Company:  T-MOBILE US, INC. (TMUS)
Form Type:  8-K/A
Filing Date:  6/4/2013 
CIK:  0001283699 
Address:  12920 SE 38TH STREET 
City, State, Zip:  BELLEVUE, Washington 98006 
Telephone:  800-318-9270 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$29.39  
Change: 
-0.42 (-1.41%)  
Trade Time: 
04:01 PM EST  
Market Cap: 
$23.58B
Description of Business
In this Annual Report on Form 10-K (�Form 10-K� or �Report�), unless the context indicates otherwise, references to �T-Mobile�, �T-Mobile US�, �our Company�, �the Company�, �we�, �our�, and �us� refer to T-Mobile US, Inc., a Delaware corporation, and its wholly-owned subsidiaries. T-Mobile US, Inc. was originally incorporated as MetroPCS Communications, Inc. (�MetroPCS�) in the State of Delaware in 2004. In connection with the business combination, described below, our name was changed to �T-Mobile US, Inc.� on April 30, 2013. Our principal operating subsidiary, T-Mobile USA, Inc. (�T-Mobile USA�) was formed in 1994 as VoiceStream Wireless PCS (�VoiceStream�), a subsidiary of Western Wireless Corporation (�Western Wireless�). VoiceStream was spun off from Western Wireless in May 1999, acquired by Deutsche Telekom AG (�Deutsche Telekom�) on May 31, 2001 and renamed T-Mobile USA, Inc. in July 2002.
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  FORM 8-K/A
    SECTION 2 FINANCIAL INFORMATION
      Item 2.01 - Completion of Acquisition or Disposition of Assets.
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      Item 9.01 - Financial Statements and Exhibits.
    SIGNATURE
  EXHIBIT 99.1
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