Eastern & Southern Europe

Albania

• Albtelecom

Belarus

• Beltelecom

Bosnia & Herzegovina

• BH Telecom

Bulgaria

• Bulfon
• Bulgarian Telecommunications Company (BTC)
• Mobikom

Croatia

• Croatian Telecom (HT)

Cyprus

• Cyprus Telecommunications Authority (CYTA)
• CYTA Telecards

Czech Republic

• Czech Telecom

Estonia

• Elion
• Voicenet

Greece

• Hellenic Organisation of Telecommunications (OTE)

Hungary

• Magyar Telekom

Italy

• Albacom
• Telecom Italia

Latvia

• Lattelekom
• Collectoria
• Lattelekom Telecards

Lithuania

• Lietuvos Telekomas

Macedonia

• Macedonia Telecommunications (MT)

Malta

• Maltacom

Moldova

• Moldtelecom

Monaco

• Monaco Telecom

Montenegro

• Telekom Montenegro

Poland

• TP

Republika Srpska

• Telekom Srpske

Romania

• Romtelecom

Russia

• Baltic Communications Ltd (BCL)
• Bashtel
• Comstar Telecommunications
• Golden Telecom
• Kubtelecom
• Lanck Telecom
• Moscow Telecommunications Co. (MGTS)
• Novgorod Telecom
• Relcom
• Rostelecom
• Sakhalin Telecom
• ST Company
• St Petersburg Taxophones (CNM)
• Sakhatelecom
• Tomsk Telecom
• Ufa GTS
• Uralsviazinform
• VolgaTelecom

Serbia

• Telekom Srbija

Slovakia

• Slovak Telecom

Slovenia

• Telekom Slovenije

Ukraine

• Ukrtelecom
• Utel

Vatican City

• Carte Telefoniche Vaticane