Organization and Description of Business

12 Months Ended

Jun. 30, 2017

Organization and Description of Business [Abstract]

Organization and Description of Business

(1) ORGANIZATION AND DESCRIPTION OF BUSINESS

Business

Zayo Group Holdings, Inc., a Delaware corporation, was formed on November 13, 2007, and is the parent company of a number of subsidiaries engaged in bandwidth infrastructure services. Zayo Group Holdings, Inc. and its subsidiaries are collectively referred to as “Zayo Group Holdings” or the “Company.” The Company’s primary operating subsidiary is Zayo Group, LLC (“ZGL”). Headquartered in Boulder, Colorado, the Company operates bandwidth infrastructure assets, including fiber networks and data centers, in the United States, Canada and Europe to offer:

· Fiber Solutions, including dark fiber, dedicated lit networks and mobile infrastructure services.

· Transport services, including wavelength, wholesale IP and SONET services.

· Enterprise Networks, including Ethernet, private lines, dedicated Internet and cloud services.

· Colocation, including provision of colocation space and power and interconnection services.

· Voice, unified communications and services dedicated to small and medium sized businesses.

· Other services, including Zayo Professional Services (“ZPS”).

The Company’s shares are listed on the New York Stock Exchange (NYSE) under the ticker symbol “ZAYO”.