 COX ENTERPRISES, INC.844 HICKORY TELEPHONE COMPANY845 MARSHALL CELLULAR PARTNERSHIP846 GTE MOBILE COMMUNICATIONS847 PUBLIC SERVICE CELLULAR, INC.848 VAUGHNSVILLE TELEPHONE COMPANY, INC.850 EASTERN TELECOM852 FRONTIER LONG DISTANCE OF NEW YORK, INC.853 VISIONS LONG DISTANCE AMERICA, INC.855 UNION TELEPHONE COMPANY862 USA MOBILE COMMUNICATIONS, INC. II863 TELECOM SERVICES OF TRINIDAD AND TOBAGO864 AT&T CANADA LONG DISTANCE SERVICES CO.865 CROCKETT TELEPHONE COMPANY866 ISLAND TEL867 NEWFOUNDLAND TELEPHONE868 NB TEL869 SASKTEL870 MARITIME TEL & TEL871 AGT LIMITED872 TEL/LOGIC INC.873 MANITOBA TELEPHONE SYSTEM874 BELL CANADA875 U S SIGNAL CORP.876 OK RSA5 E. PTSHIP. - PIONEER CELL., MANAGING PARTNER877 SPRINT COMMUNICATIONS CO., L.P.878 BC TEL.879 US WEST COMMUNICATIONS, INC.882 SPRINT / CENTEL OF VIRGINIA883 TELECOM*USA

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CODE ASSIGNED TO CODE ASSIGNED TO467 ACC CORP. 583 AT&T438 ACCESSLINE TECHNOLOGIES, INC. 584 AT&T773 ADAMS CELLULAR, INC. 586 AT&T829 ADAMS TELECOMMUNICATIONS, INC. 518 AT&T696 ADAMS TELEPHONE CO-OPERATIVE 635 AT&T564 ADAMS TELSYSTEMS, INC. 516 AT&T238 ADVANCED RADIO TECHNOLOGIES CORP. 677 AT&T610 ADVANCED TELECOM SERVICES, INC. 675 AT&T871 AGT LIMITED 663 AT&T987 AGT MOBILITY, INC. 664 AT&T557 AIR CELL, INC. 665 AT&T898 AIR PAGE CORPORATION 672 AT&T600 AIRTOUCH COMMUNICATIONS 519 AT&T700 AIRTOUCH COMMUNICATIONS 481 AT&T800 AIRTOUCH COMMUNICATIONS 517 AT&T400 AIRTOUCH COMMUNICATIONS 496 AT&T478 ALASCOM, INC. 498 AT&T344 ALL CITY PAGING 488 AT&T256 ALLNET COMMUNICATION SERVICES, INC. 489 AT&T262 ALLTEL MOBILE COMMUNICATIONS 490 AT&T202 ALLTEL SERVICE CORP. 432 AT&T274 AMERICAN PAGING, INC. 493 AT&T636 AMERICAN PCS, L.P. dba APC 494 AT&T272 AMERICAN PCS, L.P. dba APC 485 AT&T630 AMERICAN PORTABLE TELECOM 497 AT&T655 AMERICAN SHARECOM, INC. 514 AT&T261 AMERITECH COMMUNICATIONS INC. (ACI) 501 AT&T227 AMERITECH MOBILE COMMUNICATIONS, INC. 502 AT&T746 AMERITECH MOBILE COMMUNICATIONS, INC. 504 AT&T269 AMERITECH MOBILE COMMUNICATIONS, INC. 509 AT&T661 AMERITECH MOBILE COMMUNICATIONS, INC. 512 AT&T758 AMSC SUBSIDIARY CORPORATION 513 AT&T760 AMSC SUBSIDIARY CORPORATION 346 AT&T277 ARCH COMMUNICATIONS GROUP, INC. 674 AT&T279 ARCH COMMUNICATIONS GROUP, INC. 288 AT&T492 ARMOUR INDEPENDENT TELEPHONE CO. 293 AT&T383 ATLANTIC CELLULAR CO., L.P. dba ATLANTIC LONG DISTANCE 216 AT&T447 AT&T 217 AT&T830 AT&T 218 AT&T446 AT&T 213 AT&T834 AT&T 219 AT&T807 AT&T 215 AT&T833 AT&T 295 AT&T367 AT&T 296 AT&T448 AT&T 673 AT&T359 AT&T 214 AT&T831 AT&T 298 AT&T371 AT&T 210 AT&T776 AT&T 207 AT&T390 AT&T 263 AT&T389 AT&T 208 AT&T430 AT&T 209 AT&T431 AT&T 297 AT&T391 AT&T 212 AT&T433 AT&T 864 AT&T CANADA LONG DISTANCE SERVICES CO.785 AT&T 503 AWESOME PAGING, INC.445 AT&T 653 BARAGA TELEPHONE CO.437 AT&T 273 BATON ROUGE CELLULAR TELEPHONE CO.388 AT&T 832 BAY SPRINGS TELEPHONE CO., INC.442 AT&T 612 BAY STAR COMMS. dba BAY STAR SATELLITE COMMS.443 AT&T 328 BC TEL MOBILITY CELLULAR, INC.392 AT&T 878 BC TEL.491 AT&T 267 BEGGS TELEPHONE COMPANY449 AT&T 258 BELL ATLANTIC MOBILE589 AT&T 226 BELL ATLANTIC MOBILE679 AT&T 224 BELL ATLANTIC NETWORK SERVICES520 AT&T 369 BELL ATLANTIC NETWORK SERVICES523 AT&T 874 BELL CANADA740 AT&T 303 BELL MOBILITY

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CODE ASSIGNED TO CODE ASSIGNED TO257 BELLSOUTH TELECOMMUNICATIONS, INC. 364 DIGITAL NETWORK, INC.264 BELLSOUTH WIRELESS, INC. 749 DURANGO CELLULAR TELEPHONE CO.239 BENTLEYVILLE TELEPHONE COMPANY 525 EASTERN TELECOM252 BERMUDA TELEPHONE COMPANY, LTD. 850 EASTERN TELECOM542 BETTLES TELEPHONE COMPANY 250 EASTERN TELECOM742 BIXBY TELEPHONE COMPANY 347 EASTERN TELELOGIC CORP.644 BN1 TELECOMMUNICATIONS, INC. 767 ED TEL MOBILITY292 BRAZORIA TELEPHONE COMPANY 532 EGYPTIAN COMMUNICATION SERVICES, INC.469 BT TELECOM, INC. 486 EGYPTIAN TELEPHONE COOPERATIVE ASSN.284 BTI 382 ELKHART TELEPHONE CO.245 BUDGET CALL LONG DISTANCE, INC. 932 ENID CELLULAR223 CABLE & WIRELESS, INC. 892 EVANS TELEPHONE CO.229 CABLE & WIRELESS, INC. 766 FCCA, L.L.C.294 CABLE & WIRELESS, INC. 787 FIRSTPAGE USA393 CABLEVISION SYSTEM CORPORATION 474 FISHERS ISLAND TELEPHONE540 CALL ONE, INC. 462 FLAT ROCK TELEPHONE COOPERATIVE, INC.499 CAL-ONE CELLULAR, L.P. 332 FREEMAN ENGINEERING ASSOCIATES, INC.536 CAMERON COMMUNICATIONS CORPORATION 778 FROMM SERVICES, INC. dba THE AN-SER SYSTEM792 CAMPTI - PLEASANT HILL TELEPHONE CO., INC. 353 FRONTIER COMMUNICATIONS INTERNATIONAL, INC.736 CANADIAN VALLEY TELEPHONE COMPANY 466 FRONTIER COMMUNICATIONS OF MID ATLANTIC, INC.730 CELLULAR 7 PARTNERSHIP 515 FRONTIER LONG DISTANCE OF AMERICA, INC.741 CELLULAR HOLDING, INC. 852 FRONTIER LONG DISTANCE OF NEW YORK, INC.240 CENTENNIAL CELLULAR CORPORATION 424 GCI CORPORATION377 CENTRAL OKLAHOMA TELEPHONE COMPANY 907 GCI CORPORATION283 CENTURY TELEPHONE ENTERPRISES, INC. 747 GENESEO TELEPHONE COMPANY968 CENTURY TELEPHONE ENTERPRISES, INC. 436 GEOTEK COMMUNICATIONS, INC.650 CHAMPAIGN TELEPHONE CO. 425 GLACIAL LAKE CELLULAR LIMITED PARTNERSHIP434 CHEROKEE TELEPHONE CO. 385 GRAND TELEPHONE COMPANY, INC.304 CHESTER TELEPHONE COMPANY 479 GRANITE STATE TELEPHONE, INC.667 CHILLICOTHE TELEPHONE COMPANY 545 GST CALL AMERICA928 CHOCTAW TELEPHONE COMPANY 480 GTE MOBILE COMMUNICATIONS476 CIMMARON TELEPHONE CO. 846 GTE MOBILE COMMUNICATIONS743 CIM-TEL CABLE, INC. 483 GTE TELEPHONE OPERATIONS228 CINCINNATI BELL TELEPHONE 841 GULF TELEPHONE COMPANY645 CITIZENS TELEPHONE COMPANY (GA) 629 HAMILTON TELEPHONE COMPANY656 CITIZENS TELEPHONE CO. OF KECKSBURG 768 HARMONY CABLE, INC.969 CLEARNET INC. 765 HARMONY TELEPHONE COMPANY627 CLEARTEL COMMUNICATIONS 414 HEBENSTREIT COMMUNICATIONS CORP.625 CMT PARTNERS 370 HIAWATHALAND CELLULAR LIMITED PARTNERSHIP329 CMT PARTNERS 844 HICKORY TELEPHONE COMPANY278 CN COMMUNICATIONS 354 HINTON TELEPHONE COMPANY652 COBBOSSEECONTEE TELEPHONE & TELEGRAPH 654 HOOPER TELEPHONE COMPANY233 COLONIAL COMMUNICATION SYSTEMS, INC. 535 HORRY TELEPHONE COOPERATIVE659 COLUMBUS GROVE TELEPHONE COMPANY 587 HUTCHINSON TELEPHONE COMPANY281 COLUMBUS TELEPHONE COMPANY, INC. 554 IAN, INC.348 COM NET, INC. 376 INFONET LONG DISTANCE, L.L.C.777 COMCAST CELLULAR COMMUNICATIONS, INC. 464 INTELLICOM753 COMCAST CELLULAR COMMUNICATIONS, INC. 951 INTERACTIVE TELECOM NETWORK, INC.692 COMMUNICATION OPTIONS, INC. (FLORIDA) 468 INTERELECTRONICS CORPORATION537 COMMUNICATION TELESYSTEMS INTERNATIONAL (CTS) 201 INTERNATIONAL PRIVATE ACCESS404 COMMUNICATIONS INNOVATIONS CORP. 582 INTERNATIONAL SATELLITE INTEGRATION SVCS., INC.482 COMMUNITY SERVICE TELEPHONE 739 INTERNATIONAL TELESERVICES LTD548 COMPUCELL, INC. 866 ISLAND TEL728 COMSAT CORP. 734 ISLAND TEL MOBILITY500 COMTECH INC. 386 JEFFERSON TELEPHONE COMPANY253 CONCORD TELEPHONE COMPANY 642 JEFFERSON TELEPHONE CO.268 CONQUEST COMMUNICATIONS CORP. 352 JEROME FREUND943 CONSOLIDATED TELCO INC. 558 JSM TELE-PAGE, INC.206 COOK TELECOM, INC. 978 J.Q. TURNER & ASSOCIATES, INC.415 CORPORATE TECHNOLOGY PARTNERS (CTP) 748 KALEVA TELEPHONE COMPANY843 COX ENTERPRISES, INC. 439 KALIDA TELEPHONE COMPANY, INC.865 CROCKETT TELEPHONE COMPANY 693 LAFOURCHE TELEPHONE COMPANY, INC.744 CROSS CABLE TELEVISION 290 LAHARPE TELEPHONE COMPANY, INC.463 CROSS TELEPHONE COMPANY 291 LAKEDALE TELEPHONE COMPANY316 CRUISEPHONE, INC. 577 LANSER PERSONAL COMMUNICATIONS380 DAKOTA CELLULAR, INC. 838 LAWTON CABLEVISION, INC.641 DEADWOOD CELLULAR 524 LCI INTERNATIONAL, INC.300 DELTACOM, INC. 945 LDDS WORLDCOM220 DIAL CALL, INC. 287 LDDS WORLDCOM

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CODE ASSIGNED TO CODE ASSIGNED TO581 LDDS WORLDCOM 285 OREGON FARMERS MUTUAL TELEPHONE CO.276 LDDS WORLDCOM 989 ORION TELECOM732 LDDS WORLDCOM 842 ORWELL TELEPHONE COMPANY473 LENNON TELEPHONE COMPANY 372 OT&T COMMUNICATIONS, INC.547 LIBERTY CELLULAR, INC. 373 PACIFIC BELL MOBILE SERVICES588 LINCOLN TELEPHONE AND TELEGRAPH 289 PACIFIC BELL MOBILE SERVICES345 LOS ANGELES CELLULAR TELEPHONE COMPANY 342 PACIFIC BELL MOBILE SERVICES528 LUFKIN-CONROE TELEPHONE EXCHANGE 585 PACIFIC TELECOM CELLULAR, INC.622 MAINSTREET COMMUNICATIONS 808 PAC-WEST TELECOMM, INC. dba AMERICALL873 MANITOBA TELEPHONE SYSTEM 275 PAGEMART, INC.324 MANKATO CITIZENS TELEPHONE CO. 543 PAGEMART, INC.870 MARITIME TEL & TEL 738 PAGENET845 MARSHALL CELLULAR PARTNERSHIP 737 PAGENET452 MCCLURE TELEPHONE COMPANY 338 PAGEX COMPANY265 MCI 357 PAGING SYSTEMS, INC.551 MCI 368 PAGING SYSTEMS, INC.550 MCI 251 PARALLAX, INC.533 MCI 626 PARKWAY COMMUNICATIONS, INC.553 MCI 230 PCC MANAGEMENT552 MCI 231 PCC MANAGEMENT772 MESSAGE CENTER USA 477 PCS PRIMECO888 METROCALL, INC. 325 PENNSYLVANIA TELEPHONE CO.321 MICROCELL 1-2-1 567 PEOPLES TELEPHONE COMPANY221 MICROCELL 1-2-1 690 PILGRIM TELEPHONE COMPANY495 MID-COM COMMUNICATIONS, INC. 909 PILGRIM TELEPHONE COMPANY260 MINNESOTA RSA 10 LIMITED PARTNERSHIP 813 PINE BELT TELEPHONE CO., INC. dba PBC L.D.955 MINNESOTA RSA 9 LIMITED PARTNERSHIP 374 PIONEER LONG DISTANCE, INC.668 MOBILECOM ONE, LLC 375 PIONEER TELEPHONE COOP., INC. (OKLAHOMA)691 MOBILETEL, INC. 725 PITTENCRIEFF COMMUNICATIONS, INC.302 MORRIS COMMUNICATIONS, INC. 724 PITTENCRIEFF COMMUNICATIONS, INC.687 MTS MOBILITY 752 POINT TELESYSTEMS, INC.688 MT&T MOBILITY 526 POKA LAMBRO COMMUNICATIONS632 NATIONAL DISPATCH CENTER 756 POKA LAMBRO COMMUNICATIONS657 NATIONAL TELECOMMUNICATIONS OF FLORIDA, INC. 562 POTTAWATOMIE TELEPHONE CO.682 NATIONAL TELEPHONE OF ALABAMA, INC. 764 PREFERRED NETWORKS, INC.840 NATIONWIDE PAGING, INC. 684 PTI COMMUNICATIONS, INC.666 NATIONWIDE WIRELESS NETWORK 847 PUBLIC SERVICE CELLULAR, INC.868 NB TEL 779 PUERTO RICO TELEPHONE COMPANY628 NB TEL MOBILITY 266 QUALICOM, INC.638 NEW CELL, INC. 835 QUEBECTEL MOBILITE867 NEWFOUNDLAND TELEPHONE 947 QUESTAR TELECOM, INC.735 NEWTEL MOBILITY 723 RADIOFONE, INC.232 NEXTEL COMMUNICATIONS, INC. 784 RAM TECHNOLOGIES639 NEXTEL COMMUNICATIONS, INC. 733 RED ROSE COMMUNICATIONS, INC.676 NORCOM NETWORKS CORPORATION 646 REDWOOD COUNTY TELEPHONE COMPANY538 NORTH COUNTRY TELEPHONE COMPANY 762 RESERVE COMMUNICATIONS & COMPUTER CORP.429 NORTH COUNTY COMMUNICATIONS CORP. 957 RESERVE TELEPHONE COMPANY441 NORTHEAST CELLULAR TELEPHONE COMPANY 350 RESPONSE TELEMEDIA236 NORTHEAST TELEPHONE COMPANY 428 RINGGOLD TELEPHONE COMPANY243 NPB TELECOM 782 ROANOKE TELCO699 NYNEX 242 ROCK HILL TELEPHONE COMPANY299 NYNEX MOBILE COMMUNICATIONS CO. 662 ROGERS CANTEL MOBILE INC.678 NYNEX MOBILE COMMUNICATIONS CO. 566 ROSEVILLE TELEPHONE COMPANY769 OHIO STATE CELLULAR PHONE COMPANY, INC. 435 RURAL CELLULAR CORPORATION876 OK RSA5 E. PARTNERSHIP-PIONEER CELL., MANAG. PART. 869 SASKTEL534 OK CELL., MANAG. PARTNER FOR OK RSA 6 PARTNERSHIP 306 SASKTEL MOBILITY927 OKLAHOMA RSA 2-PIONEER CELLULAR, MANAG. PARTNER 315 SCHERERS COMMUNICATIONS GROUP, INC.563 OKLAHOMA WESTERN TELEPHONE COMPANY 323 SCHNEIDER COMMUNICATIONS, INC.936 OLD SPA SHOP ANTIQUES 775 SEVEN SEAS COMMUNICATIONS, INC.326 OMAHA CELLULAR LIMITED PARTNERSHIP 745 SHENANDOAH TELEPHONE COMPANY349 OMEGA CELLULAR PARTNERS, L.C. 527 SHERBURNE LONG DISTANCE305 OMNI III CABLE T.V., INC. 472 SHOREHAM TELEPHONE COMPANY, INC.726 OMNIPOINT CORPORATION 763 SNET CO.624 OMNIPOINT CORPORATION 569 SNET MOBILECOM, INC444 ONCOR COMMUNICATIONS, INC. 774 SNET PAGING, INC.510 ONECOMM COMMUNICATIONS CORPORATION 658 SOUTH HOLT CABLEVISION, INC.822 ONEONTA TELEPHONE CO. 720 SOUTHWESTERN BELL MOBILE SYSTEMS237 OPERATOR SERVICE COMPANY 722 SOUTHWESTERN BELL MOBILE SYSTEMS825 OPERATOR SERVICE COMPANY 721 SOUTHWESTERN BELL MOBILE SYSTEMS

