T-Mobile is the third-largest mobile network operator in the United States, after the two legacy carriers, AT&T and Verizon Communications. It is the only mobile network operator owned by Deutsche Telekom that is outside of Europe.
The United States (and, until 2015, the United Kingdom) is the only country where Deutsche Telekom still uses the full T-Mobile logo and wordmark (in all other countries it uses the ·T·· logo, with the exception of Greece and Austria).
On February 2, 2020, T-Mobile debuted a new look. This one is the same as before, but the magenta color is darker, and the 5 squared dots were dropped to 2.
| Main companies:|
Telekom Deutschland | Hrvatski Telekom (Crnogorski Telekom (76.53%) | HT Mostar (39.1%)) | Magyar Telekom | Makedonski Telekom | OTE (40%) | Slovak Telekom | Telekom Romania (54%) (via OTE) | BT (12%) | Magenta Telekom
| eAccess (E MOBILE) | SB Creative | SBI Group | SoftBank Mobile | SoftBank Telecom | T-Mobile US (Sprint, Tidal) | Willcom | Yahoo! Japan