ATN International, Inc., through its subsidiaries, provides telecommunications services to retail and business customers worldwide.

The company operates through International Telecom and US Telecom segments. It offers mobile, data, and voice services; handsets and accessories; high-speed broadband, voice, video, and fixed services, as well as fiber broadband and managed IT services; wholesale roaming, site maintenance, and international long-distance services, as well as leases critical network infrastructure, including towers and transport facilities; and information technology services, such as network, application, infrastructure, and hosting services.

The company was formerly known as Atlantic Tele-Network, Inc. and changed its name to ATN International, Inc. in June 2016.

ATN International, Inc. was incorporated in 1987 and is headquartered in Beverly, Massachusetts.