50



CODE ASSIGNED TO CODE ASSIGNED TO508 SOUTHWESTERN BELL TELEPHONE CO. 879 US WEST COMMUNICATIONS, INC.507 SOUTHWESTERN BELL TELEPHONE CO. 973 USA MOBILE COMMUNICATIONS, INC. II506 SOUTHWESTERN BELL TELEPHONE CO. 862 USA MOBILE COMMUNICATIONS, INC. II505 SOUTHWESTERN BELL TELEPHONE CO. 450 USLINK, INC.453 SPECTRANET, INC. 544 UTILITIES, INC.757 SPRINGWICH CELLULAR LIMITED PARTNERSHIP 365 U.S. ADVANTAGE LONG DISTANCE, INC.614 SPRINT CELLULAR COMPANY 487 U.S. INTELCO NETWORKS, INC.877 SPRINT COMMUNICATIONS CO., L.P. 937 U.S. INTELCO NETWORKS, INC.249 SPRINT / CAROLINA TELEPHONE 282 U.S. WEST NEWVECTOR GROUP, INC.946 SPRINT / CENTEL OF NORTH CAROLINA 343 VALU-LINE OF KANSAS, INC.882 SPRINT / CENTEL OF VIRGINIA 241 VANGUARD CELLULAR SYSTEMS, INC.286 SPRINT / CENTRAL TELEPHONE - NEVADA 826 VANGUARD CELLULAR SYSTEMS, INC.886 SPRINT / UNITED TELEPHONE COMPANY OF OHIO 818 VARTEC TELECOM885 SPRINT / UNITED TELEPHONE CO. OF KANSAS 848 VAUGHNSVILLE TELEPHONE COMPANY, INC.788 SPRINT / UNITED TELEPHONE CO. OF TEXAS 255 VBI, INC.786 SPRINT / UNITED TELEPHONE OF FLORIDA 337 VENTURES IN PAGING884 SPRINT / UNITED TELEPHONE OF INDIANA 770 VIRGIN ISLANDS TELEPHONE CORPORATION280 SPRINT / UNITED TELEPHONE OF MINNESOTA 853 VISIONS LONG DISTANCE AMERICA, INC.320 SPRINT / UNITED TELEPHONE OF MISSOURI 387 VI-TEL, INC.340 SPRINT / UNITED TELEPHONE OF NEBRASKA 427 WABASH TELEPHONE COOPERATIVE, INC.651 SPRINT / UNITED TELEPHONE OF NEW JERSEY 789 WEST IOWA TELEPHONE COMPANY729 SPRINT / UNITED TELEPHONE OF PENNSYLVANIA 378 WEST LIBERTY TELEPHONE COMPANY254 SPRINT / UNITED TELEPHONE OF TENNESSEE 988 WEST TENNESSEE TELEPHONE CO.259 SPRINT / UNITED TEL. OF SOUTH CAROLINA 972 WESTERN PCS CORPORATION522 STANDISH TELEPHONE CO. 222 WHIDBEY TELEPHONE CO.327 STARTEC, INC. 556 WILKES TELEPHONE & ELECTRIC COMPANY783 STEELVILLE TELEPHONE EXCHANGE, INC. 925 WINCEL CELLULAR CORPORATION771 STRATEGIC PRODUCTS CORPORATION 539 WINN TELEPHONE COMPANY234 SWAYZEE TELEPHONE BROADBAND, INC. 246 WINSTAR362 SWAYZEE TELEPHONE COMPANY, INC. 426 WIRELESS ONE NETWORK824 TC - SYSTEMS 966 WIRELESS ONE NETWORK637 TC - SYSTEMS 454 WIRELESS ONE NETWORK356 TDS TELECOM 200 WKP, INC.384 TELECALL LONG DISTANCE, INC. 938 WKP, INC.863 TELECOM SERVICES OF TRINIDAD AND TOBAGO 623 WMW CABLE TV COMPANY546 TELECOMMUNICATIONS PREMIUM SERVICES 521 WOOD COUNTY TELEPHONE COMPANY484 TELECOM*USA (MCI) 926 ZENEX LONG DISTANCE889 TELECOM*USA (MCI)883 TELECOM*USA (MCI)887 TELECOM*USA (MCI)455 TELECONCEPTS, INC. dba TELEPHONE EXPRESS837 TELEPHONE ASSOCIATES LONG DISTANCE SERVICES, INC.244 TELEPHONE ELECTRONICS900 TELEZONE CORPORATION872 TEL/LOGIC INC.950 THE ANSWER NETWORK (ANI COMMUNICATIONS)568 THE FORT JENNINGS TELEPHONE COMPANY334 THE PINE TREE TELEPHONE & TELEGRAPH CO.465 THE SYCAMORE TELEPHONE COMPANY827 THUNDER BAY CELLULAR MOBILITY225 TIME WARNER TELECOMMUNICATIONS761 TMI COMMUNICATIONS967 TOUCH 1 COMMUNICATIONS423 TRI COUNTY TELEPHONE COMPANY, INC.235 TRIAD MINNESOTA CELLULAR L. P.405 TRIAD OKLAHOMA CELLULAR L.P.806 TRIAD TEXAS CELLULAR L.P.801 TRIAD UTAH CELLULAR L.P.620 TRILLIUM CELLULAR CORP.823 TRI-TOUCH AMERICA754 TWO WAY RADIO OF CAROLINA, INC.875 U S SIGNAL CORP.828 UINTAH BASIN TELEPHONE ASSOCIATION456 UNICOM CORPORATION (SOUTH CAROLINA)855 UNION TELEPHONE COMPANY647 UNION TELEPHONE COMPANY (SD)755 UNITED STATES CELLULAR CORPORATION247 UNITED STATES CELLULAR CORPORATION529 UNITED STATES CELLULAR CORPORATION

51

TABLE 10555 LINE NUMBER BALANCE SHEET


LINEASSIGNED AS NUMBERS

REGIONAL NUMBERS 372NATIONAL NUMBERS 2,163DIRECTORY ASSISTANCE (1212) 1

RESERVED (0100-0199) 100UNASSIGNED NUMBERS 7,364

TOTAL 10,000

TABLE 11NUMBER OF 555 LINE NUMBERS ASSIGNED

ASSIGNED ASSIGNEDYEAR DURING AT END

QUARTER OF QUARTER

1994 2ND QUARTER 6 6 3RD QUARTER 545 5514TH QUARTER 459 1,010

1995 1ST QUARTER 361 1,3642ND QUARTER 220 1,5773RD QUARTER 119 1,7004TH QUARTER 49 1,724

1996 1ST QUARTER 207 1,9162ND QUARTER 267 2,1753RD QUARTER 5 2,1804TH QUARTER 245 2,425

1997 1ST QUARTER 110 2,535

52

TABLE 12LIST OF 555 LINE NUMBER ASSIGNMENTS

SORTED BY LINE NUMBER(AS OF MARCH 31, 1997)

LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO0000 N MID ATLANTIC TELECOM 1000 R HUNTSVILLE TIMES0001 N PAYLINE SYSTEMS, INC. 1000 R OREGONIAN PUBLISHING CO.0002 R BALTIMORE SUN COMPANY 1000 R TORONTO STAR0003 R BALTIMORE SUN COMPANY 1000 R NYNEX/NEW ENGLAND0004 R BALTIMORE SUN COMPANY 1000 R PATRIOT-NEWS CO.0005 R ADVANCED PURE WATER CORP. 1000 R KALAMAZOO GAZETTE0005 R BALTIMORE SUN COMPANY 1000 R AIR ONE, INC.0007 N HOOT N HOLLER PUBLICATIONS, INC. 1001 N PAYLINE SYSTEMS, INC.0010 N US NETWORK SERVICES 1003 N CARLTON TELEPHONICS CORP.0011 N SYRACUSE NEWSPAPER 1010 R POST-NEWSWEEK STAT. - FLORIDA, INC.0012 N US NETWORK SERVICES 1010 R TORONTO STAR0013 N US NETWORK SERVICES 1010 R METROPOLITAN POLICE DEPARTMENT0014 N US NETWORK SERVICES 1040 N MATT OLSON0022 N MIRAGE MARKETING 1041 R WSB, INC.0033 N MIRAGE MARKETING 1050 N PACIFIC RIM ADVERTISING0036 N E OFFICE CORPORATION 1051 R WIOD, INC.0044 N MIRAGE MARKETING 1059 R WCKG, INC.0066 N MIRAGE MARKETING 1073 R WWRM, INC.0077 N MIRAGE MARKETING 1079 R WCKG, INC.0200 N DARREN CHAFFEE 1121 N CROW INT'L.0202 N PCM, INC. 1122 N RCI LONG DISTANCE NEW ENGLAND0211 N RCI LONG DISTANCE NEW ENGLAND 1133 N PHONE PROGRAMS, INC.0222 N INPHONEMATION, INC. 1155 N PACIFIC RIM ADVERTISING0261 R POST-NEWSWEEK CABLE 1166 N PACIFIC RIM ADVERTISING0270 N RICHARD A. STONE 1177 N WARREN JASON0300 N BLUE AMBER MOTEL, INC. 1198 N AGT LIMITED0303 N REBECCA SHAPIRO 1199 N LDC ENTERPRISES0328 N ENHANCED TELEPHONE SERVICES, INC. 1200 R UNION NEWS & SUNDAY REPUBLICAN0333 N INPHONEMATION, INC. 1200 R PATRIOT-NEWS CO.0400 N JONATHAN FINESTONE 1211 N WHYT-FM0404 N REBECCA SHAPIRO 1213 R HERALD-WA.0411 N 555-FAX-IT 1213 R AIR ONE, INC.0421 N ADAM/CHARLES TEXTILES 1215 N AIR ONE, INC.0444 N CRAIG 'TAX FREEZE' FREIS 1221 N INTEGRATED DATA CONCEPTS0445 N CRAIG 'TAX FREEZE' FREIS 1222 N D. J. ENTERPRISES0446 N CRAIG 'TAX FREEZE' FREIS 1225 N AMERITECH COMMUNICATIONS0447 N CRAIG 'TAX FREEZE' FREIS 1227 N MOBIUS RESEARCH0448 N CRAIG 'TAX FREEZE' FREIS 1228 R BURLINGTON COUNTY TIMES0500 R CONCORD TELEPHONE COMPANY 1234 R SOUTHAM INC.0500 R ADVANCED PURE WATER CORP. 1234 R US WEST0505 N TELETEL 1234 R PATRIOT-NEWS CO.0511 N 555 ON-LINE 1234 R BURLINGTON COUNTY TIMES0516 N LDC ENTERPRISES 1234 R UNION NEWS & SUNDAY REPUBLICAN0525 R LEXINGTON TELEPHONE CO. 1234 R CONDE' NAST/BON APPETIT0526 R LEXINGTON TELEPHONE CO. 1234 R BUCKS COUNTY COURIER TIMES0527 R LEXINGTON TELEPHONE CO. 1234 R TRI-CITY HERALD0528 R LEXINGTON TELEPHONE CO. 1234 R AMERITECH0529 R LEXINGTON TELEPHONE CO. 1234 R ADVANCED PURE WATER CORP.0555 N TELECENTER INC. 1234 R FRESNO BEE0562 N ENHANCED TELEPHONE SERVICES, INC. 1234 R SOUTHWESTERN BELL-ST. LOUIS0565 N JAMES F. BISHER, JR. 1238 N HUTCH CO.0600 R CONCORD TELEPHONE COMPANY 1242 N AIR ONE, INC.0664 N LIONESS ASSOCIATES 1265 N KLM & R COMMUNICATIONS0700 N DARREN CHAFFEE 1266 N THIRD STREET CHATTER0722 N ROBERT A. BLAISCH 1269 N BICOM0777 N PAGEMART, INC. 1288 N AT&T0808 N ENHANCED TELEPHONE SERVICES, INC. 1290 R WHIO, INC.0811 R COUNTY PRESS 1300 R UNION NEWS & SUNDAY REPUBLICAN0811 R JOSEPH BASIL MILLER 1311 R MARKETLINK INC0872 N AMERITECH COMMUNICATIONS 1313 R GCI CORP.0888 N PAGEMART, INC. 1313 R AGT LIMITED0900 N BLUE AMBER MOTEL, INC. 1313 R MT&T0909 N ENHANCED TELEPHONE SERVICES, INC. 1313 R BC TEL0911 R C.H. EPPERT 1313 R BELL CANADA0924 N PAUL LOCKWOOD 1313 R SASKTEL0957 N WJR -DIV. OF CAPITAL CITIES/ABC, INC. 1313 R NEWFOUNDLAND TEL0980 N DIANE BAKER-LOCKWOOD 1313 R NB TEL0988 N JEFF SPANG 1313 R MTS0999 N PAGEMART, INC. 1328 N TAKEOUT TAXI HOLDINGS, INC.

TYPE N - NATIONAL, R - REGIONAL 53

TABLE 12LIST OF 555 LINE NUMBER ASSIGNMENTS--CONTINUED


LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO1333 N PTI COMMUNICATIONS 1990 N STARMAGIC MEDIA SERVICES1357 N TAKEOUT TAXI HOLDINGS, INC. 1995 N REVENUE CANADA1359 N CAROL SHAPIRO 1996 R RAFFERTY, INC.1369 N HUTCH CO. 1996 R VOICE INFO, SVCS., INC.1379 N RCI LONG DISTANCE, INC. 1998 R DAVID I. ADELMAN1400 R HERITAGE INFORMATION SERVICES 1999 N ONCOR COMMUNICATIONS, INC.1414 N HALICO, INC. 2001 N ONCOR COMMUNICATIONS, INC.1426 N MOBIUS RESEARCH 2003 N WORD OF MOUTH ADVERTISING1463 N EXCELL AGENT SERVICES 2010 N ADAM/CHARLES TEXTILES1478 N BUDGET CALL LONG DISTANCE 2020 N SYNCRONET, INC.1500 R ANCHORAGE DAILY NEWS 2026 N E OFFICE CORPORATION1500 R HUNTSVILLE TIMES 2030 N TELEMATION INTERNATIONAL1501 R ST. FRANCIS REGIONAL MEDICAL CENTER 2039 N JAMES E. BOGAR1502 R ST. FRANCIS REGIONAL MEDICAL CENTER 2053 N WORD OF MOUTH ADVERTISING1503 R ST. FRANCIS REGIONAL MEDICAL CENTER 2055 N STANLEY SHAPIRO1504 R ST. FRANCIS REGIONAL MEDICAL CENTER 2097 N FIBERLINK, INC.1505 R ST. FRANCIS REGIONAL MEDICAL CENTER 2100 N TELETEL1515 R BELL ATLANTIC-NJ (GRANDFATHERED) 2111 N SYRACUSE NEWSPAPER1515 R AT&T 2201 N BETTY JOE, INC.1515 R NYNEX/NEW ENGLAND 2202 N BETTY JOE, INC.1525 N KLM & R COMMUNICATIONS 2203 N BETTY JOE, INC.1529 N WILL KAHANE 2204 N BETTY JOE, INC.1555 N SYRACUSE NEWSPAPER 2205 N BETTY JOE, INC.1600 R TEK COMMUNICATIONS, INC. 2211 N DDI CORPORATION1611 R NYNEX/NEW ENGLAND 2220 N INPHONEMATION, INC.1616 N BENNETT PUBLICATIONS 2221 N ABC RADIO NETWORKS, INC.1622 N THIRD STREET CHATTER 2224 N 800 CONCEPTS LLC1624 N NEED COMMUNICATIONS, INC. 2225 N POST-NEWSWEEK CABLE1638 N LIONESS ASSOCIATES 2226 N T.C.R. COMMUNICATIONS L.L.C.1661 N BT SERVICES, INC. 2228 R JOSEPH BASIL MILLER1688 N THIRD STREET CHATTER 2228 R BUCKS COUNTY COURIER TIMES1700 R TEK COMMUNICATIONS, INC. 2229 N TELEDONTICS, INC.1717 R NYNEX/NEW ENGLAND 2232 N ALL AMERICAN TELEPHONE CO.1727 N NEXUS COMMUNICATIONS, INC. 2233 N FLAMELESS HEAT, INC.1729 N E OFFICE CORPORATION 2237 N SPARKS COMMUNICATIONS1761 N JEFF SPANG 2242 N WM. HARDASH COMMUNICATIONS1762 N NEXUS COMMUNICATIONS, INC. 2243 N AUCTION VISION INT'L US, INC.1776 N INT'L DEVELOPMENT & ENTERPRISE 2244 N ECCO, INC.1786 N MIDDLE AMERICA TALK NETWORK 2245 N T & J INFORMATION1787 N MIDDLE AMERICA TALK NETWORK 2247 N COMPUSERVE INCORPORATED1800 R TEK COMMUNICATIONS, INC. 2253 N MARK TELECOM, LTD.1811 R NYNEX/NEW ENGLAND 2254 N D.K. COMMUNICATIONS L.L.C.1818 N INFONXX 2256 N BTNA/TYMNET1825 N EDNA L. MCKINLEY 2257 N DREAM THEME, INC.1834 N TZS CORP. 2258 N RITA DUSSEAU1842 N WILL KAHANE 2262 N US WEST MARKETING RESOURCES1845 R SPARTA NEWS PLAINDEALER 2263 R TIME WARNER COMMUNICATIONS1846 N INVESTMENT ENGINEERS 2264 N BT TELESIS, INC.1847 N INVESTMENT ENGINEERS 2266 N MOBIUS RESEARCH1848 N INVESTMENT ENGINEERS 2267 N TETHRA CORP.1849 N INVESTMENT ENGINEERS 2269 N COX ENTERPRISES1850 N INVESTMENT ENGINEERS 2272 N BTNA/TYMNET1860 R METRO TELECOMM SERVICES 2275 N ALL AMERICAN TELEPHONE CO.1860 R UNION NEWS & SUNDAY REPUBLICAN 2276 N TZS CORP.1866 N NEWSPAPER NETWORK 2278 N ASSOC. VENTURE SVCS., INC.1867 N REVENUE CANADA 2279 N BEDFORDSHIRE COMMUNICATIONS1868 N TAKEOUT TAXI HOLDINGS, INC. 2282 N 555 INFO NET1872 N AMERITECH COMMUNICATIONS 2283 N JOLT COMMUNICATIONS, INC.1879 N STEPHEN SMITH 2284 N B & A ENTERPRISES1891 R HERALD-WA. 2286 N SPARKS COMMUNICATIONS1892 N THIRD STREET CHATTER 2287 N ELIZABETH DOWLING1900 R TEK COMMUNICATIONS, INC. 2288 N POST-NEWSWEEK CABLE1919 N AT&T 2292 N SANDRA SPANG1929 N BOO ENTERPRISES 2293 N BROOKS TELE-COM SERVICES1941 N JAMES F. BISHER, JR. 2295 N ALTIMONT COMMUNICATIONS1949 N SUMMIT COMMUNICATIONS 2296 N CCB TELEPHONY, INC.1963 R WHYT-FM 2297 N FALSTAFF TELE-COM1967 N REVENUE CANADA 2300 N SCHERERS COMMUNICATIONS1980 N STARMAGIC MEDIA SERVICES 2311 N MIDDLE AMERICA TALK NETWORK1989 N RICHARD A. STONE 2322 N AYSM CORP.




