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Zayo Announces Redemption of its 8.125% Senior Secured Notes

Boulder, Colo. – March 9, 2015 – Zayo Group, LLC (“Zayo”), a subsidiary of Zayo Group Holdings, Inc. (NYSE:ZAYO), an international provider of Bandwidth Infrastructure services, announced today that it has called for redemption of the full remainder of its $675.0 million 8.125% Senior Secured Notes due 2020 (CUSIP No. 989194AG0) (the “Senior Secured Notes”) at a redemption price equal to 100% of the principal amount of the Senior Secured Notes to be redeemed, plus the Applicable Premium (as defined in the indenture governing the Senior Secured Notes) as of the redemption date, plus accrued and unpaid interest and Additional Interest (as defined in the indenture governing the Senior Secured Notes), if any, on the principal amount of the Senior Secured Notes being redeemed to the redemption date.

The redemption of the Senior Secured Notes will be funded with a portion of the proceeds of Zayo’s $730 million note offering, which was completed on March 9, 2015.

Zayo expects that the redemption date will be the 30th day following the delivery of notice of the redemption by the trustee for the Senior Secured Notes, The Bank of New York Mellon Trust Company, N.A.

About Zayo Group

Based in Boulder, Colo., Zayo Group Holdings, Inc. (NYSE: ZAYO) is a publicly traded company that provides comprehensive Bandwidth Infrastructure services in over 300 markets throughout the US and Europe. Zayo delivers a suite of dark fiber, mobile infrastructure, and cloud & connectivity services to wireline and wireless customers, datacenters, Internet content providers, high-bandwidth enterprises, and government agencies across its robust 82,000 route mile network. The company also offers 45 carrier-neutral datacenter facilities across the US and France. Zayo was the first to offer bandwidth shopping and buying in under 2 minutes through Tranzact.