Turkey has country code +90(dialed as 00 90 from many places). All numbers are 10 digits after country code +90. Note that you must omit the trunk prefix 0 from the beginning of the Turkish number when calling internationally.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
90 is the dialling code for Turkey
The Turkish Republic of Northern Cyprus is a self-declared state, recognized only by Turkey. It uses Turkey's telephone country code +90, with the telephone area code +90 392.
'00' is not part of the country code, it is a commonly used international access prefix. Country code +90 is Turkey, and +90 542 is a Vodafone mobile.
Telephone numbers in Turkey consist of the telephone country code +90, followed by a three-digit area code and a 7-digit subscriber number.
Country code +90 is Turkey.
The Philipines, Russia and various other countries all have 905 as area codes in their country. In North America (USA, Canada, etc.), area code +1 905 is used in the suburbs of Toronto, Canada, extending south to Niagara Falls. Telephone country code +90 is Turkey.
The country code and area code of Athlone, Ireland is 353, (0)90.
The country code and area code of Adana, Turkey is 90, (0)322.
The country code and area code of Adiyaman, Turkey is 90, (0)416.
The country code and area code of Afyon, Turkey is 90, (0)272.
The country code and area code of Agri, Turkey is 90, (0)472.
The country code and area code of Aksaray, Turkey is 90, (0)382.