Zayo Capabilities Overview

Prepared By: Zayo Marketing Team

2 | Proprietary and Confidential

Dan Caruso Co-Founder, Chairman & CEO MFS, Level 3, ICG Ken desGarennes CFO The Gores Group, WireOne Stephanie Copeland President, zColo Qwest, Cable & Wireless, MFS Matt Erickson President, Physical Infrastructure PriceWaterhouse, Level 3, ICG

Chris Morley President, Cloud & Connectivity Fanch Comm., One Comm. Scott Beer General Counsel Level 3, ICG David Howson President, International Level 3 Sandi Mays SVP IT, Tranzact & Billing MFS, Level 3, ICG

Scott Reardon Corporate Dev. & IR Level 3, ICG Glenn Russo EVP, Sales Exxon Mobil, Level 3 Rachael Donaldson VP, People.Culture.Brand Made, Karsh Hagan

Leadership Team

3 | Proprietary and Confidential

US Carrier

Acquisition History

2009 2010 2011 2012 2013 2014 2008 2007

CFS

Regional Markets

2015

4 | Proprietary and Confidential

!  On February 20, 2015, Zayo completed the acquisition of Latisys, a leading data center and infrastructure as a service (IaaS) provider

!  Latisys operates six data centers in Ashburn, Chicago, Denver, and Orange County; all already on the Zayo network

!  Combined assets include 43 data center facilities and a fiber-based network that spans 308 markets

!  Zayo continues to support and expand the full suite of Latisys solutions, including its IaaS offerings, and bring Latisys facilities and product capabilities to Zayo customers and markets

Zayo Acquires Latisys

5 | Proprietary and Confidential

43 data center and cloud facilities with 503,000 finished & sellable sq ft (including Latisys)

6,600,000 fiber miles, with 16,700 on-net buildings

5

60 Hudson, NYC

The Infomart, Dallas

12201 Tukwila, Seattle

7185 Pollock, Las Vegas

7218 McNeil, Austin

111 8th, NYC 19/21 Rue Poissonnière, Paris

36 NE 2nd St, Miami

1808 B&C Swift, Oak Brook

17222 & 17400 Von Karman, Irvine

165 Halsey, Newark

1100 White St, Atlanta

zColo Data Center Map

21631 & 21635 Red Rum, Ashburn

800 E Business Center, Chicago

3110 N Central, Phoenix

391 & 393 Inverness, Englewood

6 | Proprietary and Confidential

Data Center Connectivity-focused space & power

Dark Fiber Leased fiber in metro and intercity

Mobile Infrastructure Tower backhaul and small cells

Full Suite of Connectivity + Data Center Solutions

IaaS Private Cloud, Public Cloud & Managed IT Services

Wavelengths Up to 100G on long haul and metro DWDM

Ethernet E-Line, E-LAN, E-PDN

IP Services Dedicated Internet Access & IP Transit

SONET SONET and TDM-based transport

Media Services Dedicated video over owned fiber

Latisys portfolio complements Zayo’s offering Zayo Solution Portfolio (Including Latisys)

Zayo Physical Infrastructure Zayo Cloud & Connectivity

7 | Proprietary and Confidential

Oct. 17, 2014 - Zayo Joins NYSE

!  IPO on October 17, 2014

!  Joined NYSE as ZAYO

!  $1.2B Revenue

!  $682M EBITDA

8 | Proprietary and Confidential

Summer 2014 - Zayo Acquires Neo Telecoms & Geo Networks

Paris

London

Europe Network Map

LONDON

PARIS

9 | Proprietary and Confidential

Providing bandwidth infrastructure products… … to large consumers of bandwidth

Bandwidth Infrastructure Focus

Telecom Value Chain

Physical Infrastructure + Lit Services

Businesses, Consumers,

Public Sector

Voice, Cloud Services, Wireless, Video, CDN,

Hosting, Disaster Recovery

Public ROW, Private Land Owners,

Wireless Spectrum

Bandwidth Infrastructure

End Users

Enablers of Infrastructure

Communication Services Providers

10 | Proprietary and Confidential

Organic Network Development

2,256 2,418 3,103

4,041 4,228 4,393 4,542 5,191 5,431

6,055

10,258 11,104

11,740 12,222 13,242

14,196 14,490 15,027

16,151

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

Mar-10 Jun-10 Sep-10 Dec-10 Mar-11 Jun-11 Sep-11 Dec-11 Mar-12 Jun-12 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14

On-

Net

Bui

ldin

gs Other

Carrier Hotel / Data Center

Enterprise

PoP

20,172 20,409 21,584 23,042 23,351 24,251 24,991

45,423 45,673 46,504

63,711

72,893 74,325 75,839 75,954 76,778 77,113 80,860 81,561

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

Mar-10 Jun-10 Sep-10 Dec-10 Mar-11 Jun-11 Sep-11 Dec-11 Mar-12 Jun-12 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14