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO2323 N LOCAL EXCHANGE CO. 2472 N CHARLOTTE DUNCAN2326 N RITA DUSSEAU 2473 N MARK PAUL BORNSTEIN2327 R RICHARD S. BELL 2474 N MICHAEL B. MAW2328 N MADEMOISELLE 2475 N LANSDALE COMMUNICATIONS2329 R GAZETTE NEWSPAPERS 2477 R CANADIAN COAST GUARD2333 N NORTHWEST FARMER-STOCKMAN, INC. 2478 N WAYLAND COMMUNICATIONS2334 N HOWARD JONAS 2479 N SEAWYF, INC.2343 N ENCORE AGENCY 2482 N TZS CORP.2345 N EXCELL AGENT SERVICES 2483 N CATHY S. SURACE2346 N CHRISTOPHER P. OBERLE 2484 N CITIZENS UTILITIES2348 N GARY W. ANDERSON 2487 N SPRINT COMMUNICATIONS2349 N LINDA D. ANDERSON 2488 N UNASOURCE MARKETING GROUP2358 N O'BRIEN COMMUNICATION SERVICES 2489 N FLIGHT RESOURCES, INC.2359 N AIRLINE VENTURE SVCS., INC. 2492 N DIANE BAKER-LOCKWOOD2362 N NAT REESE 2500 R COWLES MEDIA COMPANY2363 N ESTHER SIEGEL 2500 R TIMES-PICAYUNE PUBLISHING CORP.2364 N PLANDOME COMMUNICATIONS 2500 R OREGONIAN PUBLISHING CO.2366 N WIRELESS ONE NETWORK 2522 N OCEAN ATLANTIC COMMUNICATIONS2367 N MARKET DEVELOPMENT CORP. 2524 N T.C.R. COMMUNICATIONS L.L.C.2368 N HIGH INTEREST COMMUNICATIONS 2526 N ABCD, INC.2372 N JFR NUMBER SYSTEMS 2527 N DAILY HERALD2374 N RGM COMMSTAR 2529 N UNASOURCE MARKETING GROUP2375 N RDC TELEMANAGEMENT, INC. 2532 N J & T TELECOM CORP.2376 N ICS HOLDINGS COMPANY 2537 N IQ, INC.2377 N PLANDOME COMMUNICATIONS 2538 N AURAND2378 N AERIE GROUP 2542 N RANDOM ACCESS CORP.2381 N SANTA FE NEW MEXICAN 2543 N CREATIVE CALL MANAGEMENT2382 N GAIL MARIE NAFTALIN 2546 N T.C.R. COMMUNICATIONS L.L.C.2383 N FTD DIRECT ACCESS, INC. 2548 N CREATIVE CALL MANAGEMENT2384 N FIBERLINK, INC. 2552 N EILEEN LOCKWOOD2385 N M&C MINNESOTA, INC. 2554 N RANDOM ACCESS CORP.2386 N CHRISTOPHER P. OBERLE 2555 R CHICAGO TRIBUNE CO.2387 N PC-TOTES, INC. 2557 N MARKET POWER, INC.2388 N CARLTON TELEPHONICS CORP. 2558 N ALLURE MAGAZINE2389 N JESSICA JONAS 2562 N BH INFORMATION CORP.2392 N SUMMIT COMMUNICATIONS 2564 N RICHARD LEVINE2394 N CECELIA DOWNS 2566 N FINANCIAL TELESYS CORP.2399 N BTD ENTERPRISES 2567 N FALSTAFF TELE-COM2400 N SYNCRONET, INC. 2568 N THELMA NELLES2411 N MATHEWS AERIAL SERVICES, INC. 2569 N TOUCH PHONE PRODUCTIONS, INC.2422 N BUDDY HOWE 2574 N BEDFORDSHIRE COMMUNICATIONS2423 N JOYCE S. MARKHAM 2576 N JEROME SACHS2424 N LOCAL EXCHANGE CO. 2577 N JEROME SACHS2425 N MICHAEL B. MAW 2580 N MID ATLANTIC TELECOM2426 N ADVANTIS 2582 N BT TELECOM, INC.2427 R CONSUMERS GAS 2586 N DENNIS TEMPLE2428 N LIFE ZONE SERVICES 2592 N AUDREY COX2429 N DEENA JORGENSON 2622 N FINANCIAL VENTURES SVCS.2432 N RWH INFORMATION CORP. 2624 N PAUL SIMONS2433 N ROBERT A. BLAISCH 2625 R MARISSA JOURNAL2435 N DEENA JORGENSON 2626 N LOCAL EXCHANGE CO.2436 N JFC TELECOMM, INC. 2627 N ALTIMONT COMMUNICATIONS2437 N TELEHEALTH SERVICES, INC. 2628 N STONEBRAKER & WILSON, INC.2438 N A. JACOB ARTHUR ASSOC. 2632 N SAM HAIM2442 N VOGUE 2633 N CANADA POST CORPORATION2443 N G.R.F. COMMUNICATION SERVICES 2636 N A. JACOB ARTHUR ASSOC.2444 N GEORGE LOCKWOOD 2637 N CHARLOTTE DUNCAN2445 N ABC DAYTIME CIRCLE, INC. 2643 N KNR ASSOCIATES2446 N INT'L DEVELOPMENT & ENTERPRISE 2645 N A.S.M. COMMUNICATION SERVICES2447 N INTERNATIONAL TELEPHONE MAIL 2646 N M&C MINNESOTA, INC.2448 N BRENDAN CORP. 2648 N BUC-VIN TELESERVICES2453 N ACTIVITY DIRECTORIES INTL., INC. 2653 N COCA-COLA BEVERAGES LTD.2455 N INTERACTIVE VIDEO ENTERPRISES 2654 N MARKET SHARE, INC.2463 N RAPMIL CORPORATION 2655 N COMMUNICATIONS VENTURE SVCS., INC.2464 N MF INDUSTRIES 2656 N MARK PAUL BORNSTEIN2466 N LINDA D. ANDERSON 2658 N EFGH, INC.2467 N RAMBLEWOOD COMMUNICATIONS 2661 N BT SERVICES, INC.2468 N RCI LONG DISTANCE, INC. 2662 N NOR CORP.2469 N FALSTAFF TELE-COM 2663 N SAM HAIM2471 N COMPUSERVE INCORPORATED 2664 N MARKET DEVELOPMENT CORP.




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LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO7286 N LORRIE KLINE KAPLAN 7453 N RISK VENTURE SERVICES, INC.7287 N TZS CORP. 7454 N RISK VENTURE SERVICES, INC.7288 N J.B. TELECOM, INC. 7455 N BELINDA S. SIDES7289 N BOO ENTERPRISES 7456 N PAUL SIUDZINSKI7292 N BARBADOS TELE-COM 7463 N JAM RESEARCH7296 R SMR SYSTEMS, INC. 7464 N CONNIE SIMMONS7297 N JONATHAN FINESTONE 7465 R PINCKNEYVILLE DEMOCRAT7298 N NAT REESE 7466 N BT TELESIS, INC.7300 N GARY W. ANDERSON 7468 N JAM RESEARCH7322 N AMERICAN INTL. ENTERPRISES 7469 N HOOT N HOLLER PUBLICATIONS, INC.7324 R GREGORY WING 7470 N ANNAPOLIS SAILYARD7326 N KIRA CORP. 7472 N WAYNE M. HAMMERLY7327 N JRR RESEARCH, INC. 7473 N TELETEL7328 N FALCONWOOD CORPORATION 7474 N JARDINE TELE-COM7329 N PALM BEACH COMMUNICATIONS 7475 N ELLEN GRAY7332 N STEPHEN SMITH 7483 N ARLINDO DASILVA7333 N PATTI LOTTERMOSER 7488 N MARKET SHARE, INC.7334 N ANNE E. CURTIS COMMUNICATIONS 7499 N RAPMIL CORPORATION7335 R SPARTA NEWS PLAINDEALER 7500 R TIMES-PICAYUNE PUBLISHING CORP.7336 N DPC TELE-SERVICES 7500 R MODESTO BEE7337 N HAMMERLY PRODUCTIONS 7502 R WSB, INC.7338 N WHOLE EARTH GREEN PAGES 7505 N ANNAPOLIS SAILYARD7342 N GAME SERVICES CORPORATION 7522 N ELLEN GRAY7344 N ANGEL COMMUNICATIONS CORP. 7526 N SOTIRIOS ASSOC.7347 N WASHINGTON POST COMPANY 7528 N JAMIESON CORPORATION7348 N CG COMMUNICATIONS CORP. 7532 N ELLEN GRAY7352 N HUTCH CO. 7533 N CMR COMPANY7353 N SELF MAGAZINE 7536 N GRANT JORGENSON7354 N ANGEL COMMUNICATIONS CORP. 7542 N T.L. TELE-SERVICES7356 N DDI CORPORATION 7543 N MINDSCAPE7359 N ANDREW PENN 7544 N C C RIDERS7362 N ATLANTIC WEST INTERNATIONAL 7545 N ASC7363 N MODAMAS INC 7547 N LIONESS ASSOCIATES7364 N BANKCARD MARKETING NETWORK 7548 N ANGEL COMMUNICATIONS CORP.7366 N GLOBAL TECHNOLOGY CORP. 7555 R LANCASTER NEWSPAPERS, INC.7367 N CG COMMUNICATIONS CORP. 7563 N CITY VENTURES7369 N ARTHUR NAFTALIN 7565 N BERNIE SANSHUCK7372 N AMERICAN PROTOCALL 7568 N MF INDUSTRIES7373 N UNASOURCE MARKETING GROUP 7569 N KAREN LOCKWOOD7374 N CAC TELECOMM, INC. 7575 R NB TEL7375 N ROBERT N. MARKHAM 7575 R NEWFOUNDLAND TEL7376 N M&C MINNESOTA, INC. 7575 R AGT LIMITED7377 N SOFT PRODUCTS, INC. 7575 R SASKTEL7378 R JAMES R. WALZ 7575 R BC TEL7378 R US WEST COMMUNICATIONS 7575 R BELL CANADA7378 R CAHOKIA-DUPO HERALD 7575 R MT&T7379 R PINCKNEYVILLE DEMOCRAT 7575 R MTS7381 N BICOM 7586 N INTERNATIONAL TELEPHONE MAIL7382 N BELAIR COMMUNICATIONS, INC. 7588 N EXOTIC SERVICES, INC.7383 N BRENDAN CORP. 7591 N PAUL SIMONS7384 N AMERICAN PROTOCALL 7594 N CITY VENTURES7385 N R.P.W. COMMUNICATIONS 7597 N AURAND7386 N SAN DIEGO TELE-SERVICES 7598 N CITY VENTURES7387 R JAMES R. WALZ 7600 N QUATERRA COMMUNICATIONS CORP.7387 R TEXAS MEDICAL PAGING 7609 N BF&L7388 R COWLES PUBLISHING CO. 7622 N VIRGINIA BEACH COMMUNICATIONS CORP.7389 R COWLES PUBLISHING CO. 7623 N SHARE A RIDE INTERNATIONAL, INC.7391 N NETWORK TELEPHONE SERVICES, INC. 7626 N CONDE NAST TRAVELER7392 N LUBBOCK COMMUNICATIONS SVCS. 7628 N ARTHUR NAFTALIN7394 N AMERICAN INTL. ENTERPRISES 7632 N ENGULF & DEVOUR7395 N G-R TELCOM SERVICES, INC. 7633 N D.G. TELECOM SERVICES7399 N WEPS, INC. 7638 N NEUROLOGY CLINIC, P.C.7400 N PAUL SIMONS 7639 R WABC-TV7403 N KPT MANAGEMENT CORP. 7645 N CHRISTOPHER HALE7406 N JOANN T. SHAPIRO 7646 N STANLEY H. KAPLAN EDUCATION CTR.7423 N ROB-TEL SERVICES 7647 N MATHEWS AERIAL SERVICES, INC.7424 N BH INFORMATION CORP. 7652 N D.G. TELECOM SERVICES7426 R SEDGEWICK COUNTY INFO. SERVICES 7653 N MIDDLEWAVE TELECOM CORP7427 N TOP LINE RESOURCES 7654 N SNOWMASS COMMUNICATIONS7428 N PALM BEACH COMMUNICATIONS 7655 R KABC RADIO, INC.7432 N ELLEN GRAY 7655 R REMINDER NEWSPAPERS7433 N SHARE A RIDE INTERNATIONAL, INC. 7656 N ORRIN CHARM7434 N D.G. TELECOM SERVICES 7658 N JAMES MARLIN7435 N IJKL, INC. 7659 N NORSICAN COMMUNICATIONS, INC.7437 N YGBK CORPORATION 7662 N CONNIE SIMMONS7442 N ARTHUR NAFTALIN 7663 N TERRIAN CORP.7444 N WHOLE EARTH GREEN PAGES 7664 N 555-SONG, INC.7445 N JRR RESEARCH, INC. 7665 N SHARE A RIDE INTERNATIONAL, INC.7446 N CREATIVE DIRECT MARKETING 7666 N PAN & ASSOCIATES




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO7672 N JARDINE TELE-COM 7867 N STREET & SMITH'S7673 N STONEBRAKER & WILSON, INC. 7868 N ANNE E. CURTIS COMMUNICATIONS7674 N LEVINSOHN GROUP, II, INC. 7872 N YACHT FUND COMMUNICATIONS7675 N A & H ENTERPRISES 7873 N CLARKE TRANSPORT CANADA7676 R MURIETA TIMES 7874 N READY CALL, INC.7677 N CMR COMPANY 7876 N NEUROLOGY CLINIC, P.C.7678 N WASHINGTON POST COMPANY 7877 N PHONE USA INC.7679 N MELISSA NOLIN 7878 N WESLEY MEDICAL CENTER7683 N CAC TELECOMM, INC. 7883 N CRAIG P. LEVINSOHN7685 N KLM & R COMMUNICATIONS 7887 N NANCY KAHANE7687 N ABC ENTERPRISES 7888 N NEED COMMUNICATIONS, INC.7688 N BERNIE SANSHUCK 7890 N MID ATLANTIC TELECOM7692 N G & W COMMUNICATIONS 7895 N GQ MAGAZINE7693 N MOBIUS RESEARCH 7898 R STAR-TELEGRAM OPERATING, LTD.7695 N ELLEN GRAY 7924 N GRANT JORGENSON7696 R WABC-TV 7926 N NETWORK BILLING SYSTEMS, LLC7700 N LEXICOM, INC. 7928 R SOUTHWESTERN BELL-ST. LOUIS7711 N BOYD BYERS 7929 N GEORGE LOCKWOOD7722 N BEJAY COMMUNICATIONS CORP. 7932 N JOYCE S. MARKHAM7724 N NAT REESE 7933 N KIRA CORP.7726 N BEJAY COMMUNICATIONS CORP. 7936 N PDQ PHONE, INC.7727 N KATHLEEN S. ANDERSON 7946 N JAMIESON CORPORATION7729 N LISA TENNEY 7947 N ANNE E. CURTIS COMMUNICATIONS7732 N LEVITHI ASSOCIATES 7956 N ZOOM VIDEO PRODUCTIONS7733 N DONNA BROWN 7957 N SUSAN M. STONE7734 N ANGEL COMMUNICATIONS CORP. 7972 N CAROLYN CHAMBERLAIN7735 N CROW INT'L. 7979 N MARY J. IMHOFF7736 N MCDONALD COMMUNICATION SERVICES 8000 R TELE-DIRECT PUBLICATIONS7737 N STANLEY H. KAPLAN EDUCATION CTR. 8000 R WICHITA EAGLE & BEACON PUBLISHING7738 N VISUAL RADIO 8002 N INKICOMM, INC.7742 N SHARON WEISS 8003 N ASPEN COMMUNICATIONS CORP.7743 N BELINDA S. SIDES 8004 N ASPEN COMMUNICATIONS CORP.7744 N JOY BOYD 8005 N ASPEN COMMUNICATIONS CORP.7745 N T.L. TELE-SERVICES 8006 N ASPEN COMMUNICATIONS CORP.7746 N MUSIC LINE 8007 N C&C FINANCIAL & COMMUNICATIONS7747 N MARKET POWER, INC. 8008 N C&C FINANCIAL & COMMUNICATIONS7754 N CHAMBERLAIN COMMUNICATIONS 8080 N RCI LONG DISTANCE, INC.7755 N BUSINESS TO CONSUMER NETWORK 8083 N CSR ASSOCIATES7756 N CHAMBERLAIN COMMUNICATIONS 8087 N HANNAH SHAPIRO7761 N DEREK NESS 8090 N HEALTH VENTURE SVCS., INC.7762 N DENNIS TEMPLE 8096 N HANNAH SHAPIRO7763 N CSR ASSOCIATES 8097 N JAMES E. BOGAR7764 R O'FALLON PROGRESS 8100 R KGO-ABC/CAPITAL CITIES7765 N ANGEL COMMUNICATIONS CORP. 8146 N A. JACOB ARTHUR ASSOC.7766 N ICS HOLDINGS COMPANY 8181 R OAKLAND PRESS7768 R PINCKNEYVILLE DEMOCRAT 8189 N RICHARD A. STONE7770 R MULTICOM, DIV. OF DE GROUPE QUEBECOR INC. 8200 N TODAY'S HOMES7774 N COMMUNICATIONS VENTURE SVCS., INC. 8222 N T & J INFORMATION7778 N DEAN R. CHAMBERLAIN 8225 N JA ASSOCIATES7782 N K.M. COMMUNICATION SERVICES 8226 N TOP LINE RESOURCES7783 N K.M. COMMUNICATION SERVICES 8228 N G.R.F. COMMUNICATION SERVICES7787 N NATIONWIDE WIRELESS NETWORK 8229 N TUNA CORP.7788 N REVENUE CANADA 8238 N DW FITNESS7792 N M&C MINNESOTA, INC. 8243 N AUCTION VISION INT'L US, INC.7799 N WARREN JASON 8245 R FONES WEST7800 N SCHERERS COMMUNICATIONS 8246 N OCEAN ATLANTIC FINANCIAL INVESTMENT7814 N SUMMIT COMMUNICATIONS 8247 N RAMBLEWOOD COMMUNICATIONS7822 N J.B. TELECOM, INC. 8249 N BURKE TELCOM SERVICES7823 N PENTA RESOURCES CORP. 8252 N YGBK CORPORATION7824 N RITA DUSSEAU 8253 N MARKET SHARE, INC.7825 N NETWORK TELEPHONE SERVICES, INC. 8256 R NEVADA BELL7826 N MCDONALD COMMUNICATION SERVICES 8257 N BROOKS TELE-COM SERVICES7828 N JILL CARTER CONSULTING 8259 N EXCELL AGENT SERVICES7829 N FLAMELESS HEAT, INC. 8262 N CRYSTAL MARCUS AUGUST7832 N OCEAN ATLANTIC FINANCIAL INVESTMENT 8265 N PESCADERO COMMUNICATIONS7833 N WAYNE M. HAMMERLY 8267 N J & T TELECOM CORP.7837 N RANDOM ACCESS CORP. 8269 N ECCO, INC.7838 N EXECUTIVE TELERESEARCH, INC. 8273 N DEREK NESS7839 R STAR-TELEGRAM OPERATING, LTD. 8274 N PALM BEACH COMMUNICATIONS7845 R PINCKNEYVILLE DEMOCRAT 8275 N ROBERT G. DREHER7847 N RWH INFORMATION CORP. 8276 N JOY ENTERPRISES, INC.7848 N SNOMIS CORP. 8277 N THELMA NELLES7854 N SANDRA SPANG 8283 N INTERACTIVE VIDEO ENTERPRISES7858 N SANDRA SPANG 8284 N J&S COMMUNICATIONS SVCS.7862 N SAM HAIM 8291 N SUMMERHILL VENTURES, INC.7863 N POTOMAC TELESERVICES 8292 N TAS ENTERPRISES7864 N OCEAN ATLANTIC FINANCIAL INVESTMENT 8293 N LISA TENNEY7865 R LANCASTER NEWSPAPERS, INC. 8294 N TELETAXI SERVICES INC.7866 N FINANCIAL TELESYS CORP. 8295 N WILTEL




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO8296 N WILTEL 8568 N ROBERT G. DREHER8297 N WILTEL 8584 N FALSTAFF TELE-COM8299 N SOTIRIOS ASSOC. 8585 N GANNETT CO., INC.8300 N ONCOR COMMUNICATIONS, INC. 8587 N PHON-E8322 N YACHT FUND COMMUNICATIONS 8600 N TELEMATION INTERNATIONAL8325 N BELINDA S. SIDES 8622 R NEVADA BELL8326 N EFGH, INC. 8623 N EXECUTIVE TELERESEARCH, INC.8327 N ROBERT G. DREHER 8627 N MELISSA NOLIN8333 R ISLAND PACKET 8632 N RAK COMMUNICATIONS, INC.8336 N THOMAS J. HUGHES, III 8636 N POTOMAC TELESERVICES8337 N CRYSTAL MARCUS AUGUST 8637 R MURIETA TIMES8338 N INKICOMM, INC. 8642 N VOICES FROM HOME, INC.8342 N ZASSODA ENTERPRISES 8643 N VIRGINIA BEACH COMMUNICATIONS CORP.8343 N FRANCES H. NAFTALIN 8646 N GOURMET MAGAZINE8345 N JONATHAN FINESTONE 8648 N AIRWAYS CORPORATION8346 N MANLEY COMMUNICATION SERVICES 8649 N MG COMMUNICATIONS, INC.8352 N TARGET REALTY 8652 N BLUE AMBER MOTEL, INC.8353 N CROSSCONNECT 8653 N C&C FINANCIAL & COMMUNICATIONS8355 R COUNTY PRESS 8655 N MG COMMUNICATIONS, INC.8355 R MARISSA JOURNAL 8656 N CG COMMUNICATIONS CORP.8358 N JOEL PACKER 8657 N ROBERT G. DREHER8361 N ARLINDO DASILVA 8658 N BICOM8363 N YACHT FUND COMMUNICATIONS 8661 N NEWSPAPER NETWORK8366 N MARKET SHARE, INC. 8663 N WARREN JASON8368 N JARDINE TELE-COM 8664 N JESSICA JONAS8372 N BROOKS TELE-COM SERVICES 8665 N NOR CORP.8376 N JFC TELECOMM, INC. 8667 N UNASOURCE MARKETING GROUP8378 N STANLEY H. KAPLAN EDUCATION CTR. 8668 N KENSINGTON PHYSICAL THERAPY8383 N VANITY FAIR 8672 N CCB TELEPHONY, INC.8386 N AGR ASSOCIATES 8673 N MG COMMUNICATIONS, INC.8387 N JILL CARTER CONSULTING 8674 N POTOMAC TELESERVICES8388 N MCDONALD COMMUNICATION SERVICES 8675 N INPUT COMMUNICATIONS8389 N SUSAN M. STONE 8676 N CHAMBERLAIN COMMUNICATIONS8392 N CONNIE SIMMONS 8677 N DONNA BROWN8398 N RANDOM HOUSE 8678 N CROW INT'L.8400 N TELEMATION INTERNATIONAL 8682 N FRANCES H. NAFTALIN8423 N FALCONWOOD CORPORATION 8683 N CAPITAL NETWORK SYSTEM, INC.8424 N ASC 8686 N T.L. TELE-SERVICES8425 N FALCONWOOD CORPORATION 8688 N CAPITAL NETWORK SYSTEM, INC.8426 N JILL CARTER CONSULTING 8690 N HANNAH SHAPIRO8427 N LIFE ZONE SERVICES 8692 N INKICOMM, INC.8428 N DEBBIE A. COSPER 8693 N BTD ENTERPRISES8432 N LANSDALE COMMUNICATIONS 8695 N ROCK-TEL COMMUNICATIONS8433 N BELL CANADA 8696 R MORGAN HILL TIMES8435 N BEJAY COMMUNICATIONS CORP. 8697 N GAME SERVICES CORPORATION8436 N CCB TELEPHONY, INC. 8698 N MG COMMUNICATIONS, INC.8437 N EDNA L. MCKINLEY 8700 R QUALICOM8438 N CORCORAN GROUP, INC. 8705 N ARCHITECTURAL DIGEST8439 N VOGUE 8720 N AMERITECH COMMUNICATIONS8442 N ARLINDO DASILVA 8721 N HALICO, INC.8443 N LISA TENNEY 8722 N THOMAS J. HUGHES, III8446 N SARAH O. MONTGOMERY 8723 N MICHAEL B. MAW8447 N INTERACTIVE DEVICES 8724 N AIRLINE VENTURE SVCS., INC.8453 N TERRIAN CORP. 8725 N VOICE INFO, SVCS., INC.8458 N ASC 8726 N TELCO PLANNING8459 N AYSM CORP. 8727 N WEDDINGFONE, INC.8462 N NETWORK TELEPHONE SERVICES, INC. 8728 N BRIDE'S MAGAZINE8466 N RAK COMMUNICATIONS, INC. 8729 N NANCY KAHANE8468 N CCB TELEPHONY, INC. 8732 N AMERICAN INTL. ENTERPRISES8469 N MELISSA NOLIN 8733 N CHRISTOPHER HALE8473 N AUTO VENTURE SVCS., INC. 8734 N CAROLYN CHAMBERLAIN8474 N JRR RESEARCH, INC. 8735 N PRODUCT VENTURE SERVICES, INC.8475 N J.B. TELECOM, INC. 8736 N POTOMAC TELESERVICES8478 N YACHT FUND COMMUNICATIONS 8737 N SKYTEL CORPORATION8482 R DISPATCH 8743 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.8484 N MARY J. IMHOFF 8744 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.8486 N ROCK-TEL COMMUNICATIONS 8745 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.8487 N PHONE USA INC. 8746 N JAMIESON CORPORATION8488 N JEFF SPANG 8748 N MIDDLEWAVE TELECOM CORP8491 N MELISSA NOLIN 8749 N FRANCES H. NAFTALIN8497 N BELINDA S. SIDES 8754 N JONATHAN FINESTONE8499 N MOVIEFONE, INC. 8756 N CECELIA DOWNS8500 R COWLES MEDIA COMPANY 8762 N LISA TENNEY8505 N SANDRA SPANG 8765 N MG COMMUNICATIONS, INC.8523 N D.G. TELECOM SERVICES 8767 N ACCESS INFO-NET, INC.8542 N TOUCH PHONE PRODUCTIONS, INC. 8768 N INPUT COMMUNICATIONS8547 N MELISSA NOLIN 8769 N YGBK CORPORATION8555 R LANCASTER NEWSPAPERS, INC. 8772 N CURTIS WORLDWIDE ENTERPRISES, INC.8555 R JOSEPH BASIL MILLER 8775 N POTOMAC TELESERVICES




