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Zayo Announces New Long Haul Fiber Route

Press Release

Route to connect Columbus to Pittsburgh

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) today announced plans for a new long haul fiber network between Columbus, Ohio and Pittsburgh, Pennsylvania. Construction on the success-based route will start this quarter and is anticipated to be completed in 2020.

The build will span more than 200 route miles from Columbus to Wheeling, West Virginia, Washington, Pennsylvania and Pittsburgh. Customers can benefit from reduced latency on the new route and connect to Cincinnati, Indianapolis and Chicago via Zayo’s existing fiber network.

Columbus is home to a strong and diverse base of businesses that span education, technology, government, research, fashion, retail, insurance and healthcare. With its central location and proximity to major population centers, Columbus and New Albany, Ohio have become increasingly important data center hubs.

Over the past two decades, Pittsburgh’s economy has diversified significantly. Its growing economy is fueled by manufacturing, healthcare, higher education, tourism, financial markets, banking and technology industries.

“The build is driven by a customer’s need for a physically diverse route from existing providers connecting these two strategic markets,” said Steve Orlando, senior vice president of Central Region at Zayo. “The expansion will provide a superior option for reliable, high-capacity fiber connecting data centers and contact centers in important population centers.”

Zayo continues to grow its footprint in the eastern U.S. Last year, Zayo announced a new route from Columbus to Ashburn that is expected to provide the lowest latency between the two cities. In June, Zayo also announced the addition of nearly 300 new route miles of fiber in the Youngstown, Ohio area.

For more information on Zayo, please visit zayo.com.

About Zayo Group

Zayo Group Holdings, Inc. (NYSE: ZAYO) provides mission-critical bandwidth to the world’s most impactful companies, fueling the innovations that are transforming our society. Zayo’s 133,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo’s communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, dedicated internet access and data center colocation services. Zayo owns and operates a Tier 1 IP backbone and 44 carrier-neutral data centers. Through its CloudLink service, Zayo provides low-latency private connectivity that attaches enterprises to their public cloud environments. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. For more information, visit zayo.com.

Forward Looking Statements

This press release contains a number of forward-looking statements. Words, and variations of words such as “believe,” “expect,” “plan,” “continue,” “will,” “should,” and similar expressions are intended to identify our forward-looking statements. No assurance can be given that future results expressed or implied by the forward-looking statements will be achieved and actual results may differ materially from those contemplated by the forward-looking statements. These forward-looking statements involve risks and uncertainties, many of which are beyond our control. For additional information on these and other factors that could affect our forward-looking statements, see our risk factors, as they may be amended from time to time, set forth in our filings with the SEC, including our 10-K dated September 4, 2019. We disclaim and do not undertake any obligation to update or revise any forward-looking statement in this press release, except as required by applicable law or regulation.

Media:

Shannon Paulk, Corporate Communications

303-577-5897

press@www.zayo.com

Investors:

Brad Korch, Investor Relations

720-306-7556

IR@www.zayo.com