BOULDER, Colo.--(BUSINESS WIRE)--Zayo Group Holdings, Inc. (“Zayo”, “ZGH” or “the Company”) (NYSE: ZAYO), a leading provider of bandwidth infrastructure and network-neutral colocation and connectivity services, announced results for the three months ended March 31, 2015. Third fiscal quarter revenue of $340.7 million grew 21% over the previous quarter on an annualized basis. Adjusted EBITDA of $199.0 million increased 20% over the previous quarter on an annualized basis. Operating income for th


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