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO8777 N BUDDY HOWE 9273 N DIVAD TELECOM8782 N HUTCH CO. 9274 N 900 VOICE, INC.8783 N C C RIDERS 9276 R WWRM, INC.8784 N ALTIMONT COMMUNICATIONS 9277 N BT TELESIS, INC.8785 N SUMMIT COMMUNICATIONS 9278 N B & C ENTERPRISES8786 N ACCESS INFORMATION NETWORK 9282 N ELLEN SILVERBERG8787 N C&C FINANCIAL & COMMUNICATIONS 9283 N JILL CARTER CONSULTING8789 N JOY ENTERPRISES, INC. 9284 N EUROPEAN AMERICAN TRAVEL, INC.8790 N CORPORATE TELEMANAGEMENT GROUP 9287 N DPC TELE-SERVICES8791 N 555 ON-LINE 9292 R KQRS, INC.8792 R US WEST NEW VECTOR GROUP 9297 N HOWARD JONAS8792 N DAVID L. SIMONS 9300 N TELECOMPUTE CORPORATION8794 N RAK COMMUNICATIONS, INC. 9320 N MANHATTAN ENTERPRISES8797 N RAK COMMUNICATIONS, INC. 9321 N TAS ENTERPRISES8800 N LEXICOM, INC. 9322 N JA ASSOCIATES8812 R POST-NEWSWEEK STAT. - SAN ANTONIO 9323 N MANHATTAN ENTERPRISES8822 N DONNA BROWN 9324 N MANHATTAN ENTERPRISES8824 N BELAIR COMMUNICATIONS, INC. 9325 N MANHATTAN ENTERPRISES8833 N BOYD BYERS 9326 N BANKCARD MARKETING NETWORK8838 N CRYSTAL MARCUS AUGUST 9327 N VOGUE8844 N JOY BOYD 9328 N BILLY M. COSPER, JR.8845 N BURKE TELCOM SERVICES 9329 N MANHATTAN ENTERPRISES8846 N BROOKS TELE-COM SERVICES 9330 N QUATERRA COMMUNICATIONS CORP.8848 N INKICOMM, INC. 9331 N WEDDINGFONE, INC.8854 N TAS ENTERPRISES 9333 N INTERNATIONAL TELEPHONE MAIL8855 N BUSINESS TO CONSUMER NETWORK 9334 N GAW TELECOM RESOURCES8858 N FALCONWOOD CORPORATION 9335 N NEWSWEEK8860 N SUMMERHILL ENTERPRISES 9336 N JOEL PACKER8861 N SUMMERHILL ENTERPRISES 9337 N BRIDE'S MAGAZINE8862 N SUMMERHILL ENTERPRISES 9342 N BEDFORDSHIRE COMMUNICATIONS8863 N VOICES FROM HOME, INC. 9344 N CRYSTAL MARCUS AUGUST8863 N PCM, INC. 9345 N YACHT FUND COMMUNICATIONS8864 N TAS INDUSTRIES 9348 R POST-NEWSWEEK STATIONS, MICHIGAN8865 N TAS INDUSTRIES 9352 R WIOD, INC.8866 N DENNY BROWN 9353 R BALTIMORE SUN COMPANY8867 N SUMMERHILL ENTERPRISES 9355 R DISPATCH8868 N SUMMERHILL ENTERPRISES 9355 R KATHLEEN S. ANDERSON8872 N JFR NUMBER SYSTEMS 9359 N US WEST MARKETING RESOURCES8873 N NETWORK BILLING SYSTEMS, LLC 9370 N KENSINGTON PHYSICAL THERAPY8876 N DENNIS TEMPLE 9372 R POST-NEWSWEEK STATIONS-CT., INC.8877 N DAVID W. GOODALE 9373 N INKICOMM, INC.8885 N FALCONWOOD CORPORATION 9376 N NORTHWEST FARMER-STOCKMAN, INC.8893 N JFR NUMBER SYSTEMS 9378 N BERNIE SANSHUCK8899 N DAVID W. GOODALE 9382 N W-O TELCOM SERVICES, INC.8900 N RCI LONG DISTANCE, INC. 9383 N W-O TELCOM SERVICES, INC.8911 N CROW INT'L. 9384 N W-O TELCOM SERVICES, INC.8926 N FRANCES H. NAFTALIN 9385 N W-O TELCOM SERVICES, INC.8928 N INTER ACTIVE TELECOM 9386 N W-O TELCOM SERVICES, INC.8946 N SIDNEY LEVINSOHN 9387 N G-R TELCOM SERVICES, INC.8953 N VALERIE ERVIN 9388 R WFTV, INC.8975 N PTI COMMUNICATIONS 9389 N G-R TELCOM SERVICES, INC.8980 R TIME WARNER TELECOMMUNICATIONS 9393 R KQRS, INC.8987 N PAUL LOCKWOOD 9419 N PAUL LOCKWOOD8989 N MARY J. IMHOFF 9428 R WATERLOO REPUBLIC-TIMES8999 N US WEST MARKETING RESOURCES 9433 N ENCORE AGENCY9000 N FTD DIRECT ACCESS, INC. 9436 R NEW ATHENS JOURNAL9004 N SAN DIEGO TELE-SERVICES 9437 N KAMARIS ASSOCIATES9006 N PAUL LOCKWOOD 9446 R WHIO, INC.9075 N KPT MANAGEMENT CORP. 9447 N 800 CONCEPTS LLC9090 N NNT 9448 N MCDONALD COMMUNICATION SERVICES9111 R C.H. EPPERT 9453 N NETWORK TELEPHONE SERVICES, INC.9191 R C.H. EPPERT 9455 N ALLEN EISDORFER ESQ.9222 R WABC-TV 9461 N SUMMERHILL VENTURES, INC.9224 N GAW TELECOM RESOURCES 9462 N SGR NETWORK SERVICES9225 N EILEEN LOCKWOOD 9463 N GOURMET MAGAZINE9233 N CHRISTINE MARLIN 9464 N G & W COMMUNICATIONS9244 R MERCURY NEW MEDIA 9465 N DAVID H. LOCKWOOD9248 R PACIFIC BELL-NATL. ACCOUNTS 9466 R EARLYBIRD AWARDS, INC.9253 N TELEWAKE SERVICES, INC. 9467 N TELECOM TECHNOLOGIES9254 R WCKG, INC. 9468 N VALERIE ERVIN9255 N ARCHITECTURAL DIGEST 9472 R NEW-CELL, INC.9256 N ACCESS INFO-NET, INC. 9473 N KAMARIS ASSOCIATES9258 N TUNA CORP. 9474 N BF&L9262 N MARYLAND TEL-COM SERVICES 9475 N SUSAN DELETTERA9263 R WWRM, INC. 9483 N INTERNATIONAL TELESIS, INC.9264 N BROOKS TELE-COM SERVICES 9484 N VALERIE ERVIN9265 N WAYNE M. HAMMERLY 9486 N GAW TELECOM RESOURCES9266 N TAKEOUT TAXI HOLDINGS, INC. 9487 N EILEEN LOCKWOOD9268 R SPARTA NEWS PLAINDEALER 9494 N MARY J. IMHOFF




LINE NO. TYPE ASSIGNED TO9500 R MODESTO BEE9550 N BUDGET CALL LONG DISTANCE9555 N DDI CORPORATION9559 R GAZETTE NEWSPAPERS9566 R WATERLOO REPUBLIC-TIMES9587 N WORD OF MOUTH ADVERTISING9595 N GANNETT CO., INC.9597 N WAYNE M. HAMMERLY9598 R POST-NEWSWEEK STAT. - FLORIDA, INC.9622 R NEVADA BELL9623 N NAT REESE9627 N CONNIE SIMMONS9636 N BTD ENTERPRISES9638 N WILTEL9639 N SAN DIEGO TELE-SERVICES9642 N SUSAN DELETTERA9644 N VALERIE ERVIN9653 N BEDFORDSHIRE COMMUNICATIONS9662 N ENCORE AGENCY9663 R NEW-CELL, INC.9665 N PAUL SIUDZINSKI9668 N JAM RESEARCH9677 N JOYCE S. MARKHAM9686 N MARK PAUL BORNSTEIN9687 N ROZAR ASSOCIATES9688 N B.H. COMMUNICATION SERVICE9696 R WHYT-FM9722 R WSB, INC.9723 R WSB, INC.9727 R NYNEX-NEW YORK9732 N CRYSTAL MARCUS AUGUST9736 N SUSAN DELETTERA9737 N BURKE TELCOM SERVICES9747 N TELE-DIRECT PUBLICATIONS9748 N VALERIE ERVIN9754 R POST-NEWSWEEK STAT. - FLORIDA, INC.9754 R ERNEST J. ANDERSON, JR.9762 R ERNEST J. ANDERSON, JR.9762 R WSOC TELEVISION, INC.9766 N SUSAN DELETTERA9769 R ERNEST J. ANDERSON, JR.9769 R RICHARD S. BELL9773 N SUSAN DELETTERA9786 R WWRM, INC.9786 R ERNEST J. ANDERSON, JR.9794 R ERNEST J. ANDERSON, JR.9794 R WPXI, INC.9797 N STANLEY SHAPIRO9800 R TELECOMPUTE CORPORATION9805 N ARCHITECTURAL DIGEST9853 N FRANCES H. NAFTALIN9866 N BARBADOS TELE-COM9872 N NEW MEDIA VENTURES, INC.9876 N RCI LONG DISTANCE, INC.9877 N THELMA NELLES9883 R WTVD/CHANNEL 119898 N AGT LIMITED9900 N LEXICOM, INC.9911 N BOYD BYERS9918 R NEWSWEEKLY9919 R BRITE VOICE SYSTEMS9922 N DAVID W. GOODALE9933 N DAVID W. GOODALE9955 N DDI CORPORATION9966 N BOYD BYERS9977 N DENNY BROWN9979 R WCKG, INC.9980 R AMERITECH PAYPHONE SERVICES9985 R BELL ATLANTIC9988 N DENNY BROWN9990 N PDQ PHONE, INC.9991 N PILGRIM TELEPHONE, INC.9992 N PILGRIM TELEPHONE, INC.9993 N PILGRIM TELEPHONE, INC.9994 N PILGRIM TELEPHONE, INC.9995 N PILGRIM TELEPHONE, INC.9996 N PDQ PHONE, INC.9997 N PDQ PHONE, INC.9998 N PDQ PHONE, INC.


TABLE 13LIST OF 555 LINE NUMBER ASSIGNMENTS


LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO5080 N 2PM GROUP LTD. 3483 N ACTIVITY DIRECTORIES INTL., INC.4876 N 2PM GROUP LTD. 5674 N ADAM/CHARLES TEXTILES3569 N 555 FLOWERS, INC. 2010 N ADAM/CHARLES TEXTILES6374 N 555 INFO NET 4261 N ADAM/CHARLES TEXTILES4226 N 555 INFO NET 2833 N ADAM/CHARLES TEXTILES4647 N 555 INFO NET 0421 N ADAM/CHARLES TEXTILES2282 N 555 INFO NET 1234 R ADVANCED PURE WATER CORP.6874 N 555 MUSIC, INC. 5005 R ADVANCED PURE WATER CORP.2776 N 555 ON-LINE 0005 R ADVANCED PURE WATER CORP.8791 N 555 ON-LINE 0500 R ADVANCED PURE WATER CORP.0511 N 555 ON-LINE 5526 N ADVANTIS3291 N 555-FAX-IT 2426 N ADVANTIS3292 N 555-FAX-IT 2884 N ADVANTIS0411 N 555-FAX-IT 2378 N AERIE GROUP3294 N 555-FAX-IT 4698 N AGR ASSOCIATES3366 N 555-FAX-IT 8386 N AGR ASSOCIATES7664 N 555-SONG, INC. 4975 N AGR ASSOCIATES6336 N 800 CONCEPTS LLC 5644 N AGR ASSOCIATES3263 N 800 CONCEPTS LLC 9898 N AGT LIMITED2224 N 800 CONCEPTS LLC 1313 R AGT LIMITED5223 N 800 CONCEPTS LLC 7575 R AGT LIMITED9447 N 800 CONCEPTS LLC 1198 N AGT LIMITED9274 N 900 VOICE, INC. 4688 N AIKATERINI ASSOC.4567 N 900 VOICE, INC. 4657 N AIKATERINI ASSOC.3733 R 900 VOICE, INC. 4637 N AIKATERINI ASSOC.2887 N 900 VOICE, INC. 4673 N AIKATERINI ASSOC.2676 N 900 VOICE, INC. 1213 R AIR ONE, INC.6248 N A & H ENTERPRISES 1242 N AIR ONE, INC.5723 N A & H ENTERPRISES 1000 R AIR ONE, INC.7675 N A & H ENTERPRISES 1215 N AIR ONE, INC.6284 N A & H ENTERPRISES 4212 N AIR ONE, INC.6585 N ABC DAYTIME CIRCLE, INC. 3358 N AIRLINE VENTURE SVCS., INC.4677 N ABC DAYTIME CIRCLE, INC. 8724 N AIRLINE VENTURE SVCS., INC.2445 N ABC DAYTIME CIRCLE, INC. 2359 N AIRLINE VENTURE SVCS., INC.7687 N ABC ENTERPRISES 4892 N AIRWAYS CORPORATION4523 N ABC ENTERPRISES 8648 N AIRWAYS CORPORATION3532 N ABC ENTERPRISES 4482 N AIRWAYS CORPORATION3728 N ABC ENTERPRISES 3872 N AIRWAYS CORPORATION3686 N ABC ENTERPRISES 5722 N ALADDIN2221 N ABC RADIO NETWORKS, INC. 5678 N ALADDIN4458 N ABCD, INC. 5369 N ALADDIN4928 N ABCD, INC. 5747 N ALADDIN2834 N ABCD, INC. 5462 N ALADDIN2526 N ABCD, INC. 3597 N ALL AMERICAN TELEPHONE CO.7233 N ABCD, INC. 4999 N ALL AMERICAN TELEPHONE CO.3923 N ABRAM I. SACHS 4569 N ALL AMERICAN TELEPHONE CO.3926 N ABRAM I. SACHS 2275 N ALL AMERICAN TELEPHONE CO.3767 N ABRAM I. SACHS 2232 N ALL AMERICAN TELEPHONE CO.3889 N ABRAM I. SACHS 9455 N ALLEN EISDORFER ESQ.3878 N ABRAM I. SACHS 3223 N ALLURE MAGAZINE6655 R ACC CORP. 2558 N ALLURE MAGAZINE4835 N ACCESS INFO-NET, INC. 2295 N ALTIMONT COMMUNICATIONS6552 N ACCESS INFO-NET, INC. 8784 N ALTIMONT COMMUNICATIONS8767 N ACCESS INFO-NET, INC. 2838 N ALTIMONT COMMUNICATIONS6229 N ACCESS INFO-NET, INC. 2627 N ALTIMONT COMMUNICATIONS9256 N ACCESS INFO-NET, INC. 4356 N ALTIMONT COMMUNICATIONS4993 N ACCESS INFORMATION NETWORK 7322 N AMERICAN INTL. ENTERPRISES8786 N ACCESS INFORMATION NETWORK 7394 N AMERICAN INTL. ENTERPRISES4377 N ACCESS INFORMATION NETWORK 8732 N AMERICAN INTL. ENTERPRISES7269 N ACCESS INFORMATION NETWORK 6534 N AMERICAN INTL. ENTERPRISES3664 N ACCESS INFORMATION NETWORK 7236 N AMERICAN INTL. ENTERPRISES4736 N ACCESS UNLIMITED USA 2721 N AMERICAN PCS, L.P. (DBA APC)4725 N ACCESS UNLIMITED USA 7384 N AMERICAN PROTOCALL4278 N ACCESS UNLIMITED USA 7372 N AMERICAN PROTOCALL4466 N ACCESS UNLIMITED USA 1234 R AMERITECH5550 N ACCESS UNLIMITED USA 5252 R AMERITECH ADVERTISING SERVICES4678 N ACP CORP. 1225 N AMERITECH COMMUNICATIONS4754 N ACTIVITY DIRECTORIES INTL., INC. 0872 N AMERITECH COMMUNICATIONS2453 N ACTIVITY DIRECTORIES INTL., INC. 8720 N AMERITECH COMMUNICATIONS




