A global internet service provider has selected Zayo Group Holdings, Inc. (NYSE: ZAYO) for metro dark fiber infrastructure to replace services from legacy providers and expand their network to new locations. The solution leverages Canadian fiber assets from Zayo's recent Allstream acquisition and the resulting unique cross-border connectivity. The customer, one of Zayo's largest metro dark fiber customers in the U.S. and Europe, will consolidate services from legacy providers in Canada to Zayo and add additional network locations. With Zayo's extensive on-net connectivity to enterprise buildings in Toronto and more than 5,500 route miles in multiple Canadian cities, deployment of the dark fiber solution can begin immediately. The 20-year agreement will predominantly leverage existing Zayo network assets in Canada and the U.S. "Zayo's unique Pan Canadian/U.S. capability and dense metro footprint enabled us to grow the relationship with this customer as they expand their global dark fiber networks," said Mike Strople, managing director, Canada at Zayo. "Dark fiber provides them with the ability to scale as they grow." With data traffic growing at unprecedented rates, internet and content providers are upgrading networks and infrastructure to meet the demand for bandwidth. Zayo continues to benefit from the adoption of dark fiber and other high-capacity, low-latency solutions. For more information on Zayo, please visit zayo.com. About Zayo Group Zayo Group Holdings, Inc. (NYSE: ZAYO) provides communications 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 112,600-mile network in North America 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. 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 August 25, 2016. 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.