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 is the subscriber number. The entire number must always be dialed, including the leading "0", even if calling within a local area, therefore the national destination code is not separated from the subscriber number. According to international convention, numbers are sometimes written "+41 AA BBB BB BB" to include the country calling code. Certain nationwide destination codes, such as for toll-free or premium-rate telephone numbers, are written "0800 BBB BBB" or "0900 BBB BBB". "Short numbers" are used for emergency services such as "112" that are written "1CC" or "1CCC". Swedish telephone numbers are between eight and ten digits long.