ATN International, Inc. engages in investment in communications, energy, and technology businesses. It operates through the U.S. Telecom and International Telecom segments. The U.S. Telecom segment offers carrier services, including wholesale roaming services, site maintenance, and the leasing of critical network infrastructure. The International Telecom segment caters to other telecom providers such as international long-distance, roaming from other carriers, and transport and access services, as well as fixed internet and voice, and retail mobility services. The company was founded by Cornelius B. Prior Jr. in June 1987 and is headquartered in Beverly, MA.