ATN also operates through its subsidiary companies: Alltel (US), Commnet Wireless, LLC (US), GT&T (Guyana), Sovernet (US), CellularOne in Bermuda, ION Holdco, LLC (US), Islandcom Telecommunications (Turks & Caicos), and Choice Communications (US Virgin Islands).
International voice traffic is carried for GT&T by Verizon; international collect calling is provided through agreements with AT&T, Sprint, Verizon, Call Home Telecom, Bell Canada, Telus and British Telecom.
American Broadcasting Company | Fox Broadcasting Company | Ford Motor Company | The Walt Disney Company | The Daily Telegraph | Royal Shakespeare Company | Guyana | Hudson's Bay Company | East India Company | Dutch East India Company | McKinsey & Company | H. J. Heinz Company | Company | Peninsular and Oriental Steam Navigation Company | Georgetown, Guyana | company | Bad Company | telegraph | production company | Three's Company | telephone | Shell Oil Company | Goodyear Tire and Rubber Company | Glenn L. Martin Company | The Coca-Cola Company | Southern Pacific Transportation Company | Pullman Company | Marconi Company | Canon (company) | Victor Talking Machine Company |