-Mobile USA, Inc. is an American mobile-network operator, headquartered in Bellevue, Washington, that provides wireless voice, messaging and data services in the United States, Puerto Rico and the U.S. Virgin Islands. The company is the fourth-largest wireless carrier in the U.S. market with 33.73 million customers and annual revenues of US$21.35 billion. As of 2011, J.D. Power and Associates, a global marketing-information-services firm, ranked the company highest among major wireless carriers for retail-store satisfaction four years consecutively and highest for wireless customer care two years consecutively.
The company traces its roots to the 1994 establishment of VoiceStream Wireless PCS as a subsidiary of Western Wireless Corporation. Western Wireless spun off VoiceStream Wireless to shareholders on May 3, 1999, creating a public independent company, VoiceStream Wireless Corporation, that traded on the NASDAQ stock market under the ticker symbol VSTR. VoiceStream Wireless acquired Omnipoint Communications in February 2000 and Aerial Communications in May 2000. On June 1, 2001, Deutsche Telekom AG (DT) completed the acquisition of both VoiceStream Wireless Corporation for US$35 billion and Powertel, Inc. for US$24 billion. In July 2002, VoiceStream Wireless Corporation was renamed T-Mobile USA, Inc. which operates as the U.S. operating entity of T-Mobile International AG, the mobile-communications holding company and subsidiary of DT.
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