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Zayo Announces Extension of Exchange Offer

Boulder, Colo. – November 19, 2015 – Zayo Group, LLC and Zayo Capital, Inc. (collectively “Zayo”) announced today that they had extended their offer to exchange up to $1,780,000,000 aggregate principal amount of their 6.00% Senior Notes due 2023 and 6.375% Senior Notes due 2025 (collectively, the “Exchange Notes”) for an equal amount of their outstanding, unregistered 6.00% Senior Notes due 2023 (the “2023 Outstanding Notes”) and 6.375% Senior Notes due 2025 (the “2025 Outstanding Notes,” and together with the 2023 Outstanding Notes, the “Outstanding Notes”), respectively, until 5:00 p.m. New York City time on November 30, 2015. The offer was previously scheduled to expire at 5:00 p.m. New York City time on November 18, 2015. As of 5:00 p.m. New York City time on Wednesday, November 18, 2015, holders of $1,423,789,000 aggregate principal amount of the 2023 Outstanding Notes (constituting approximately 99.57% of the principal amount of the 2023 Outstanding Notes) and holders of $279,970,000 aggregate principal amount of the 2025 Outstanding Notes (constituting approximately 79.99% of the principal amount of the 2025 Outstanding Notes) subject to the offer have delivered valid tenders pursuant to the offer. Except as set forth herein, the terms and conditions of the offer remain unchanged. Zayo may further extend the expiration date of the offer in its sole discretion. The offer is being made pursuant to a prospectus dated October 20, 2015. Copies of the exchange offer prospectus and related transmittal materials governing the exchange offer are available from the exchange agent for the offer, The Bank of New York Mellon Trust Company, N.A., at:

The Bank of New York Mellon Trust Company, N.A., as Exchange Agent c/o The Bank of New York Mellon Corporation Corporate Trust Operations—Reorganization Unit 111 Sanders Creek Parkway East Syracuse, NY 13057 Attention: Allissa Overton Telephone: (315) 414-3317

This press release does not constitute an offer to sell or solicitation of an offer to buy the Exchange Notes. About Zayo Group Zayo Group Holdings Inc. (NYSE: ZAYO) provides bandwidth infrastructure services, including fiber and bandwidth connectivity, colocation and cloud services to the world’s leading businesses. Customers include wireless and wireline carriers, media and content companies and finance, healthcare and other large enterprises. Zayo’s 87,000-mile network in the U.S. and Europe includes extensive metro connectivity to thousands of buildings and data centers. In addition to high-capacity dark fiber, wavelength, Ethernet and other connectivity solutions, Zayo offers colocation and cloud services in its carrier-neutral data centers. Zayo provides clients with flexible, customized solutions and self-service through Tranzact, an innovative online platform for managing and purchasing bandwidth and services. For more information, visit zayo.com.