Rou

te M

iles

11 | Proprietary and Confidential

Global Network Map

12 | Proprietary and Confidential

European Network

13 | Proprietary and Confidential

New York/New Jersey

Network Density & Depth are Barriers to Entry

Northern California United Kingdom

5 Miles London Metro

3 Miles New York Metro San Francisco Metro 3 Miles

14 | Proprietary and Confidential

Colorado – Front Range

Network Density & Depth are Barriers to Entry

Indiana – Indianapolis Georgia – Atlanta

5 Miles Atlanta Metro

3 Miles Denver Metro Indianapolis Metro 3 Miles

15 | Proprietary and Confidential

Long Haul Dark Fiber

NOTE: Zayo has fiber IRUs from 3rd parties on other routes (not shown in this presentation); route availability/pricing ICB

16 | Proprietary and Confidential

Zayo Group is an international provider of Bandwidth Infrastructure & carrier-neutral colocation and interconnection

About Zayo

Dark Fiber: Virtually unlimited bandwidth with a single pair of fibers on new construction and existing Zayo fiber infrastructure

Wavelengths: 1G, 2.5G, 10Gx or 100Gx

Ethernet: Protected or unprotected, 100M–10G, reserved bandwidth availability, multiple interface options, MEF-certified

IP Services: IP Transit, Dedicated Internet Access, IP-VPN

SONET: SONET and TDM-based transport ranging from DS3–OC192 in point-to-point, hub/tail or dedicated ring configurations

Colocation: Resilient environments with carrier-neutral access to domestic and international networks

Other Services: Mobile Infrastructure, Zayo Professional Services

17 | Proprietary and Confidential

Zayo x Latisys IaaS Portfolio

Private and Public Cloud !  Private Cloud: dedicated resources, multi-site replication,

managed virtualization, VMware or Hyper-V hypervisors

!  Public Cloud: self-service, utility billing, VM templates, rapid scale, multi-tenant platform

Managed IT Services !  Hosting: bare metal or dedicated managed servers

!  Performance: local/global load balancing, IT monitoring/reporting, database management

!  Security: firewall/anti-virus, SIEM, patch management

!  Storage: high-performance solutions, data back-up, SAN

!  Disaster Recovery: SAN replication, Global Load Balancing

18 | Proprietary and Confidential

Why Customers Choose Zayo

Technical Expertise

!  Manage critical infrastructure for carriers and large enterprises

!  Focused on providing bandwidth and streamlined product mix

!  High degree of expertise in custom network designs and large-scale deployments

!  Deep metro and intercity assets & dedicated to network expansion

!  Dense fiber optic network supporting services engineered for scalability, reliability & security

!  Transparent about network assets, making it simpler to partner with Zayo on joint projects

!  Full financial disclosure, supporting the strength of long-term partnerships, NYSE ticker: ZAYO

!  Proven expertise with network expansion, including construction of market-wide projects

19 | Proprietary and Confidential

A simple bandwidth shopping experience for pricing and ordering anytime, anywhere

Tranzact Platform

20 | Proprietary and Confidential

What Can Tranzact Do?

Thank You We welcome your questions and feedback.

Visit Zayo.com to explore our Interactive Network Map and download KMZs.

22 | Proprietary and Confidential

Appendix

23 | Proprietary and Confidential

New York/New Jersey

Additional Metro Maps

Northern California United Kingdom

5 Miles London Metro

3 Miles New York Metro San Francisco Metro 3 Miles

24 | Proprietary and Confidential

Colorado – Front Range

Additional Metro Maps

Indiana – Indianapolis Georgia – Atlanta

5 Miles Atlanta Metro

3 Miles Denver Metro Indianapolis Metro 3 Miles

25 | Proprietary and Confidential

Washington – Seattle

3 Miles Seattle Metro

Texas – Dallas

3 Miles Dallas Metro

Washington D.C.

3 Miles D.C. Metro

Additional Metro Maps

26 | Proprietary and Confidential

North Carolina - Charlotte Tennessee - Memphis

3 Miles Memphis Metro Charlotte Metro 3 Miles

Additional Metro Maps

27 | Proprietary and Confidential

Virtually unlimited bandwidth with a single pair of fibers on a combination of custom new and existing fiber infrastructure

Dark Fiber

Overview !  Core building block upon which other bandwidth infrastructure is built

!  Virtually unlimited capacity, A-Z custom routing and protocol versatility

!  Cost-effective scaling and ability to contract for long period of time to drive low monthly costs

