Robert W. Haulbrook

Guam Telephone Authority provides telecommunication services. It offers basic lines, session initiation protocol trunks, integrated services, digital network, phone systems, fleet management. The company was founded in 1970 and is headquartered in Tamuning, Guam.

TeleGuam Holdings LLC engages in the provision of telecommunications solutions. It offers services relating to wireless network, internet, digital television, and local and long-distance phone service. The company is headquartered in Tamuning, Guam.

Part of Centennial Communications Corp., Centennial Wireless is a provider of wireless and broadband telecommunication services. The company is based in Fort Wayne, IN.

Part of Phoenix Tower International LLC, Meteor Mobile Communications Ltd. provides wireless communications services. The company is based in Dublin, Ireland. Meteor Mobile Communications was acquired by eir Group Ltd., a SUB of Phoenix Tower International LLC from Western Wireless Corp. on November 23, 2005 for $508.80 million.