Mashhad is in Iranian telephone area code 0511, which is +98 511 in international format.
zip code mashhad
Check the first 5 Digit of your postal code in your ID card (کارت ملی)
mashhad postal code is:91735
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The country code and area code of Golestan, Iran is 98, (0)171.
The country code and area code of Babol, Iran is 98, (0)111.
The country code and area code of Hamedan, Iran is 98, (0)811.
The country code and area code of Kermanshah, Iran is 98, (0)831.
The country code and area code of Fars, Iran is 98, (0)711.
The country code and area code of Gilan, Iran is 98, (0)131.
The country code and area code of Hormozgan, Iran is 98, (0)761.
The country code and area code of Kerman, Iran is 98, (0)341.