T-Mobile US, Inc., through its subsidiaries, provides wireless services for branded postpaid and prepaid, and wholesale customers in the United States, Puerto Rico, and the United States Virgin Islands. The company offers voice, messaging, and data services. It also provides wireless devices, including smartphones, wearables, tablets, and other mobile communication devices, as well as accessories; and wirelines services. The company offers its services under the T-Mobile, Metro by T-Mobile, and Sprint brands. The company was founded in 1994 and is headquartered in Bellevue, Washington.