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO1872 N AMERITECH COMMUNICATIONS 7597 N AURAND5858 N AMERITECH COMMUNICATIONS 3854 N AURAND5151 R AMERITECH INFO. INDUSTRY SVCS. 2538 N AURAND9980 R AMERITECH PAYPHONE SERVICES 8473 N AUTO VENTURE SVCS., INC.1500 R ANCHORAGE DAILY NEWS 7222 N AUTO VENTURE SVCS., INC.4200 R ANCHORAGE DAILY NEWS 8459 N AYSM CORP.6344 N ANDREW PENN 2322 N AYSM CORP.7359 N ANDREW PENN 5248 N AYSM CORP.7248 N ANDREW PENN 2677 N AYSM CORP.3436 N ANDREW PENN 4639 N A. JACOB ARTHUR ASSOC.6864 N ANDREW PENN 8146 N A. JACOB ARTHUR ASSOC.7344 N ANGEL COMMUNICATIONS CORP. 2636 N A. JACOB ARTHUR ASSOC.7734 N ANGEL COMMUNICATIONS CORP. 2438 N A. JACOB ARTHUR ASSOC.7354 N ANGEL COMMUNICATIONS CORP. 6455 N A. JACOB ARTHUR ASSOC.7765 N ANGEL COMMUNICATIONS CORP. 3792 N A.S.M. COMMUNICATION SERVICES7548 N ANGEL COMMUNICATIONS CORP. 4388 N A.S.M. COMMUNICATION SERVICES7505 N ANNAPOLIS SAILYARD 2645 N A.S.M. COMMUNICATION SERVICES7470 N ANNAPOLIS SAILYARD 4324 N A.S.M. COMMUNICATION SERVICES6350 N ANNAPOLIS SAILYARD 6742 N A.S.M. COMMUNICATION SERVICES6940 N ANNAPOLIS SAILYARD 2825 N B & A ENTERPRISES6637 N ANNAPOLIS SAILYARD 2284 N B & A ENTERPRISES3739 N ANNE E. CURTIS COMMUNICATIONS 4787 N B & A ENTERPRISES7334 N ANNE E. CURTIS COMMUNICATIONS 6246 N B & A ENTERPRISES7947 N ANNE E. CURTIS COMMUNICATIONS 9278 N B & C ENTERPRISES7256 N ANNE E. CURTIS COMMUNICATIONS 6285 N B & C ENTERPRISES7868 N ANNE E. CURTIS COMMUNICATIONS 4625 N B & C ENTERPRISES9255 N ARCHITECTURAL DIGEST 4723 N B & C ENTERPRISES9805 N ARCHITECTURAL DIGEST 0005 R BALTIMORE SUN COMPANY8705 N ARCHITECTURAL DIGEST 0004 R BALTIMORE SUN COMPANY2724 N ARCHITECTURAL DIGEST 9353 R BALTIMORE SUN COMPANY8361 N ARLINDO DASILVA 0002 R BALTIMORE SUN COMPANY5276 N ARLINDO DASILVA 0003 R BALTIMORE SUN COMPANY8442 N ARLINDO DASILVA 2685 N BANK OF MONTREAL7483 N ARLINDO DASILVA 6294 N BANK OF MONTREAL7369 N ARTHUR NAFTALIN 9326 N BANKCARD MARKETING NETWORK7628 N ARTHUR NAFTALIN 4884 N BANKCARD MARKETING NETWORK7258 N ARTHUR NAFTALIN 7364 N BANKCARD MARKETING NETWORK7442 N ARTHUR NAFTALIN 6736 R BANKCARD MARKETING NETWORK8458 N ASC 6472 N BANKCARD MARKETING NETWORK8424 N ASC 6987 N BARBADOS TELE-COM4536 N ASC 4822 N BARBADOS TELE-COM7545 N ASC 9866 N BARBADOS TELE-COM3723 N ASC 4389 N BARBADOS TELE-COM8004 N ASPEN COMMUNICATIONS CORP. 7292 N BARBADOS TELE-COM8003 N ASPEN COMMUNICATIONS CORP. 7575 R BC TEL3466 N ASPEN COMMUNICATIONS CORP. 1313 R BC TEL8006 N ASPEN COMMUNICATIONS CORP. 2574 N BEDFORDSHIRE COMMUNICATIONS8005 N ASPEN COMMUNICATIONS CORP. 3768 N BEDFORDSHIRE COMMUNICATIONS4672 N ASSOC. VENTURE SVCS., INC. 9653 N BEDFORDSHIRE COMMUNICATIONS4222 N ASSOC. VENTURE SVCS., INC. 2279 N BEDFORDSHIRE COMMUNICATIONS2847 N ASSOC. VENTURE SVCS., INC. 9342 N BEDFORDSHIRE COMMUNICATIONS4378 N ASSOC. VENTURE SVCS., INC. 7726 N BEJAY COMMUNICATIONS CORP.2278 N ASSOC. VENTURE SVCS., INC. 5293 N BEJAY COMMUNICATIONS CORP.4655 N ATLANTIC WEST INTERNATIONAL 7228 N BEJAY COMMUNICATIONS CORP.7362 N ATLANTIC WEST INTERNATIONAL 8435 N BEJAY COMMUNICATIONS CORP.4668 N ATLANTIC WEST INTERNATIONAL 7722 N BEJAY COMMUNICATIONS CORP.4733 N ATLANTIC WEST INTERNATIONAL 7382 N BELAIR COMMUNICATIONS, INC.7274 N ATLANTIC WEST INTERNATIONAL 8824 N BELAIR COMMUNICATIONS, INC.1919 N AT&T 5228 N BELAIR COMMUNICATIONS, INC.1288 N AT&T 6776 N BELAIR COMMUNICATIONS, INC.1515 R AT&T 5224 N BELAIR COMMUNICATIONS, INC.4123 N AT&T 6227 N BELINDA S. SIDES2243 N AUCTION VISION INT'L US, INC. 7455 N BELINDA S. SIDES8243 N AUCTION VISION INT'L US, INC. 8325 N BELINDA S. SIDES2786 N AUCTION VISION INT'L US, INC. 7743 N BELINDA S. SIDES6744 N AUDREY COX 8497 N BELINDA S. SIDES2592 N AUDREY COX 5454 R BELL ATLANTIC3629 N AUDREY COX 9985 R BELL ATLANTIC3879 N AUDREY COX 5665 R BELL ATLANTIC2736 N AUDREY COX 1515 R BELL ATLANTIC-NJ (GRANDFATHERED)




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO8433 N BELL CANADA 2448 N BRENDAN CORP.7575 R BELL CANADA 3996 N BRENDAN CORP.1313 R BELL CANADA 7383 N BRENDAN CORP.4776 N BELLSOUTH WIRELESS, INC. 2725 N BRENDAN CORP.4264 N BELLSOUTH WIRELESS, INC. 6328 N BRENDAN CORP.1616 N BENNETT PUBLICATIONS 5464 N BRIAN WEISBERG9378 N BERNIE SANSHUCK 4929 N BRIAN WEISBERG7278 N BERNIE SANSHUCK 5835 N BRIAN WEISBERG7565 N BERNIE SANSHUCK 2743 N BRIDE'S MAGAZINE6678 N BERNIE SANSHUCK 5274 N BRIDE'S MAGAZINE7688 N BERNIE SANSHUCK 9337 N BRIDE'S MAGAZINE2201 N BETTY JOE, INC. 8728 N BRIDE'S MAGAZINE2202 N BETTY JOE, INC. 4274 N BRIDE'S MAGAZINE2204 N BETTY JOE, INC. 9919 R BRITE VOICE SYSTEMS2205 N BETTY JOE, INC. 6696 R BRITE VOICE SYSTEMS2203 N BETTY JOE, INC. 3327 R BRITE VOICE SYSTEMS5682 N BEVERLYWOOD COMM. 4986 R BRITE VOICE SYSTEMS5639 N BEVERLYWOOD COMM. 4414 R BRITE VOICE SYSTEMS5426 N BEVERLYWOOD COMM. 8372 N BROOKS TELE-COM SERVICES5582 N BEVERLYWOOD COMM. 2293 N BROOKS TELE-COM SERVICES7609 N BF&L 8257 N BROOKS TELE-COM SERVICES9474 N BF&L 8846 N BROOKS TELE-COM SERVICES2728 N BF&L 9264 N BROOKS TELE-COM SERVICES5026 N BF&L 4752 N BT HOLDINGS, INC.4603 N BF&L 2867 N BT HOLDINGS, INC.5664 N BG ASSOCIATES 3337 N BT HOLDINGS, INC.3163 N BG ASSOCIATES 4865 N BT HOLDINGS, INC.6623 N BG ASSOCIATES 2883 N BT HOLDINGS, INC.3156 N BG ASSOCIATES 5847 N BT SERVICES, INC.3227 N BG ASSOCIATES 6239 N BT SERVICES, INC.7424 N BH INFORMATION CORP. 1661 N BT SERVICES, INC.6225 N BH INFORMATION CORP. 2661 N BT SERVICES, INC.5333 N BH INFORMATION CORP. 3786 N BT SERVICES, INC.2765 N BH INFORMATION CORP. 2582 N BT TELECOM, INC.2562 N BH INFORMATION CORP. 5842 N BT TELECOM, INC.1269 N BICOM 2264 N BT TELESIS, INC.7381 N BICOM 9277 N BT TELESIS, INC.6423 N BICOM 7466 N BT TELESIS, INC.8658 N BICOM 5347 N BT TELESIS, INC.4659 N BICOM 9636 N BTD ENTERPRISES3312 N BILL CHOBY 3255 N BTD ENTERPRISES3311 N BILL CHOBY 2399 N BTD ENTERPRISES4257 N BILLY M. COSPER, JR. 8693 N BTD ENTERPRISES9328 N BILLY M. COSPER, JR. 4001 N BTNA/TYMNET4635 N BILLY M. COSPER, JR. 2256 N BTNA/TYMNET6222 N BILLY M. COSPER, JR. 2272 N BTNA/TYMNET5100 R BIRMINGHAM NEWS COMPANY 4002 N BTNA/TYMNET5101 R BIRMINGHAM NEWS COMPANY 3869 N BTNA/TYMNET5102 R BIRMINGHAM NEWS COMPANY 1234 R BUCKS COUNTY COURIER TIMES5103 R BIRMINGHAM NEWS COMPANY 6789 R BUCKS COUNTY COURIER TIMES5104 R BIRMINGHAM NEWS COMPANY 2228 R BUCKS COUNTY COURIER TIMES7234 N BLAISCH PUBLISHING 4863 N BUC-VIN TELESERVICES8652 N BLUE AMBER MOTEL, INC. 3975 N BUC-VIN TELESERVICES0300 N BLUE AMBER MOTEL, INC. 2648 N BUC-VIN TELESERVICES0900 N BLUE AMBER MOTEL, INC. 7238 N BUC-VIN TELESERVICES4426 R BLUE RIDGE MOUNTAIN WATER, INC. 4374 N BUC-VIN TELESERVICES5677 R BLUE RIDGE MOUNTAIN WATER, INC. 4632 N BUDDY HOWE7289 N BOO ENTERPRISES 4722 N BUDDY HOWE1929 N BOO ENTERPRISES 8777 N BUDDY HOWE4345 N BOO ENTERPRISES 2422 N BUDDY HOWE4434 N BOWIE COMMUNICATIONS 1478 N BUDGET CALL LONG DISTANCE3734 N BOWIE COMMUNICATIONS 3698 N BUDGET CALL LONG DISTANCE3745 N BOWIE COMMUNICATIONS 9550 N BUDGET CALL LONG DISTANCE2783 N BOWIE COMMUNICATIONS 8249 N BURKE TELCOM SERVICES2693 N BOWIE COMMUNICATIONS 6779 N BURKE TELCOM SERVICES6622 N BOYD BYERS 8845 N BURKE TELCOM SERVICES9911 N BOYD BYERS 3548 N BURKE TELCOM SERVICES8833 N BOYD BYERS 9737 N BURKE TELCOM SERVICES7711 N BOYD BYERS 1228 R BURLINGTON COUNTY TIMES9966 N BOYD BYERS 1234 R BURLINGTON COUNTY TIMES




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO3637 N BUSINESS EDGE GROUP 8756 N CECELIA DOWNS8855 N BUSINESS TO CONSUMER NETWORK 3867 N CECELIA DOWNS5533 N BUSINESS TO CONSUMER NETWORK 6752 N CG COMMUNICATIONS CORP.3977 N BUSINESS TO CONSUMER NETWORK 6656 N CG COMMUNICATIONS CORP.7755 N BUSINESS TO CONSUMER NETWORK 8656 N CG COMMUNICATIONS CORP.4763 N BUSINESS TO CONSUMER NETWORK 7367 N CG COMMUNICATIONS CORP.4354 N B.H. COMMUNICATION SERVICE 7348 N CG COMMUNICATIONS CORP.9688 N B.H. COMMUNICATION SERVICE 4633 N CHAMBERLAIN COMMUNICATIONS6697 N B.H. COMMUNICATION SERVICE 7754 N CHAMBERLAIN COMMUNICATIONS2782 N B.H. COMMUNICATION SERVICE 3934 N CHAMBERLAIN COMMUNICATIONS6682 N B.H. COMMUNICATION SERVICE 7756 N CHAMBERLAIN COMMUNICATIONS7257 N C C RIDERS 8676 N CHAMBERLAIN COMMUNICATIONS7544 N C C RIDERS 3645 N CHARLOTTE DUNCAN8783 N C C RIDERS 6334 N CHARLOTTE DUNCAN4321 N CABLE & WIRELESS 3473 N CHARLOTTE DUNCAN4294 N CABLE & WIRELESS 2637 N CHARLOTTE DUNCAN5294 N CABLE & WIRELESS 2472 N CHARLOTTE DUNCAN6368 N CABLE & WIRELESS 2555 R CHICAGO TRIBUNE CO.2944 N CABLE & WIRELESS 9233 N CHRISTINE MARLIN7374 N CAC TELECOMM, INC. 4627 N CHRISTINE MARLIN7683 N CAC TELECOMM, INC. 3347 N CHRISTINE MARLIN3722 N CAC TELECOMM, INC. 3962 N CHRISTINE MARLIN4837 N CAC TELECOMM, INC. 5447 N CHRISTINE MARLIN4753 R CAHOKIA-DUPO HERALD 7645 N CHRISTOPHER HALE4327 R CAHOKIA-DUPO HERALD 8733 N CHRISTOPHER HALE7378 R CAHOKIA-DUPO HERALD 2386 N CHRISTOPHER P. OBERLE4646 N CANADA POST CORPORATION 3711 N CHRISTOPHER P. OBERLE6664 N CANADA POST CORPORATION 2346 N CHRISTOPHER P. OBERLE2633 N CANADA POST CORPORATION 4778 N CHRISTOPHER P. OBERLE2828 N CANADA TRUST CO. 2678 N CHRISTOPHER P. OBERLE2477 R CANADIAN COAST GUARD 2484 N CITIZENS UTILITIES6287 R CANADIAN COAST GUARD 5050 N CITIZENS UTILITIES8688 N CAPITAL NETWORK SYSTEM, INC. 7563 N CITY VENTURES8683 N CAPITAL NETWORK SYSTEM, INC. 7594 N CITY VENTURES5348 N CARLTON TELEPHONICS CORP. 7598 N CITY VENTURES4945 N CARLTON TELEPHONICS CORP. 7873 N CLARKE TRANSPORT CANADA1003 N CARLTON TELEPHONICS CORP. 7677 N CMR COMPANY2388 N CARLTON TELEPHONICS CORP. 7533 N CMR COMPANY3591 N CAROL SHAPIRO 5400 N CMR COMPANY3595 N CAROL SHAPIRO 4364 N CMR COMPANY1359 N CAROL SHAPIRO 2653 N COCA-COLA BEVERAGES LTD.3594 N CAROL SHAPIRO 7774 N COMMUNICATIONS VENTURE SVCS., INC.3598 N CAROL SHAPIRO 4288 N COMMUNICATIONS VENTURE SVCS., INC.4693 N CAROLINE MEGGINSON 2655 N COMMUNICATIONS VENTURE SVCS., INC.6847 N CAROLINE MEGGINSON 2771 N COMPUSERVE INCORPORATED3625 N CAROLINE MEGGINSON 2247 N COMPUSERVE INCORPORATED4746 N CAROLINE MEGGINSON 4277 N COMPUSERVE INCORPORATED4365 N CAROLINE MEGGINSON 4267 N COMPUSERVE INCORPORATED2742 N CAROLYN CHAMBERLAIN 2471 N COMPUSERVE INCORPORATED8734 N CAROLYN CHAMBERLAIN 4256 N COMPUTER LOAN ORG. SYS. INC4726 N CAROLYN CHAMBERLAIN 0600 R CONCORD TELEPHONE COMPANY7972 N CAROLYN CHAMBERLAIN 0500 R CONCORD TELEPHONE COMPANY2674 N CAROLYN HENRICK 7626 N CONDE NAST TRAVELER5255 N CAROLYN HENRICK 7225 N CONDE NAST TRAVELER6679 N CAROLYN HENRICK 1234 R CONDE' NAST/BON APPETIT4973 N CAROLYN HENRICK 8392 N CONNIE SIMMONS2972 N CAROLYN HENRICK 9627 N CONNIE SIMMONS3522 N CATHY S. SURACE 7464 N CONNIE SIMMONS6247 N CATHY S. SURACE 6969 N CONNIE SIMMONS5458 N CATHY S. SURACE 7662 N CONNIE SIMMONS2483 N CATHY S. SURACE 4911 R CONSUMERS GAS3467 N CATHY S. SURACE 2427 R CONSUMERS GAS2296 N CCB TELEPHONY, INC. 2852 N CORCORAN GROUP, INC.8468 N CCB TELEPHONY, INC. 8438 N CORCORAN GROUP, INC.8672 N CCB TELEPHONY, INC. 3423 N CORCORAN GROUP, INC.8436 N CCB TELEPHONY, INC. 3599 N CORCORAN GROUP, INC.6446 N CCB TELEPHONY, INC. 6862 N CORCORAN GROUP, INC.2394 N CECELIA DOWNS 4387 N CORPORATE TELEMANAGEMENT GROUP6957 N CECELIA DOWNS 8790 N CORPORATE TELEMANAGEMENT GROUP6439 N CECELIA DOWNS 0811 R COUNTY PRESS




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO8355 R COUNTY PRESS 3695 N DAVID H. LOCKWOOD5200 R COWLES MEDIA COMPANY 6425 N DAVID H. LOCKWOOD2500 R COWLES MEDIA COMPANY 3724 N DAVID H. LOCKWOOD8500 R COWLES MEDIA COMPANY 1998 R DAVID I. ADELMAN5800 R COWLES MEDIA COMPANY 5889 N DAVID LUTZ, ESQ.4346 R COWLES PUBLISHING CO. 8792 N DAVID L. SIMONS7389 R COWLES PUBLISHING CO. 6963 N DAVID L. SIMONS7388 R COWLES PUBLISHING CO. 3666 N DAVID L. SIMONS4643 R COWLES PUBLISHING CO. 2691 N DAVID L. SIMONS2946 N COX COMMUNICATIONS, INC. 8899 N DAVID W. GOODALE2269 N COX ENTERPRISES 8877 N DAVID W. GOODALE2699 N COX TECHNOLOGY INVESTMENTS 9922 N DAVID W. GOODALE4727 N COX TECHNOLOGY INVESTMENTS 9933 N DAVID W. GOODALE4269 N COX TECHNOLOGY INVESTMENTS 7356 N DDI CORPORATION6635 N CRAIG P. LEVINSOHN 5959 N DDI CORPORATION7883 N CRAIG P. LEVINSOHN 9955 N DDI CORPORATION0447 N CRAIG 'TAX FREEZE' FREIS 9555 N DDI CORPORATION0444 N CRAIG 'TAX FREEZE' FREIS 2211 N DDI CORPORATION0445 N CRAIG 'TAX FREEZE' FREIS 5027 N DEAN R. CHAMBERLAIN0448 N CRAIG 'TAX FREEZE' FREIS 4456 N DEAN R. CHAMBERLAIN0446 N CRAIG 'TAX FREEZE' FREIS 7778 N DEAN R. CHAMBERLAIN2543 N CREATIVE CALL MANAGEMENT 8428 N DEBBIE A. COSPER2872 N CREATIVE CALL MANAGEMENT 2866 N DEBBIE A. COSPER2548 N CREATIVE CALL MANAGEMENT 2429 N DEENA JORGENSON5569 N CREATIVE CALL MANAGEMENT 4442 N DEENA JORGENSON7446 N CREATIVE DIRECT MARKETING 2435 N DEENA JORGENSON2733 N CREDIT CENTRAL SVCS., INC. 5388 N DEENA JORGENSON2756 N CROFT CONSULTANTS 5233 N DEENA JORGENSON4476 N CROSSCONNECT 6877 N DEJA LOCKWOOD4362 N CROSSCONNECT 6468 N DEJA LOCKWOOD8353 N CROSSCONNECT 2877 N DEJA LOCKWOOD7265 N CROSSCONNECT 5673 N DEJA LOCKWOOD2723 N CROW INT'L. 5523 N DEJA LOCKWOOD8911 N CROW INT'L. 7264 N DENNIS TEMPLE7735 N CROW INT'L. 8876 N DENNIS TEMPLE1121 N CROW INT'L. 3398 N DENNIS TEMPLE8678 N CROW INT'L. 2586 N DENNIS TEMPLE8337 N CRYSTAL MARCUS AUGUST 7762 N DENNIS TEMPLE9732 N CRYSTAL MARCUS AUGUST 6688 N DENNY BROWN9344 N CRYSTAL MARCUS AUGUST 9988 N DENNY BROWN8838 N CRYSTAL MARCUS AUGUST 9977 N DENNY BROWN8262 N CRYSTAL MARCUS AUGUST 8866 N DENNY BROWN4205 N CSR ASSOCIATES 6243 N DEREK NESS7763 N CSR ASSOCIATES 6672 N DEREK NESS5205 N CSR ASSOCIATES 7761 N DEREK NESS8083 N CSR ASSOCIATES 7200 N DEREK NESS4427 N CT FINANCIAL 8273 N DEREK NESS8772 N CURTIS WORLDWIDE ENTERPRISES, INC. 3382 N DETAILS MAGAZINE4382 N CURTIS WORLDWIDE ENTERPRISES, INC. 3857 N DETAILS MAGAZINE4634 N CURTIS WORLDWIDE ENTERPRISES, INC. 3993 N DIANE BAKER-LOCKWOOD3766 N CURTIS WORLDWIDE ENTERPRISES, INC. 2492 N DIANE BAKER-LOCKWOOD3636 N CURTIS WORLDWIDE ENTERPRISES, INC. 0980 N DIANE BAKER-LOCKWOOD8008 N C&C FINANCIAL & COMMUNICATIONS 5445 N DIANE BAKER-LOCKWOOD8007 N C&C FINANCIAL & COMMUNICATIONS 8482 R DISPATCH8787 N C&C FINANCIAL & COMMUNICATIONS 9355 R DISPATCH8653 N C&C FINANCIAL & COMMUNICATIONS 9273 N DIVAD TELECOM4684 N C&C FINANCIAL & COMMUNICATIONS 4326 N DIVAD TELECOM9191 R C.H. EPPERT 5273 N DIVAD TELECOM5911 R C.H. EPPERT 5367 N DIVAD TELECOM9111 R C.H. EPPERT 3326 N DIVAD TELECOM0911 R C.H. EPPERT 4529 N DONALD SIMMONS2787 N DAILY HERALD 4465 N DONALD SIMMONS2527 N DAILY HERALD 6279 N DONALD SIMMONS4054 N DANA N. MCKINLEY 8677 N DONNA BROWN5438 N DARREN CHAFFEE 5577 N DONNA BROWN0700 N DARREN CHAFFEE 6644 N DONNA BROWN0200 N DARREN CHAFFEE 8822 N DONNA BROWN5787 N DARREN CHAFFEE 7733 N DONNA BROWN6277 N DAVID H. LOCKWOOD 3853 N DPC TELE-SERVICES9465 N DAVID H. LOCKWOOD 6946 N DPC TELE-SERVICES




