Zayo Group is global provider of bandwidth infrastructure services, including dark fiber, lit and IP services, and carrier-neutral colocation and interconnection. Its 72,800 route mile network connects locations in and between cities on dense metro and intercity fiber assets. Zayo’s network serves 271 markets in seven countries and 45 states, plus Washington D.C. Zayo’s fiber network connects the largest U.S. and European cities as well as many Tier 2-5 U.S. markets. Zayo’s network reaches over 11,100 buildings, including over 500 data centers, over 500 carrier POPs, and thousands of enterprise buildings. The firm was founded in 2007 and is headquartered in Louisville, Colo.