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)
International direct dialing International direct dialing International direct dialing (IDD) or international subscriber dialling (ISD) is placing an international telephone call that is dialed directly by a telephone subscriber, rather than by an telephone operator. The term "international subscriber dialling" was used in the United Kingdom and Australia until the terminology was changed to international direct dialling. Since the late 20th century, most international calls are dialed directly. Calls are initiated by dialing the international call prefix for the originating country, followed by the country calling code for the destination country, and finally the national telephone number of the destination. When phone numbers