Zayo to Host FY4Q2013 Earnings Conference Call on September 23, 2013

BOULDER, Colo. September 16, 2013 – Zayo Group, LLC (“Zayo” or the “Company”) invites you to listen to its earnings call for the fiscal fourth quarter ended June 30, 2013 on Monday, September 23rd, 2013.

When: Monday, September 23rd, 2013 @ 9:00 a.m. MT/11:00 a.m. ET

Click this link to register and view the Webcast:https://cc.readytalk.com/r/vvx1f6qlppaz&eom

Dial-in information for the audio portion of the Webcast: U.S. & Canada Toll-Free: (800) 736-4610

The Company will discuss a number of financial and operational metrics that are included in its earnings supplement presentation. This presentation will be available via the webcast. Both the earnings supplement and playback recording will be available after the call through Zayo’s website at: http://www.zayo.com/financial-earnings-release.

If you have any questions, please contact Zayo Investor Relations at  800.741.5804 or IR@zayo.com.

About Zayo Group

Based in Boulder, Colo., privately owned Zayo Group (www.zayo.com) is an international provider of fiber-based Bandwidth Infrastructure services and carrier-neutral colocation and interconnection services. Zayo serves wireline and wireless carriers, data centers, Internet content and services companies, high bandwidth enterprises, and federal, state and local government agencies. Zayo provides these services over metro, national, international and fiber-to-the-tower networks. With its acquisitions of USCarrier, FiberGate and AboveNet, Zayo’s network includes 74,300 route miles, serving 45 states and Washington, D.C. Its network serves approximately 11,740 on-net buildings, including 571 data centers, 563 carrier PoPs, and 3,045 cell towers. Zayo’s colocation assets include 141,000 billable square feet of interconnect-focused colocation space.

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