GTT and AT&T Enter Into Interconnection Agreement

McLean, Virginia, and Dallas, June 30, 2015 – Both companies issued the following statement:

GTT Communications, Inc. (NYSE: GTT) and AT&T (NYSE:T) have signed a long-term, bilateral interconnection agreement for their IP networks. With the additional capacity and new interconnection locations between the networks, customers will experience reliable traffic exchange and high-quality network performance. As the Internet continues to evolve, collaborations between Internet service providers facilitate the dynamic, robust and reliable exchange of Internet traffic.

“This agreement will benefit both GTT and AT&T customers,” said Rick Calder, GTT President and CEO. “We are working together to enable an expanded, secure and resilient interconnection environment to serve our customers.”

“We continue to ensure our customers have the highest-quality network experience possible,” said Roman Pacewicz, senior vice president of Marketing & Global Strategy for AT&T Business Solutions. “With these new interconnection locations, customers can continue to rely on AT&T to meet their networking needs.”