Türk Telekom
TT Mobil İletişim Hizmetleri A.Ş.
Telekom
Magyar Telekom Nyrt.
Slovak Telekom, a.s.
Telekom MK
Makedonski Telekom AD Skopje
MyAccount Telekom
TELEKOM ROMANIA MOBILE COMMUNICATIONS SA
Adria Telekom
WNET Media GmbH
Telekom ME
Crnogorski Telekom
My Telekom
One Telecommunications
Moj Telekom
Telekom Slovenije