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LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO4777 N STATE OF NEVADA 2767 N TANGLEWOOD COMMUNICATION SVCS.3331 N STATE OF NEVADA 3782 N TANGLEWOOD COMMUNICATION SVCS.6777 N STATE OF NEVADA 3295 N TANGLEWOOD COMMUNICATION SVCS.6467 N STELLA WEISS 4268 N TARGET REALTY5477 N STELLA WEISS 8352 N TARGET REALTY3453 N STELLA WEISS 4839 N TARGET REALTY3665 N STELLA WEISS 4238 N TARGET REALTY4524 N STEPHEN SMITH 5478 R TARGET REALTY7332 N STEPHEN SMITH 8292 N TAS ENTERPRISES1879 N STEPHEN SMITH 6596 N TAS ENTERPRISES6274 N STEPHEN SMITH 9321 N TAS ENTERPRISES2739 N STEVEN D. MONTGOMERY 8854 N TAS ENTERPRISES4721 N STEVEN D. MONTGOMERY 3593 N TAS ENTERPRISES5384 N STEVEN D. MONTGOMERY 6389 N TAS INDUSTRIES2762 N STEVEN R. KATZ 8865 N TAS INDUSTRIES2844 N STEVEN R. KATZ 6385 N TAS INDUSTRIES4272 N STEVEN R. KATZ 8864 N TAS INDUSTRIES7673 N STONEBRAKER & WILSON, INC. 1700 R TEK COMMUNICATIONS, INC.2628 N STONEBRAKER & WILSON, INC. 1600 R TEK COMMUNICATIONS, INC.3865 N STREET & SMITH'S 1900 R TEK COMMUNICATIONS, INC.7277 N STREET & SMITH'S 1800 R TEK COMMUNICATIONS, INC.5425 N STREET & SMITH'S 6476 N TELCO PLANNING3874 N STREET & SMITH'S 4221 N TELCO PLANNING7867 N STREET & SMITH'S 4372 N TELCO PLANNING1502 R ST. FRANCIS REGIONAL MEDICAL CENTER 6858 N TELCO PLANNING1504 R ST. FRANCIS REGIONAL MEDICAL CENTER 8726 N TELCO PLANNING1501 R ST. FRANCIS REGIONAL MEDICAL CENTER 0555 N TELECENTER INC.1503 R ST. FRANCIS REGIONAL MEDICAL CENTER 9467 N TELECOM TECHNOLOGIES1505 R ST. FRANCIS REGIONAL MEDICAL CENTER 5398 N TELECOM TECHNOLOGIES8862 N SUMMERHILL ENTERPRISES 9800 R TELECOMPUTE CORPORATION8861 N SUMMERHILL ENTERPRISES 6282 N TELECOMPUTE CORPORATION8867 N SUMMERHILL ENTERPRISES 9300 N TELECOMPUTE CORPORATION8860 N SUMMERHILL ENTERPRISES 8000 R TELE-DIRECT PUBLICATIONS8868 N SUMMERHILL ENTERPRISES 9747 N TELE-DIRECT PUBLICATIONS9461 N SUMMERHILL VENTURES, INC. 3937 N TELEDONTICS, INC.4332 N SUMMERHILL VENTURES, INC. 2229 N TELEDONTICS, INC.3494 N SUMMERHILL VENTURES, INC. 3273 N TELEFARE COMMUNICATIONS, INC.6725 N SUMMERHILL VENTURES, INC. 2437 N TELEHEALTH SERVICES, INC.8291 N SUMMERHILL VENTURES, INC. 4683 N TELEHOTEL ENTERPRISES, INC.8785 N SUMMIT COMMUNICATIONS 5653 N TELEJOKE SERVICES, INC.1949 N SUMMIT COMMUNICATIONS 4253 N TELE-LAWYER, INC.2392 N SUMMIT COMMUNICATIONS 2030 N TELEMATION INTERNATIONAL6460 N SUMMIT COMMUNICATIONS 8600 N TELEMATION INTERNATIONAL7814 N SUMMIT COMMUNICATIONS 6100 N TELEMATION INTERNATIONAL9773 N SUSAN DELETTERA 6300 N TELEMATION INTERNATIONAL9736 N SUSAN DELETTERA 8400 N TELEMATION INTERNATIONAL9642 N SUSAN DELETTERA 3678 N TELEPHONE BROADCASTING SYSTEMS9766 N SUSAN DELETTERA 2800 N TELEPHONE BROADCASTING SYSTEMS9475 N SUSAN DELETTERA 3655 N TELEPHONE BROADCASTING SYSTEMS3259 N SUSAN M. STONE 7245 N TELERAIL SERVICES, INC.7957 N SUSAN M. STONE 4737 N TELEREP, INC.6006 N SUSAN M. STONE 4897 N TELESERVE, INC.8389 N SUSAN M. STONE 6366 N TELESERVE, INC.5254 N SUSAN M. STONE 4367 N TELESERVE, INC.2775 N SYLVIA BLAISCH 6266 N TELESERVE, INC.5288 N SYLVIA BLAISCH 8294 N TELETAXI SERVICES INC.5272 N SYLVIA BLAISCH 2100 N TELETEL5877 N SYLVIA BLAISCH 3030 N TELETEL6394 N SYLVIA BLAISCH 7473 N TELETEL2020 N SYNCRONET, INC. 0505 N TELETEL4468 N SYNCRONET, INC. 9253 N TELEWAKE SERVICES, INC.2400 N SYNCRONET, INC. 4225 N TELPLEX INTERNATIONAL LLC1555 N SYRACUSE NEWSPAPER 2836 N TELPLEX INTERNATIONAL LLC0011 N SYRACUSE NEWSPAPER 2667 N TERATECH, INC.2111 N SYRACUSE NEWSPAPER 3475 N TERATECH, INC.4141 N SYRACUSE NEWSPAPER 6453 N TERATECH, INC.3737 N SYRACUSE NEWSPAPER 7663 N TERRIAN CORP.3669 N T & J INFORMATION 2845 N TERRIAN CORP.8222 N T & J INFORMATION 5296 N TERRIAN CORP.3935 N T & J INFORMATION 8453 N TERRIAN CORP.2245 N T & J INFORMATION 2869 N TERRIAN CORP.5393 N T & J INFORMATION 3329 N TERRIE GILPIN5945 N TAKEOUT TAXI HOLDINGS, INC. 4829 N TETHRA CORP.1868 N TAKEOUT TAXI HOLDINGS, INC. 2967 N TETHRA CORP.1328 N TAKEOUT TAXI HOLDINGS, INC. 3362 N TETHRA CORP.9266 N TAKEOUT TAXI HOLDINGS, INC. 2267 N TETHRA CORP.1357 N TAKEOUT TAXI HOLDINGS, INC. 4738 N TETHRA CORP.5282 N TANGLEWOOD COMMUNICATION SVCS. 3583 R TEXAS MEDICAL PAGING2797 N TANGLEWOOD COMMUNICATION SVCS. 7387 R TEXAS MEDICAL PAGING




LINE NO. TYPE ASSIGNED TO LINE NO. TYPE ASSIGNED TO5875 R TEXAS MEDICAL PAGING 0014 N US NETWORK SERVICES9877 N THELMA NELLES 1234 R US WEST2568 N THELMA NELLES 4652 R US WEST COMMUNICATIONS8277 N THELMA NELLES 7378 R US WEST COMMUNICATIONS6889 N THELMA NELLES 2262 N US WEST MARKETING RESOURCES6867 N THELMA NELLES 9359 N US WEST MARKETING RESOURCES1892 N THIRD STREET CHATTER 3748 N US WEST MARKETING RESOURCES4265 N THIRD STREET CHATTER 8999 N US WEST MARKETING RESOURCES1688 N THIRD STREET CHATTER 8792 R US WEST NEW VECTOR GROUP1266 N THIRD STREET CHATTER 3868 R US WEST NEW VECTOR GROUP1622 N THIRD STREET CHATTER 9468 N VALERIE ERVIN6289 N THOMAS J. HUGHES, III 9484 N VALERIE ERVIN8722 N THOMAS J. HUGHES, III 9748 N VALERIE ERVIN2666 N THOMAS J. HUGHES, III 9644 N VALERIE ERVIN2748 N THOMAS J. HUGHES, III 8953 N VALERIE ERVIN8336 N THOMAS J. HUGHES, III 3247 N VANITY FAIR6278 R TIME WARNER COMMUNICATIONS 8383 N VANITY FAIR3833 R TIME WARNER COMMUNICATIONS 5423 N VIRGINIA BEACH COMMUNICATIONS CORP.2263 R TIME WARNER COMMUNICATIONS 7622 N VIRGINIA BEACH COMMUNICATIONS CORP.8980 R TIME WARNER TELECOMMUNICATIONS 8643 N VIRGINIA BEACH COMMUNICATIONS CORP.7270 N TIME WARNER TELECOMMUNICATIONS 3672 N VIRGINIA BEACH COMMUNICATIONS CORP.5323 R TIMES LEADER 4287 N VIRGINIA BEACH COMMUNICATIONS CORP.3524 N TIMES LEADER 7738 N VISUAL RADIO7266 R TIMES OF TRENTON PUBLISHING CORP. 8439 N VOGUE6910 R TIMES OF TRENTON PUBLISHING CORP. 3343 N VOGUE2500 R TIMES-PICAYUNE PUBLISHING CORP. 2442 N VOGUE3500 R TIMES-PICAYUNE PUBLISHING CORP. 9327 N VOGUE6500 R TIMES-PICAYUNE PUBLISHING CORP. 5893 N VOGUE4500 R TIMES-PICAYUNE PUBLISHING CORP. 8725 N VOICE INFO, SVCS., INC.7500 R TIMES-PICAYUNE PUBLISHING CORP. 1996 R VOICE INFO, SVCS., INC.6400 N TODAY'S HOMES 8863 N VOICES FROM HOME, INC.8200 N TODAY'S HOMES 8642 N VOICES FROM HOME, INC.6800 N TODAY'S HOMES 6647 N VOX SERVICES, INC.6200 N TODAY'S HOMES 5386 R VOX-TEL2746 N TOP LINE RESOURCES 7696 R WABC-TV7427 N TOP LINE RESOURCES 7639 R WABC-TV4744 N TOP LINE RESOURCES 9222 R WABC-TV4711 N TOP LINE RESOURCES 5427 N WALTER MALAKOFF8226 N TOP LINE RESOURCES 5863 N WALTER MALAKOFF1010 R TORONTO STAR 6296 N WALTER MALAKOFF1000 R TORONTO STAR 5883 N WALTER MALAKOFF6942 N TOUCH PHONE PRODUCTIONS, INC. 5927 N WALTER MALAKOFF2569 N TOUCH PHONE PRODUCTIONS, INC. 7799 N WARREN JASON8542 N TOUCH PHONE PRODUCTIONS, INC. 8663 N WARREN JASON2888 N TOUCH PHONE PRODUCTIONS, INC. 1177 N WARREN JASON1234 R TRI-CITY HERALD 5344 N WASHINGTON POST COMPANY6789 R TRI-CITY HERALD 7678 N WASHINGTON POST COMPANY4841 N TUNA CORP. 4455 N WASHINGTON POST COMPANY9258 N TUNA CORP. 7347 N WASHINGTON POST COMPANY8229 N TUNA CORP. 6354 N WATERFRONT COMMUNICATIONS3275 N TUNA CORP. 6358 N WATERFRONT COMMUNICATIONS1834 N TZS CORP. 6357 N WATERFRONT COMMUNICATIONS4472 N TZS CORP. 6356 N WATERFRONT COMMUNICATIONS2482 N TZS CORP. 6355 N WATERFRONT COMMUNICATIONS2276 N TZS CORP. 9566 R WATERLOO REPUBLIC-TIMES7287 N TZS CORP. 6676 R WATERLOO REPUBLIC-TIMES2524 N T.C.R. COMMUNICATIONS L.L.C. 9428 R WATERLOO REPUBLIC-TIMES2226 N T.C.R. COMMUNICATIONS L.L.C. 2478 N WAYLAND COMMUNICATIONS2546 N T.C.R. COMMUNICATIONS L.L.C. 2835 N WAYLAND COMMUNICATIONS3533 N T.C.R. COMMUNICATIONS L.L.C. 3492 N WAYLAND COMMUNICATIONS2684 N T.C.R. COMMUNICATIONS L.L.C. 2839 N WAYLAND COMMUNICATIONS8686 N T.L. TELE-SERVICES 2964 N WAYLAND COMMUNICATIONS7542 N T.L. TELE-SERVICES 6387 N WAYNE M. HAMMERLY7745 N T.L. TELE-SERVICES 7472 N WAYNE M. HAMMERLY6934 N T.L. TELE-SERVICES 7833 N WAYNE M. HAMMERLY4538 N UNASOURCE MARKETING GROUP 9597 N WAYNE M. HAMMERLY2529 N UNASOURCE MARKETING GROUP 9265 N WAYNE M. HAMMERLY2488 N UNASOURCE MARKETING GROUP 9254 R WCKG, INC.7373 N UNASOURCE MARKETING GROUP 9979 R WCKG, INC.8667 N UNASOURCE MARKETING GROUP 1079 R WCKG, INC.3673 N UNICOM CORPORATION 1059 R WCKG, INC.1860 R UNION NEWS & SUNDAY REPUBLICAN 9331 N WEDDINGFONE, INC.1234 R UNION NEWS & SUNDAY REPUBLICAN 8727 N WEDDINGFONE, INC.1300 R UNION NEWS & SUNDAY REPUBLICAN 3642 N WEDDINGFONE, INC.1200 R UNION NEWS & SUNDAY REPUBLICAN 2933 N WEDDINGFONE, INC.0012 N US NETWORK SERVICES 3527 N WEDDINGFONE, INC.0013 N US NETWORK SERVICES 7399 N WEPS, INC.4747 N US NETWORK SERVICES 5777 N WESLEY MEDICAL CENTER0010 N US NETWORK SERVICES 7878 N WESLEY MEDICAL CENTER




LINE NO. TYPE ASSIGNED TO3020 N WESLEY MEDICAL CENTER3579 N WESLEY MEDICAL CENTER3050 N WESLEY MEDICAL CENTER9388 R WFTV, INC.9446 R WHIO, INC.1290 R WHIO, INC.5991 R WHIO, INC.7338 N WHOLE EARTH GREEN PAGES7444 N WHOLE EARTH GREEN PAGES5551 N WHOLE EARTH GREEN PAGES1963 R WHYT-FM5267 R WHYT-FM9696 R WHYT-FM1211 N WHYT-FM6789 R WICHITA EAGLE & BEACON PUBLISHING8000 R WICHITA EAGLE & BEACON PUBLISHING5298 N WILL KAHANE1529 N WILL KAHANE5295 N WILL KAHANE1842 N WILL KAHANE8296 N WILTEL8297 N WILTEL9638 N WILTEL8295 N WILTEL1051 R WIOD, INC.6102 R WIOD, INC.9352 R WIOD, INC.2366 N WIRELESS ONE NETWORK8743 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.8745 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.8744 R WJR -DIV. OF CAPITAL CITIES/ABC, INC.0957 N WJR -DIV. OF CAPITAL CITIES/ABC, INC.2242 N WM. HARDASH COMMUNICATIONS4843 N WM. HARDASH COMMUNICATIONS6888 N WM. HARDASH COMMUNICATIONS4813 N WM. HARDASH COMMUNICATIONS3624 N WM. HARDASH COMMUNICATIONS9386 N W-O TELCOM SERVICES, INC.9385 N W-O TELCOM SERVICES, INC.9384 N W-O TELCOM SERVICES, INC.9383 N W-O TELCOM SERVICES, INC.9382 N W-O TELCOM SERVICES, INC.9587 N WORD OF MOUTH ADVERTISING6962 N WORD OF MOUTH ADVERTISING2053 N WORD OF MOUTH ADVERTISING2003 N WORD OF MOUTH ADVERTISING2747 N WORLD WIDE NETWORKS3742 N WORLD WIDE NETWORKS9794 R WPXI, INC.2985 R WSB, INC.1041 R WSB, INC.9723 R WSB, INC.9722 R WSB, INC.7502 R WSB, INC.9762 R WSOC TELEVISION, INC.6211 R WTVD/CHANNEL 116299 R WTVD/CHANNEL 119883 R WTVD/CHANNEL 116202 R WWRM, INC.9786 R WWRM, INC.9276 R WWRM, INC.1073 R WWRM, INC.9263 R WWRM, INC.8322 N YACHT FUND COMMUNICATIONS7872 N YACHT FUND COMMUNICATIONS8478 N YACHT FUND COMMUNICATIONS9345 N YACHT FUND COMMUNICATIONS8363 N YACHT FUND COMMUNICATIONS4766 N YGBK CORPORATION8769 N YGBK CORPORATION8252 N YGBK CORPORATION7437 N YGBK CORPORATION6626 N YGBK CORPORATION2692 N ZASSODA ENTERPRISES8342 N ZASSODA ENTERPRISES7053 N ZASSODA ENTERPRISES7956 N ZOOM VIDEO PRODUCTIONS6687 N ZOOM VIDEO PRODUCTIONS3687 N ZOOM VIDEO PRODUCTIONS


TABLE 14TELEPHONE NUMBERS ASSIGNED FOR 800 SERVICE

(REPORTED AT THE END OF THE MONTH SHOWN)

WORKING MISC* TOTAL SPARE 800YEAR MONTH 800 800 800 NUMBERS

NUMBERS NUMBERS NUMBERS STILLASSIGNED AVAILABLE

1993 APRIL 2,448,985 642,725 3,091,710 4,618,290MAY 2,511,933 708,192 3,220,125 4,489,875JUNE 2,589,123 722,006 3,311,129 4,398,871JULY 2,675,483 705,416 3,380,899 4,329,101AUGUST 2,738,259 701,009 3,439,268 4,270,732SEPTEMBER 2,818,262 639,547 3,457,809 4,252,191OCTOBER 2,891,994 660,544 3,552,538 4,157,462NOVEMBER 3,083,250 728,514 3,811,764 3,898,236DECEMBER 3,155,955 731,438 3,887,393 3,822,607

1994 JANUARY 3,257,540 580,216 3,837,756 3,872,244FEBRUARY 3,381,646 731,005 4,112,651 3,597,349MARCH 3,516,620 743,813 4,260,433 3,449,567APRIL 3,659,129 699,212 4,358,341 3,351,659MAY 3,793,865 738,767 4,532,632 3,177,368JUNE 3,933,037 792,698 4,725,735 2,984,265JULY 4,099,174 699,803 4,798,977 2,911,023AUGUST 4,312,486 807,881 5,120,367 2,589,633SEPTEMBER 4,506,014 841,381 5,347,395 2,362,605OCTOBER 4,611,014 871,684 5,482,698 2,227,302NOVEMBER 4,817,854 875,416 5,693,270 2,016,730DECEMBER 4,948,605 763,235 5,711,840 1,998,160

1995 JANUARY 5,096,646 807,294 5,903,940 1,806,060FEBRUARY 5,278,800 811,221 6,090,021 1,619,979MARCH 5,528,723 793,771 6,322,494 1,387,506APRIL 5,741,780 797,902 6,539,682 1,170,318MAY 5,980,848 843,093 6,823,941 886,059JUNE 6,340,534 481,633 6,822,167 887,833JULY 6,402,785 443,717 6,846,502 863,498AUGUST 6,428,120 442,270 6,870,390 839,610SEPTEMBER 6,503,018 437,215 6,940,233 769,767OCTOBER 6,583,344 396,605 6,979,949 730,051NOVEMBER 6,647,880 310,043 6,957,923 752,077DECEMBER 6,700,576 286,487 6,987,063 722,937

1996 JANUARY 6,766,607 297,001 7,063,608 646,392FEBRUARY 6,861,093 335,557 7,196,650 513,350MARCH 6,907,098 293,244 7,200,342 509,658APRIL 6,934,085 280,927 7,215,012 494,988MAY 6,943,620 333,140 7,276,760 433,240JUNE 6,986,821 324,899 7,311,720 398,280JULY 7,022,309 339,900 7,362,209 347,791AUGUST 7,074,772 311,273 7,386,045 323,955SEPTEMBER 7,119,167 310,562 7,429,729 280,271OCTOBER 7,185,135 325,088 7,510,223 199,777NOVEMBER 7,242,377 337,502 7,579,879 130,121DECEMBER 7,272,819 343,905 7,616,724 93,276

1997 JANUARY 7,333,632 323,804 7,657,436 52,564FEBRUARY 7,388,696 318,571 7,707,267 2,733MARCH 7,402,769 305,362 7,708,131 1,869APRIL 7,411,118 296,925 7,708,043 1,957

* MISCELLANEOUS NUMBERS INCLUDE THOSE IN THE 800 SERVICE MANAGEMENT SYSTEM MAINTAINED BY DSMI

AND CATEGORIZED AS RESERVED, ASSIGNED BUT NOT YET ACTIVATED, RECENTLY DISCONNECTED, OR SUSPENDED.

