T-Mobile US, Inc., commonly shortened to T-Mobile, is a United States-based wireless network operator whose majority shareholder is the German telecommunications company Deutsche Telekom (DT).
 
T-Mobile is the third largest wireless carrier in the United States with 83.1 million customers as of end of Q2 2019.
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T-Mobile US provides wireless voice and data services under the T-Mobile and Metro by T-Mobile brands, and also serves as the host network for many mobile virtual network operators. The company has annual revenues of over $40 billion.
 
In 2015, Consumer Reports named T-Mobile the number one American wireless carrier. In 2017, T-Mobile was ranked #1 in Customer Service Satisfaction by Nielsen.
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