where is t mobile headquarters located
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.oSmart Mobile is a T-Mobile US subsidiary brand service that launched in Beta on December 7, 2012, and became officially available nationwide on February 19, 2013. GoSmart offers no-contract SIM wireless services.