89

TABLE 15TELEPHONE NUMBERS ASSIGNED FOR 888 SERVICE

(REPORTED AT THE END OF THE MONTH SHOWN)

WORKING MISC* TOTAL SPARE 888YEAR MONTH 888 888 888 NUMBERS

NUMBERS NUMBERS NUMBERS STILLASSIGNED AVAILABLE

1996 FEBRUARY 67,399 560,598 627,997 7,342,003MARCH 267,874 568,574 836,448 7,133,552APRIL 442,005 565,402 1,007,407 6,962,593MAY 707,374 542,428 1,249,802 6,720,198JUNE 922,849 544,079 1,466,928 6,503,072JULY 1,157,770 549,845 1,707,615 6,262,385AUGUST 1,437,660 576,399 2,014,059 5,955,941SEPTEMBER 1,641,519 590,345 2,231,864 5,738,136OCTOBER 1,886,663 629,365 2,516,028 5,453,972NOVEMBER 2,074,600 622,375 2,696,975 5,273,025DECEMBER 2,255,163 601,766 2,856,929 5,113,071

1997 JANUARY 2,457,250 591,533 3,048,783 4,921,217FEBRUARY 2,654,984 629,997 3,284,981 4,685,019MARCH 2,857,608 661,164 3,518,772 4,451,228APRIL 3,097,015 646,709 3,743,724 4,226,276

* MISCELLANEOUS NUMBERS INCLUDE THOSE IN THE 888 SERVICE MANAGEMENT SYSTEM MAINTAINED BY DSMI AND CATEGORIZED AS RESERVED, ASSIGNED BUT NOT YET ACTIVATED, RECENTLY DISCONNECTED, OR SUSPENDED.

90

TABLE 16900 CODE BALANCE SHEET


NUMBERASSIGNED CODES OF CODES

ASSIGNED TO BELL OPERATING COMPANIES FOR INTRALATA 37 CALLS AND A COMMON DATA BASEASSIGNED TO CANADIAN CARRIERS 15ASSIGNED TO OFFSHORE AND CARIBBEAN CARRIERS 6

ASSIGNED TO INTEREXCHANGE CARRIERSAT&T 54MCI 48LDDS 45FRONTIER 23SPRINT 20ONCOR/ITI 1060 OTHERS* 136 TOTAL 336

CODES NOT USABLE (211, 311, ETC.) 8CODES NOT USED FOR 900 SERVICE (000-199) 200UNASSIGNED CODES 398 TOTAL CODES 1,000

* THIS GROUP CONSISTS PRIMARILY OF INTEREXCHANGE CARRIERS, BUT MAY ALSOINCLUDE A NUMBER OF FIRMS THAT USE THE CODES FOR OTHER PURPOSES.

91

TABLE 17NUMBER OF 900 CODES ASSIGNED TO INTEREXCHANGE CARRIERS

CODES TOTAL CODES NEW FIRMS TOTAL FIRMSASSIGNED ASSIGNED ADDED HOLDING CODES

DURING AT END DURING AT ENDYEAR QUARTER OF QUARTER QUARTER OF QUARTER

1987 1ST QUARTER N/A 24 N/A 12ND QUARTER 7 31 2 33RD QUARTER 8 39 3 64TH QUARTER 11 50 2 8

1988 1ST QUARTER 14 64 5 132ND QUARTER 34 98 9 223RD QUARTER 2 100 0 224TH QUARTER 40 140 5 27



1991 1ST QUARTER 16 308 6 822ND QUARTER 13 321 4 863RD QUARTER 1 316 1 844TH QUARTER - 315 - 84

1992 1ST QUARTER 1 316 1 852ND QUARTER - 316 - 853RD QUARTER 1 300 1 814TH QUARTER 5 298 1 81

1993 1ST QUARTER 6 306 1 822ND QUARTER - 306 - 823RD QUARTER 2 308 1 824TH QUARTER 1 308 - 81

1994 1ST QUARTER 9 317 3 832ND QUARTER - 317 - 833RD QUARTER 1 318 1 844TH QUARTER 1 318 1 83

1995 1ST QUARTER 1 320 1 822ND QUARTER 6 321 2 843RD QUARTER - 321 - 844TH QUARTER 7 328 3 78

1996 1ST QUARTER 5 333 1 752ND QUARTER 4 322 - 683RD QUARTER 6 323 1 644TH QUARTER 7 326 1 66

1997 1ST QUARTER - 336 - 66

92



CODE ASSIGNED TO CODE ASSIGNED TO200 AT&T COMMUNICATIONS 329 MCI210 AT&T COMMUNICATIONS 330 AMERICAN INFORMATION NETWORK / DATA DEVICE220 AT&T COMMUNICATIONS 331 LDDS WORLDCOM221 CABLE & WIRELESS, INC. 332 PILGRIM TELEPHONE CO.222 MARATHON COMMUNICATIONS 333 U S WEST COMMUNICATIONS223 CABLE & WIRELESS, INC. 334 BERMUDA TELEPHONE CO. (BERTELCO)224 FRONTIER COMMUNICATIONS SERVICES, INC. 335 BELL ATLANTIC225 AT&T COMMUNICATIONS 336 MCI226 MCI 337 NORTHERN ARIZONA LONG DISTANCE227 FRONTIER COMMUNICATIONS SERVICES, INC. 338 AMERITECH AUDIOTEX SERVICES, INC.229 LDDS WORLDCOM 339 AT&T COMMUNICATIONS230 SPRINT 340 AMERITECH AUDIOTEX SERVICES, INC.231 TELECOM OPTIONS PLUS, INC. 341 U S WEST COMMUNICATIONS232 SUPERIOR TELECOM 342 AT&T COMMUNICATIONS233 CABLE & WIRELESS, INC. 344 AT&T COMMUNICATIONS234 TELEMATIONS INTERNATIONAL / ONCOR COMMS. 345 FRONTIER COMMUNICATIONS SERVICES, INC.235 AMERITECH SERVICES 346 SPRINT236 FRONTIER COMMUNICATIONS SERVICES, INC. 347 MCI238 DELTA COMMUNICATIONS, INC. 349 NETWORK LONG DISTANCE239 DELTA COMMUNICATIONS, INC. 350 AT&T COMMUNICATIONS240 U S WEST COMMUNICATIONS 355 LDDS WORLDCOM242 SUPERIOR TELECOM 356 ACC LONG DISTANCE244 PRIMETEL COMMUNICATIONS, INC. 357 LDDS WORLDCOM245 AMERIVISION COMMUNICATIONS, INC. 360 PRIMETEL COMMUNICATIONS, INC.246 SPRINT 361 LCI INTERNATIONAL247 PHOENIX COMMUNICATIONS GROUP 365 SPRINT / LONG DISTANCE USA248 AMERITECH SERVICES 366 CONSUMER DATA SOLUTIONS (CDS)250 AT&T COMMUNICATIONS 367 AMERITECH AUDIOTEX SERVICES, INC.252 U. S. LINK LONG DISTANCE 369 TELEMATIONS INTERNATIONAL / ONCOR COMMS.254 TOTAL-TEL USA 370 AT&T COMMUNICATIONS255 MCI 373 LDDS WORLDCOM258 TELEMATIONS INTERNATIONAL / ONCOR COMMS. 374 CONSOLIDATED COMMUNICATIONS259 LONG DISTANCE SAVERS 377 SPRINT / SPRINTNET260 AT&T COMMUNICATIONS 378 MCI262 SPRINT 382 SCHERERS COMMUNICATIONS GROUP, INC.263 MCI 386 SPRINT264 ADVANTAGE NETWORK, INC. 388 MCI265 MCI 395 FRONTIER COMMUNICATIONS SERVICES, INC.266 LDDS WORLDCOM 399 PAC-WEST TELECOMM dba AMERICALL267 MCI 400 AT&T COMMUNICATIONS268 AT&T COMMUNICATIONS 401 GTE HAWAIIAN TELEPHONE COMPANY269 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 404 NETWORK TELEPHONE SERVICES, INC.272 BELL ATLANTIC 407 AT&T COMMUNICATIONS273 STENTOR CANADIAN NETWORK MANAGEMENT 408 UNITED TELEPHONE LONG DISTANCE275 LDDS WORLDCOM 410 AT&T COMMUNICATIONS277 INTERACTIVE TELECOM NETWORK, INC. 412 LDDS WORLDCOM278 PHOENIX COMMUNICATIONS GROUP 414 SCHERERS COMMUNICATIONS GROUP, INC.280 AMERITECH SERVICES 420 AT&T COMMUNICATIONS282 LCI INTERNATIONAL 421 BITTEL TELECOMMUNICATIONS CORPORATION284 BTI TELECOMMUNICATIONS SERVICES 422 FRONTIER COMMUNICATIONS SERVICES, INC.285 MCI 424 LDDS WORLDCOM286 PRIMETEL COMMUNICATIONS, INC. 425 CAPITAL NETWORK SYSTEM, INC.287 MCI 426 PILGRIM TELEPHONE CO.288 AT&T COMMUNICATIONS 428 AMERITECH SERVICES289 MCI 429 NORTH COUNTY COMMUNICATIONS, INC.296 LONG DISTANCE SAVERS 430 U S WEST COMMUNICATIONS300 AT&T COMMUNICATIONS 432 AMERITECH AUDIOTEX SERVICES, INC.301 AMERITECH SERVICES 435 MCI302 AMERITECH SERVICES 436 AT&T COMMUNICATIONS303 PACIFIC TELESIS 438 MCI306 SOUTHERN NEW ENGLAND TELEPHONE (SNET) 440 AMERICAN INFORMATION NETWORK / DATA DEVICE313 COLONIAL COMMUNICATIONS 441 AMERITECH AUDIOTEX SERVICES, INC.314 COLONIAL COMMUNICATIONS 443 MCI321 TELEMATIONS INTERNATIONAL / ONCOR COMMS. 444 FEDERAL TRANSTEL, INC.322 CABLE & WIRELESS, INC. 446 MCI324 WILTEL LONG DISTANCE SERVICES 447 PHOENIX COMMUNICATIONS GROUP326 LCI INTERNATIONAL 448 MCI327 EASTERN TEL LONG DISTANCE SERVICE, INC. 450 AMERITECH SERVICES328 AT&T COMMUNICATIONS 451 STENTOR CANADIAN NETWORK MANAGEMENT

93



CODE ASSIGNED TO CODE ASSIGNED TO452 IXC LONG DISTANCE 638 INTERNATIONAL TELEMEDIA ASSOCS., INC.(ITA)454 AT&T COMMUNICATIONS 639 PILGRIM TELEPHONE CO.456 TELEMATIONS INTERNATIONAL / ONCOR COMMS. 640 AMERITECH AUDIOTEX SERVICES, INC.463 SPRINT 641 U S ADVANTAGE LONG DISTANCE, INC.468 SPRINT 642 SPRINT469 WESTEL, INC. 643 STENTOR CANADIAN NETWORK MANAGEMENT474 MICROVOICE APPLICATIONS, INC. 644 BRIDGE WATER TELEPHONE CO.476 MCI 645 STENTOR CANADIAN NETWORK MANAGEMENT477 PAC-WEST TELECOMM dba AMERICALL 646 SPRINT478 ALASCOM 650 AT&T COMMUNICATIONS480 AT&T COMMUNICATIONS 653 BITTEL TELECOMMUNICATIONS CORPORATION483 GTE MIDWEST TELEPHONE OPERATIONS 654 TELEMATIONS INTERNATIONAL / ONCOR COMMS.484 MCI 655 COM SYSTEMS, INC.486 MCI 656 MCI487 INTEGRETEL, INC. 659 MCI489 INTERNATIONAL TELEMEDIA ASSOCS., INC.(ITA) 660 AT&T COMMUNICATIONS490 AT&T COMMUNICATIONS 662 WILTEL LONG DISTANCE SERVICES500 AT&T COMMUNICATIONS 663 DMM ENTERPRISE505 PACIFIC TELESIS 665 FRONTIER COMMUNICATIONS SERVICES, INC.508 UNITED TELEPHONE LONG DISTANCE 666 FEDERAL TRANSTEL, INC.519 INTERNATIONAL TELECOMMUNICATIONS CORP. 667 NETWORK OPERATOR SERVICES, INC.520 AT&T COMMUNICATIONS 669 MARATHON COMMUNICATIONS523 CABLE & WIRELESS, PLC. 670 STENTOR CANADIAN NETWORK MANAGEMENT525 MCI 673 FBN AMERICA, INC.526 MCI 674 FEDERAL TRANSTEL, INC.527 AT&T COMMUNICATIONS 676 WILTEL LONG DISTANCE SERVICES528 NETWORK TELEPHONE SERVICES, INC. 677 STENTOR CANADIAN NETWORK MANAGEMENT533 LDDS WORLDCOM 678 MCI535 SPRINT 679 LDDS WORLDCOM537 FEDERAL TRANSTEL, INC. 680 AT&T COMMUNICATIONS538 INTERNATIONAL TELEMEDIA ASSOCS., INC.(ITA) 683 LDDS WORLDCOM540 FRONTIER COMMUNICATIONS SERVICES, INC. 684 NEW TIMES, INC.543 FRONTIER COMMUNICATIONS SERVICES, INC. 686 LCI INTERNATIONAL544 BITTEL TELECOMMUNICATIONS CORPORATION 690 STENTOR CANADIAN NETWORK MANAGEMENT545 GTE CALIFORNIA 691 TEXUSTEL, INC.546 WILTEL LONG DISTANCE SERVICES 695 TRESCOM INTERNATIONAL, CARIBBEAN DIVISION549 CALL AMERICA BUSINESS COMMUNICATIONS 699 PILGRIM TELEPHONE CO.550 FRONTIER COMMUNICATIONS SERVICES, INC. 700 SPRINT551 AMERITECH AUDIOTEX SERVICES, INC. 701 BELL ATLANTIC555 AT&T COMMUNICATIONS 707 NETWORK TELEPHONE SERVICES, INC.561 STENTOR CANADIAN NETWORK MANAGEMENT 710 TCC COMMUNICATIONS, INC.562 MCI 720 AT&T COMMUNICATIONS563 SPRINT / LONG DISTANCE USA 722 MCI564 LOMI LONG DISTANCE 724 FRONTIER COMMUNICATIONS SERVICES, INC.565 STENTOR CANADIAN NETWORK MANAGEMENT 725 MCI567 FRONTIER COMMUNICATIONS SERVICES, INC. 726 MCI568 SPRINT 727 GTE CALIFORNIA575 LDDS WORLDCOM 729 ALTERNATIVE LONG DISTANCE, INC.580 U S WEST COMMUNICATIONS 730 AT&T COMMUNICATIONS583 VARTEC NATIONAL, INC. 733 MCI588 INTERACTIVE TELECOM NETWORK, INC. 736 TELECOMMS. SVCS. OF TRINIDAD & TOBAGO, LTD.590 AT&T COMMUNICATIONS 737 AT&T COMMUNICATIONS595 STENTOR CANADIAN NETWORK MANAGEMENT 738 AT&T COMMUNICATIONS600 AT&T COMMUNICATIONS 739 LDDS WORLDCOM606 SOUTHERN NEW ENGLAND TELEPHONE (SNET) 740 AT&T COMMUNICATIONS610 ARVIG TELEPHONE CO. 741 TELEMATIONS INTERNATIONAL / ONCOR COMMS.620 AMERITECH SERVICES 742 PHONE AMERICA622 MCI 743 INTERNATIONAL TELEMEDIA ASSOCS., INC.(ITA)624 MCI 745 MCI626 LDDS WORLDCOM 746 LDDS WORLDCOM627 AMERITECH AUDIOTEX SERVICES, INC. 747 LDDS WORLDCOM628 AMERITECH SERVICES 748 VARTEC NATIONAL, INC.629 WESTEL, INC. 749 LDDS WORLDCOM630 STENTOR CANADIAN NETWORK MANAGEMENT 750 STENTOR CANADIAN NETWORK MANAGEMENT632 LDDS WORLDCOM 752 NORTH COUNTY COMMUNICATIONS, INC.633 MICROVOICE APPLICATIONS, INC. 753 FRONTIER COMMUNICATIONS SERVICES, INC.635 FRONTIER COMMUNICATIONS SERVICES, INC. 755 SOUTHWEST LONG DISTANCE NETWORK636 LDDS WORLDCOM 758 FRONTIER COMMUNICATIONS SERVICES, INC.637 U S ADVANTAGE LONG DISTANCE, INC. 763 BITTEL TELECOMMUNICATIONS CORPORATION

