United States securities and exchange commission logo May 4, 2020 Steven Berns Chief Financial Officer GTT Communications, Inc. 7900 Tysons One Place Suite 1450 McLean, VA 22102 Re: GTT Communications, Inc. Form 10-K for the Year Ended December 31,2019 Filed March 2, 2020 File No. 001-35965 Dear Mr. Berns: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Technology