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T-Mobile US, Inc. is a wireless network operator in the United States and the German telecommunications company Deutsche Telekom (DT) is a majority shareholder, through its holding company, T-Mobile International AG. Its headquarters are located in Bellevue, Washington. T-Mobile US provides wireless voice, messaging, and data services in the United States, Puerto Rico and the U.S. Virgin Islands under the T-Mobile, MetroPCS and GoSmart Mobile brands. The company operates the third largest wireless network in the U.S.〔(T-Mobile Rises to 3rd Place, Beats Sprint in Carrier Ranking )〕 market with over 61.2 million customers and annual revenues of $29.56 billion.〔 Its nationwide network reaches 98 percent of Americans,〔(International Prepaid Phone Plans )〕 through its EDGE 2G/HSPA 3G/HSPA+ 4G/4G LTE networks, as well as through roaming agreements ''(see section: Radio frequency spectrum chart)''. , 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.〔(【引用サイトリンク】url=http://www.dslreports.com/shownews/JD-Power-Awards-TMobile-For-Best-Customer-Service-112564 )〕〔(【引用サイトリンク】url=http://www.wirelessindustrynews.org/news-feb-2011/2376-020511-win-news.html )〕〔(【引用サイトリンク】url=http://www.brighthand.com/default.asp?newsID=16841&news=Wireless+Carrier+Customer+Support+J.D.+Power+T-Mobile+ATT+Verizon+Sprint )〕〔(【引用サイトリンク】url=http://www.phonedog.com/2010/08/12/t-mobile-wins-j-d-power-award-for-customer-satisfaction-again/ )〕 The company traces its roots to the 1994 establishment of VoiceStream Wireless PCS, originally a subsidiary of Western Wireless Corporation. Western Wireless spun off VoiceStream Wireless to shareholders in 1999, creating a public independent company, VoiceStream Wireless Corporation. In July 2002, VoiceStream Wireless Corporation was renamed T-Mobile USA. After a failed attempt by AT&T in 2011 to purchase the company in a $39 billion stock and cash offer (which was withdrawn after being faced with significant regulatory and legal hurdles, along with heavy resistance from the U.S. government), T-Mobile USA announced its intent to merge with MetroPCS, the sixth largest carrier in the United States, to improve its competitiveness with other national carriers; the deal was approved by the Department of Justice and Federal Communications Commission in March 2013. On May 1, 2013, the combined company, renamed T-Mobile US, Inc., began trading as a public company on the New York Stock Exchange, under the symbol ''TMUS''. ==History== T-Mobile US, Inc. traces its roots to the 1994 establishment of VoiceStream Wireless PCS as a subsidiary of Western Wireless Corporation. Spun off from parent Western Wireless on May 3, 1999, VoiceStream Wireless was purchased by Deutsche Telekom AG in 2001 for $35 billion and renamed T-Mobile USA, Inc. in July, 2002. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「T-Mobile US」の詳細全文を読む スポンサード リンク
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