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Zayo Executives to Present at May Investor Conferences

Press Release

BOULDER, Colo. –
Zayo Group Holdings, Inc. (NYSE: ZAYO) announced today that executives
from the company will attend four investor conferences in May. The links
to the live webcasts for the conferences will be made available through
the Investor Relations section of the Company’s website at: http://investors.zayo.com.

Jack Waters, CTO & President, Fiber Solutions, will present at the
MoffettNathanson Media & Communications Summit at the Parker Hotel in
New York on Tuesday, May 15, 2018. The presentation will be webcast live
at 9:00 a.m. EDT.

Dan Caruso, chairman and CEO, will present at the J.P. Morgan Global
Technology, Media & Communications Conference at the Westin Boston
Waterfront in Boston on Wednesday, May 16, 2018. The presentation will
be webcast live at 4:20 p.m. EDT.

Matt Steinfort, CFO, will present at the Cowen Technology, Media &
Telecom Conference at the Lotte New York Palace on Thursday, May 31,
2018 in New York. The presentation will be webcast live at 8:30 a.m. EDT.

Additionally, Rachel Stack, VP of Corporate Development and Strategy,
and Brad Korch, Senior Director of Investors Relations and Corporate
Finance, will participate in the Barclays High Yield Bond & Syndicated
Loan Conference at The Broadmoor in Colorado Springs on Tuesday, May 22,
2018.

About Zayo Group

Zayo Group Holdings, Inc. (NYSE: ZAYO) provides communications
infrastructure solutions, including fiber and bandwidth connectivity,
colocation and cloud infrastructure 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
128,000-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 infrastructure
in its carrier-neutral data centers. Zayo provides users with flexible,
customized solutions and self-service through Tranzact, an innovative
online platform for managing and purchasing bandwidth. For more
information, visit zayo.com.

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Zayo Group Holdings, Inc.
Media:
Pat Nichols,
Corporate Communications
303-226-5955
press@www.zayo.com
or
Investors:
Brad
Korch
, Investor Relations
720-306-7556
IR@www.zayo.com