94



CODE ASSIGNED TO CODE ASSIGNED TO764 PHOENIX COMMUNICATIONS GROUP 903 AT&T COMMUNICATIONS765 FRONTIER COMMUNICATIONS SERVICES, INC. 909 AT&T COMMUNICATIONS766 MICROVOICE APPLICATIONS, INC. 919 INTERACTIVE TELECOM NETWORK, INC.770 NYNEX 920 AT&T COMMUNICATIONS771 DIGITAL NETWORK, INC. 924 AMERITECH SERVICES772 MCI 929 SPRINT773 AT&T COMMUNICATIONS 932 AT&T COMMUNICATIONS776 MCI 933 AT&T COMMUNICATIONS777 FEDERAL TRANSTEL, INC. 937 PRIMETEL COMMUNICATIONS, INC.778 AMERITECH SERVICES 938 FEDERAL TRANSTEL, INC.779 MCI 942 WESTEL, INC.780 AMERITECH SERVICES 943 WESTEL, INC.782 AMERICAN INFORMATION NETWORK / DATA DEVICE 945 MCI784 SUNTEL NETWORK, INC. 946 AMERITECH AUDIOTEX SERVICES, INC.785 COLONIAL COMMUNICATIONS 948 PAC-WEST TELECOMM dba AMERICALL786 AT&T COMMUNICATIONS 949 LDDS WORLDCOM787 MCI 950 MCI789 TELVUE CORP. 951 LDDS WORLDCOM792 STENTOR CANADIAN NETWORK MANAGEMENT 955 COLONIAL COMMUNICATIONS800 SPRINT 958 U S ADVANTAGE LONG DISTANCE, INC.801 BELL ATLANTIC 960 LDDS WORLDCOM808 NETWORK TELEPHONE SERVICES, INC. 963 TELEMATIONS INTERNATIONAL / ONCOR COMMS.820 AT&T COMMUNICATIONS 968 INTEGRETEL, INC.822 WILTEL LONG DISTANCE SERVICES 969 INTERACTIVE TELECOM NETWORK, INC.825 MCI 970 LDDS WORLDCOM826 WILTEL LONG DISTANCE SERVICES 971 LDDS WORLDCOM828 LDDS WORLDCOM 972 LDDS WORLDCOM830 STENTOR CANADIAN NETWORK MANAGEMENT 973 LDDS WORLDCOM832 MCI 974 FRONTIER COMMUNICATIONS SERVICES, INC.835 MCI 975 FRONTIER COMMUNICATIONS SERVICES, INC.839 WESTEL, INC. 976 AT&T COMMUNICATIONS840 AT&T COMMUNICATIONS 977 FRONTIER COMMUNICATIONS SERVICES, INC.843 FEDERAL TRANSTEL, INC. 978 FRONTIER COMMUNICATIONS SERVICES, INC.844 PACIFIC TELESIS 979 FRONTIER COMMUNICATIONS SERVICES, INC.847 SPRINT 980 INTERACTIVE TELECOM NETWORK, INC.848 GTE CALIFORNIA 986 AT&T COMMUNICATIONS850 AT&T COMMUNICATIONS 987 TELVUE CORP.851 DIGITEL 988 MCI852 LDDS WORLDCOM 989 NETWORK TELEPHONE SERVICES, INC.853 TELEFONICA LARGA DISTANCIA 990 MCI856 IOWA NETWORK SERVICES, INC. 991 AMERICAN LONG LINES857 WILTEL LONG DISTANCE SERVICES 992 LDDS WORLDCOM858 U. S. LINK LONG DISTANCE 993 MCI860 AT&T COMMUNICATIONS 994 LDDS WORLDCOM864 MCI 995 LDDS WORLDCOM866 ALASCOM 996 LDDS WORLDCOM867 VORTEL 997 WILTEL LONG DISTANCE SERVICES868 MCI 998 TELESCAN869 FEDERAL TRANSTEL, INC. 999 TELEMATIONS INTERNATIONAL / ONCOR COMMS.870 STENTOR CANADIAN NETWORK MANAGEMENT872 TELEMATIONS INTERNATIONAL / ONCOR COMMS.873 FEDERAL TRANSTEL, INC.874 AMERITECH AUDIOTEX SERVICES, INC.875 CONQUEST OPERATOR SERVICES CORP.877 BITTEL TELECOMMUNICATIONS CORPORATION878 USTEL879 PRIMETEL COMMUNICATIONS, INC.880 NYNEX883 COLONIAL COMMUNICATIONS884 AT&T COMMUNICATIONS885 TELVUE CORP.888 CABLE & WIRELESS, INC.890 AMERICAN INFORMATION NETWORK / DATA DEVICE896 AT&T COMMUNICATIONS897 PHOENIX COMMUNICATIONS GROUP898 WILTEL LONG DISTANCE SERVICES899 VITELCOM, INC.900 CABLE & WIRELESS, INC.901 BELL ATLANTIC

95



CODE ASSIGNED TO CODE ASSIGNED TO356 ACC LONG DISTANCE 738 AT&T COMMUNICATIONS264 ADVANTAGE NETWORK, INC. 740 AT&T COMMUNICATIONS478 ALASCOM 773 AT&T COMMUNICATIONS866 ALASCOM 786 AT&T COMMUNICATIONS729 ALTERNATIVE LONG DISTANCE, INC. 820 AT&T COMMUNICATIONS330 AMERICAN INFORMATION NETWORK / DATA DEVICE 840 AT&T COMMUNICATIONS440 AMERICAN INFORMATION NETWORK / DATA DEVICE 850 AT&T COMMUNICATIONS782 AMERICAN INFORMATION NETWORK / DATA DEVICE 860 AT&T COMMUNICATIONS890 AMERICAN INFORMATION NETWORK / DATA DEVICE 884 AT&T COMMUNICATIONS991 AMERICAN LONG LINES 896 AT&T COMMUNICATIONS338 AMERITECH AUDIOTEX SERVICES, INC. 903 AT&T COMMUNICATIONS340 AMERITECH AUDIOTEX SERVICES, INC. 909 AT&T COMMUNICATIONS367 AMERITECH AUDIOTEX SERVICES, INC. 920 AT&T COMMUNICATIONS432 AMERITECH AUDIOTEX SERVICES, INC. 932 AT&T COMMUNICATIONS441 AMERITECH AUDIOTEX SERVICES, INC. 933 AT&T COMMUNICATIONS551 AMERITECH AUDIOTEX SERVICES, INC. 976 AT&T COMMUNICATIONS627 AMERITECH AUDIOTEX SERVICES, INC. 986 AT&T COMMUNICATIONS640 AMERITECH AUDIOTEX SERVICES, INC. 272 BELL ATLANTIC874 AMERITECH AUDIOTEX SERVICES, INC. 335 BELL ATLANTIC946 AMERITECH AUDIOTEX SERVICES, INC. 701 BELL ATLANTIC235 AMERITECH SERVICES 801 BELL ATLANTIC248 AMERITECH SERVICES 901 BELL ATLANTIC280 AMERITECH SERVICES 334 BERMUDA TELEPHONE CO. (BERTELCO)301 AMERITECH SERVICES 421 BITTEL TELECOMMUNICATIONS CORPORATION302 AMERITECH SERVICES 544 BITTEL TELECOMMUNICATIONS CORPORATION428 AMERITECH SERVICES 653 BITTEL TELECOMMUNICATIONS CORPORATION450 AMERITECH SERVICES 763 BITTEL TELECOMMUNICATIONS CORPORATION620 AMERITECH SERVICES 877 BITTEL TELECOMMUNICATIONS CORPORATION628 AMERITECH SERVICES 644 BRIDGE WATER TELEPHONE CO.778 AMERITECH SERVICES 284 BTI TELECOMMUNICATIONS SERVICES780 AMERITECH SERVICES 221 CABLE & WIRELESS, INC.924 AMERITECH SERVICES 223 CABLE & WIRELESS, INC.245 AMERIVISION COMMUNICATIONS, INC. 233 CABLE & WIRELESS, INC.610 ARVIG TELEPHONE CO. 322 CABLE & WIRELESS, INC.200 AT&T COMMUNICATIONS 888 CABLE & WIRELESS, INC.210 AT&T COMMUNICATIONS 900 CABLE & WIRELESS, INC.220 AT&T COMMUNICATIONS 523 CABLE & WIRELESS, PLC.225 AT&T COMMUNICATIONS 549 CALL AMERICA BUSINESS COMMUNICATIONS250 AT&T COMMUNICATIONS 425 CAPITAL NETWORK SYSTEM, INC.260 AT&T COMMUNICATIONS 313 COLONIAL COMMUNICATIONS268 AT&T COMMUNICATIONS 314 COLONIAL COMMUNICATIONS288 AT&T COMMUNICATIONS 785 COLONIAL COMMUNICATIONS300 AT&T COMMUNICATIONS 883 COLONIAL COMMUNICATIONS328 AT&T COMMUNICATIONS 955 COLONIAL COMMUNICATIONS339 AT&T COMMUNICATIONS 655 COM SYSTEMS, INC.342 AT&T COMMUNICATIONS 875 CONQUEST OPERATOR SERVICES CORP.344 AT&T COMMUNICATIONS 374 CONSOLIDATED COMMUNICATIONS350 AT&T COMMUNICATIONS 366 CONSUMER DATA SOLUTIONS (CDS)370 AT&T COMMUNICATIONS 238 DELTA COMMUNICATIONS, INC.400 AT&T COMMUNICATIONS 239 DELTA COMMUNICATIONS, INC.407 AT&T COMMUNICATIONS 771 DIGITAL NETWORK, INC.410 AT&T COMMUNICATIONS 851 DIGITEL420 AT&T COMMUNICATIONS 663 DMM ENTERPRISE436 AT&T COMMUNICATIONS 327 EASTERN TEL LONG DISTANCE SERVICE, INC.454 AT&T COMMUNICATIONS 673 FBN AMERICA, INC.480 AT&T COMMUNICATIONS 444 FEDERAL TRANSTEL, INC.490 AT&T COMMUNICATIONS 537 FEDERAL TRANSTEL, INC.500 AT&T COMMUNICATIONS 666 FEDERAL TRANSTEL, INC.520 AT&T COMMUNICATIONS 674 FEDERAL TRANSTEL, INC.527 AT&T COMMUNICATIONS 777 FEDERAL TRANSTEL, INC.555 AT&T COMMUNICATIONS 843 FEDERAL TRANSTEL, INC.590 AT&T COMMUNICATIONS 869 FEDERAL TRANSTEL, INC.600 AT&T COMMUNICATIONS 873 FEDERAL TRANSTEL, INC.650 AT&T COMMUNICATIONS 938 FEDERAL TRANSTEL, INC.660 AT&T COMMUNICATIONS 224 FRONTIER COMMUNICATIONS SERVICES, INC.680 AT&T COMMUNICATIONS 227 FRONTIER COMMUNICATIONS SERVICES, INC.720 AT&T COMMUNICATIONS 236 FRONTIER COMMUNICATIONS SERVICES, INC.730 AT&T COMMUNICATIONS 345 FRONTIER COMMUNICATIONS SERVICES, INC.737 AT&T COMMUNICATIONS 395 FRONTIER COMMUNICATIONS SERVICES, INC.

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CODE ASSIGNED TO CODE ASSIGNED TO422 FRONTIER COMMUNICATIONS SERVICES, INC. 992 LDDS WORLDCOM540 FRONTIER COMMUNICATIONS SERVICES, INC. 994 LDDS WORLDCOM543 FRONTIER COMMUNICATIONS SERVICES, INC. 995 LDDS WORLDCOM550 FRONTIER COMMUNICATIONS SERVICES, INC. 996 LDDS WORLDCOM567 FRONTIER COMMUNICATIONS SERVICES, INC. 564 LOMI LONG DISTANCE635 FRONTIER COMMUNICATIONS SERVICES, INC. 259 LONG DISTANCE SAVERS665 FRONTIER COMMUNICATIONS SERVICES, INC. 296 LONG DISTANCE SAVERS724 FRONTIER COMMUNICATIONS SERVICES, INC. 222 MARATHON COMMUNICATIONS753 FRONTIER COMMUNICATIONS SERVICES, INC. 669 MARATHON COMMUNICATIONS758 FRONTIER COMMUNICATIONS SERVICES, INC. 226 MCI765 FRONTIER COMMUNICATIONS SERVICES, INC. 255 MCI974 FRONTIER COMMUNICATIONS SERVICES, INC. 263 MCI975 FRONTIER COMMUNICATIONS SERVICES, INC. 265 MCI977 FRONTIER COMMUNICATIONS SERVICES, INC. 267 MCI978 FRONTIER COMMUNICATIONS SERVICES, INC. 285 MCI979 FRONTIER COMMUNICATIONS SERVICES, INC. 287 MCI545 GTE CALIFORNIA 289 MCI727 GTE CALIFORNIA 329 MCI848 GTE CALIFORNIA 336 MCI401 GTE HAWAIIAN TELEPHONE COMPANY 347 MCI483 GTE MIDWEST TELEPHONE OPERATIONS 378 MCI487 INTEGRETEL, INC. 388 MCI968 INTEGRETEL, INC. 435 MCI277 INTERACTIVE TELECOM NETWORK, INC. 438 MCI588 INTERACTIVE TELECOM NETWORK, INC. 443 MCI919 INTERACTIVE TELECOM NETWORK, INC. 446 MCI969 INTERACTIVE TELECOM NETWORK, INC. 448 MCI980 INTERACTIVE TELECOM NETWORK, INC. 476 MCI519 INTERNATIONAL TELECOMMUNICATIONS CORP. 484 MCI269 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 486 MCI489 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 525 MCI538 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 526 MCI638 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 562 MCI743 INTERNATIONAL TELEMEDIA ASSOCIATES, INC.(ITA) 622 MCI856 IOWA NETWORK SERVICES, INC. 624 MCI452 IXC LONG DISTANCE 656 MCI282 LCI INTERNATIONAL 659 MCI326 LCI INTERNATIONAL 678 MCI361 LCI INTERNATIONAL 722 MCI686 LCI INTERNATIONAL 725 MCI229 LDDS WORLDCOM 726 MCI266 LDDS WORLDCOM 733 MCI275 LDDS WORLDCOM 745 MCI331 LDDS WORLDCOM 772 MCI355 LDDS WORLDCOM 776 MCI357 LDDS WORLDCOM 779 MCI373 LDDS WORLDCOM 787 MCI412 LDDS WORLDCOM 825 MCI424 LDDS WORLDCOM 832 MCI533 LDDS WORLDCOM 835 MCI575 LDDS WORLDCOM 864 MCI626 LDDS WORLDCOM 868 MCI632 LDDS WORLDCOM 945 MCI636 LDDS WORLDCOM 950 MCI679 LDDS WORLDCOM 988 MCI683 LDDS WORLDCOM 990 MCI739 LDDS WORLDCOM 993 MCI746 LDDS WORLDCOM 474 MICROVOICE APPLICATIONS, INC.747 LDDS WORLDCOM 633 MICROVOICE APPLICATIONS, INC.749 LDDS WORLDCOM 766 MICROVOICE APPLICATIONS, INC.828 LDDS WORLDCOM 349 NETWORK LONG DISTANCE852 LDDS WORLDCOM 667 NETWORK OPERATOR SERVICES, INC.949 LDDS WORLDCOM 404 NETWORK TELEPHONE SERVICES, INC.951 LDDS WORLDCOM 528 NETWORK TELEPHONE SERVICES, INC.960 LDDS WORLDCOM 707 NETWORK TELEPHONE SERVICES, INC.970 LDDS WORLDCOM 808 NETWORK TELEPHONE SERVICES, INC.971 LDDS WORLDCOM 989 NETWORK TELEPHONE SERVICES, INC.972 LDDS WORLDCOM 684 NEW TIMES, INC.973 LDDS WORLDCOM 429 NORTH COUNTY COMMUNICATIONS, INC.

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CODE ASSIGNED TO CODE ASSIGNED TO752 NORTH COUNTY COMMUNICATIONS, INC. 853 TELEFONICA LARGA DISTANCIA337 NORTHERN ARIZONA LONG DISTANCE 234 TELEMATIONS INTERNATIONAL / ONCOR COMMS.770 NYNEX 258 TELEMATIONS INTERNATIONAL / ONCOR COMMS.880 NYNEX 321 TELEMATIONS INTERNATIONAL / ONCOR COMMS.303 PACIFIC TELESIS 369 TELEMATIONS INTERNATIONAL / ONCOR COMMS.505 PACIFIC TELESIS 456 TELEMATIONS INTERNATIONAL / ONCOR COMMS.844 PACIFIC TELESIS 654 TELEMATIONS INTERNATIONAL / ONCOR COMMS.399 PAC-WEST TELECOMM dba AMERICALL 741 TELEMATIONS INTERNATIONAL / ONCOR COMMS.477 PAC-WEST TELECOMM dba AMERICALL 872 TELEMATIONS INTERNATIONAL / ONCOR COMMS.948 PAC-WEST TELECOMM dba AMERICALL 963 TELEMATIONS INTERNATIONAL / ONCOR COMMS.247 PHOENIX COMMUNICATIONS GROUP 999 TELEMATIONS INTERNATIONAL / ONCOR COMMS.278 PHOENIX COMMUNICATIONS GROUP 998 TELESCAN447 PHOENIX COMMUNICATIONS GROUP 789 TELVUE CORP.764 PHOENIX COMMUNICATIONS GROUP 885 TELVUE CORP.897 PHOENIX COMMUNICATIONS GROUP 987 TELVUE CORP.742 PHONE AMERICA 691 TEXUSTEL, INC.332 PILGRIM TELEPHONE CO. 254 TOTAL-TEL USA426 PILGRIM TELEPHONE CO. 695 TRESCOM INTERNATIONAL, CARIBBEAN DIVISION639 PILGRIM TELEPHONE CO. 637 U S ADVANTAGE LONG DISTANCE, INC.699 PILGRIM TELEPHONE CO. 641 U S ADVANTAGE LONG DISTANCE, INC.244 PRIMETEL COMMUNICATIONS, INC. 958 U S ADVANTAGE LONG DISTANCE, INC.286 PRIMETEL COMMUNICATIONS, INC. 240 U S WEST COMMUNICATIONS360 PRIMETEL COMMUNICATIONS, INC. 333 U S WEST COMMUNICATIONS879 PRIMETEL COMMUNICATIONS, INC. 341 U S WEST COMMUNICATIONS937 PRIMETEL COMMUNICATIONS, INC. 430 U S WEST COMMUNICATIONS382 SCHERERS COMMUNICATIONS GROUP, INC. 580 U S WEST COMMUNICATIONS414 SCHERERS COMMUNICATIONS GROUP, INC. 408 UNITED TELEPHONE LONG DISTANCE306 SOUTHERN NEW ENGLAND TELEPHONE (SNET) 508 UNITED TELEPHONE LONG DISTANCE606 SOUTHERN NEW ENGLAND TELEPHONE (SNET) 878 USTEL755 SOUTHWEST LONG DISTANCE NETWORK 252 U. S. LINK LONG DISTANCE230 SPRINT 858 U. S. LINK LONG DISTANCE246 SPRINT 583 VARTEC NATIONAL, INC.262 SPRINT 748 VARTEC NATIONAL, INC.346 SPRINT 899 VITELCOM, INC.386 SPRINT 867 VORTEL463 SPRINT 469 WESTEL, INC.468 SPRINT 629 WESTEL, INC.535 SPRINT 839 WESTEL, INC.568 SPRINT 942 WESTEL, INC.642 SPRINT 943 WESTEL, INC.646 SPRINT 324 WILTEL LONG DISTANCE SERVICES700 SPRINT 546 WILTEL LONG DISTANCE SERVICES800 SPRINT 662 WILTEL LONG DISTANCE SERVICES847 SPRINT 676 WILTEL LONG DISTANCE SERVICES929 SPRINT 822 WILTEL LONG DISTANCE SERVICES365 SPRINT / LONG DISTANCE USA 826 WILTEL LONG DISTANCE SERVICES563 SPRINT / LONG DISTANCE USA 857 WILTEL LONG DISTANCE SERVICES377 SPRINT / SPRINTNET 898 WILTEL LONG DISTANCE SERVICES273 STENTOR CANADIAN NETWORK MANAGEMENT 997 WILTEL LONG DISTANCE SERVICES451 STENTOR CANADIAN NETWORK MANAGEMENT561 STENTOR CANADIAN NETWORK MANAGEMENT565 STENTOR CANADIAN NETWORK MANAGEMENT595 STENTOR CANADIAN NETWORK MANAGEMENT630 STENTOR CANADIAN NETWORK MANAGEMENT643 STENTOR CANADIAN NETWORK MANAGEMENT645 STENTOR CANADIAN NETWORK MANAGEMENT670 STENTOR CANADIAN NETWORK MANAGEMENT677 STENTOR CANADIAN NETWORK MANAGEMENT690 STENTOR CANADIAN NETWORK MANAGEMENT750 STENTOR CANADIAN NETWORK MANAGEMENT792 STENTOR CANADIAN NETWORK MANAGEMENT830 STENTOR CANADIAN NETWORK MANAGEMENT870 STENTOR CANADIAN NETWORK MANAGEMENT784 SUNTEL NETWORK, INC.232 SUPERIOR TELECOM242 SUPERIOR TELECOM710 TCC COMMUNICATIONS, INC.231 TELECOM OPTIONS PLUS, INC.736 TELECOMMS. SVCS. OF TRINIDAD & TOBAGO, LTD.

98

Customer ResponsePublication: Long Distance Carrier Code Assignments

First Quarter 1997

You can help us provide the best possible information to the public by completingthis form and returning it to the Industry Analysis Division of the FCC's CommonCarrier Bureau.

1. Please check the category that best describes you:

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5. May we contact you to discuss possible improvements?Name:Telephone #:

To discuss the information in this report, contact:Industry Analysis Division at

202-418-0940

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industry analysis division common carrier bureau … · long distance carrier code assignments...

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