Telephone numbers in Turkey former area codes other than the primary one mentioned. The country calling code of Turkey is 90. trunk / inner - city code number : 0 international code : 00 Ankara DMS-300 Istanbul DMS-300 İzmir DMS-300 Ankara, İstanbul and İzmir DMS-300 International Exchanges Accept: L/D + area code + subscriber number + ST L /D = language digit : 0 (direct dialing) L /D = language digit : 2 (operator assistance) There are two international operator centers in Turkey, Ankara and İstanbul. Each one of these centers provides operator telephone services according ITU/T dialing: L/D + code11 + ST (Random)
Telephone numbers in Singapore Premium rate services 0xx - International access code 13xx - Voicemails 1777 - Non-emergency ambulance 16xx - Service providers' customer services 18xx - International calling card access numbers 993 - Ministry of Health's special ambulance service - previously used for suspected cases of H1N1 and SARS 995 - Singapore Civil Defence Force - Fire or Emergency Ambulance 999 - Police This is the list of telephone exchanges in Singapore. They also share the telephone exchanges with OpenNet locations, cable TV and '6'-regoed phone lines (each from SingTel and StarHub). The generic international call prefix when making an international call is