Press Release

GTT Names Jason Ness Senior Vice President of Channel Sales

McLean, VA, March 9, 2016

GTT Communications, Inc. (NYSE: GTT), the leading global cloud networking provider to multinational clients, announced today that Jason Ness, former Telnes Broadband CEO and founder, has been appointed senior vice president of channel sales at GTT. The announcement follows GTT’s acquisition of Telnes Broadband, an Internet and managed services provider, last month. Mr. Ness founded Telnes Broadband in 2003. He led the company to deliver year-over-year revenue growth through an expanding channel partner program and a growing and diverse client base. “Jason’s success in channel sales, coupled with his deep technical knowledge, makes him a significant addition to GTT,” said Rick Calder, GTT president and CEO. “Jason is deeply committed to the client experience and providing partners with the services and support they require to succeed.” “I am excited to build a strong channel program at GTT,” said Mr. Ness. “GTT’s outstanding customer service, coupled with its broad global reach and leading service portfolio, will enable our partners to win in the marketplace.” About GTT GTT’s global Tier 1 IP network enables clients to connect to any location in the world and with any application in the cloud. Our cloud networking services provide a better way for multinational clients to reach the cloud. Clients trust us to deliver secure solutions with simplicity, speed and agility. For more information, visit www.www.gtt.net. GTT Media Inquiries: Ann Rote +1.703.677.9941 [email protected]