SunCom Wireless Holdings, Inc. was a wireless carrier that operated in the Southeastern United States since 1999 and in parts of the Caribbean since 2004. From the "About Us" section of the company's website:SunCom provides digital wireless communications services to more than 1 million subscribers in the markets with international, national and regional calling plans and access to the largest GSM network in the country.
As of the third quarter of 2007, SunCom was providing digital wireless communications services to approximately 1.1 million customers and employed more than 1,900 people. In February 2008, SunCom was acquired by T-Mobile USA, Inc., a subsidiary of Deutsche Telekom AG. The company traded on the NYSE under the TPC ticker symbol.
In September 2008, the SunCom brand was phased out and rebranded under the T-Mobile name.