T-Mobile is the leading mobile network operator of the Czech Republic, ahead of O2 and Vodafone. It has used the T-Mobile identity since it was rebranded from Paegas in 2002. In 2015, the T-Mobile logo was dropped in favor of the 'T' logo used by Telekom-branded sister companies.
| 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