Application !  Build highly scalable WAN between locations, such as company

headquarters and data centers

!  Options for Build-Operate-Transfer and Build-Operate-Dedicate

Bandwidth Capacity !  Virtually unlimited bandwidth on single fiber pair

Protection !  Dedicated fiber network with diverse fiber routes and laterals, providing full

control and strong security and reliability

28 | Proprietary and Confidential

Speeds of 1G, 2.5G, 10G, or 100G in single or multiple waves

Wavelengths

Overview

!  Dedicated optical capacity on national metro and intercity network

!  Fastest connection speeds in telecom

!  Low-latency intercity and metro routes between major cities and data centers

!  Standard pricing for on-net locations in fiber-rich metro markets

Application

!  Deliver high-bandwidth w/o capital intensiveness of Dark Fiber

Protection

!  Single or dual path

!  Defined or undefined routes

29 | Proprietary and Confidential

Zayo 100G Network

30 | Proprietary and Confidential

Protected/unprotected with 10M-10G speeds, reserved bandwidth and multiple interface options

Ethernet

Overview

!  Dedication, end-to-end QoS, scalable bandwidth options

!  Lower equipment costs, improved familiarity for IT staff

Application: E-Line, E-LAN, PDN

!  E-Line: Point-to-Point/Point-to-Multi-Point

!  E-LAN: Multi-Point to Multi-Point

!  PDN: Fully Dedicated

Bandwidth Capacity

!  100M-10G

Protection

!  Protected and unprotected

!  Defined or undefined routes

31 | Proprietary and Confidential

IP Services: Intercity and Metro Network

Dedicated Internet Access Map

!  Robust, Tier-1 provider and direct customer peering infrastructure !  High capacity, globally interconnected network with single AS !  End-to-end connectivity on Zayo’s global network !  Scalable GigE and 10Gig interface option !  10M – 10 G

32 | Proprietary and Confidential

High-speed access to internet, intranet and extranet sites

SONET / TDM

Overview

!  Dedicated optical capacity on national metro & intercity network

!  Bandwidth from DS-1 to OC-192

!  15,794 locations on-net, including 650 PoPs and 756 data centers

!  Standard pricing for on-net locations in fiber-rich metro markets

!  Point-to-point, hub-and-spoke, and dedicated ring configurations

Reliability

!  Dedicated, protected architecture

!  Sub-50 ms failover

!  99.999% guaranteed by SLA

!  Choice to specify A-Z path to support carrier diversity

33 | Proprietary and Confidential

Carrier-neutral colocation and interconnection at 34 US and 9 France locations

Colocation & Interconnection

Overview

!  473,399 finished billable sq. ft. of fully-conditioned colocation and interconnection space in major U.S. carrier hotels

!  Cost-effective in-suite cross connects to >250 carriers in zColo’s footprint, including 86+ in NY/NJ

!  Connectivity to Peering, Ethernet, Video & Financial Exchanges

!  Extensive fiber riser systems provide deep reach in key carrier hotels to other Carrier POPs an

!  Transport solutions available in every colocation facility

34 | Proprietary and Confidential

zColo Network Map

35 | Proprietary and Confidential

Small Cell and DAS solutions to strategically enhance the data capacity of wireless service providers

Small Cell / DAS

Overview: !  Implementation of small cell wireless technology,

and backhaul infrastructure

!  Utilizing Zayo’s global fiber footprint to provide cost-effective customized Small Cell solutions

!  Expertise in route design, site acquisition, zoning, and coordinating local agency

Application: !  Capacity offload or coverage infill for active macro networks

36 | Proprietary and Confidential

Turn-Key Small Cell Solution

Equipment Installation

& Power

Fiber Backhaul

Site Acquisition

Zoning & Permitting

Remote Hands & Site Management

Flexible Deal

Structures

Dense Fiber Footprint

End-to-End Small Cell Solutions

Construction Capabilities

Real Estate, Utility and Municipality Relationships for Site Acquisition

Project Management

Expertise

37 | Proprietary and Confidential

Key Financial Buildings Connected to Zayo’s Network

NJ/NYC Fiber Infrastructure

600 Commerce Blvd., Carlstadt

745 Route 3, Rutherford

545 Washington Blvd., Jersey City

390 Greenwich St., New York

1300 Federal Blvd., Carteret

1700 Macarthur Blvd., Mahwah

100 Delawanna Ave., Clifton

800 Secaucus Rd., Secaucus

755 Secaucus Rd., Secaucus

275 Hartz Way, Secaucus

300 Boulevard E., Weehawken

1919 Park Ave., Weehawken

1400 Federal Blvd., Carteret

3 Corporate Plaza Pkwy., Piscataway

165 Halsey St., Newark

111 8th Ave., New York

32 Avenue of the Americas, New York

38 | Proprietary and Confidential

Other providers have fiber. What makes Zayo different?

The Zayo Difference