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)
National conventions for writing telephone numbers They start with a two to four digit area code. A three digit code starting with 07 indicates that the number is for a mobile phone. All national numbers start with one leading 0, and international calls are specified by 00 or +. The numbers are written with the area code followed by a hyphen, and then two to three groups of digits separated by spaces. In Turkey the format for telephone numbers is commonly seen as 0BBB AAA AA AA. While landline numbers having the prefix 02BB AAA AA AA, 03BB AAA AA AA, or 04BB AAA AA AA