T-Mobile

T-Mobile US, Inc. is an American wireless network operator partly owned by German telecommunications company Deutsche Telekom, which has a 43.2% share. Its headquarters are located in Bellevue, Washington, in the Seattle metropolitan area, and Overland Park, Kansas, in the Kansas City metropolitan area. T-Mobile is the second-largest wireless carrier in the United States, with 106.9 million subscribers as of the end of Q3 2021.T-Mobile US provides wireless voice and data services in the United States under the T-Mobile and Metro by T-Mobile brands, and also serves as the host network for many mobile virtual network operators.

Source: Wikipedia