International Dialing Iran
This is the international dialing code used when dialing from Iran. International Dialing Iran Code is also known as Iran International Direct Dialing prefix (or IDD) is used when dialing from the Iran to outside Iran (sometimes also refers to as Iran international access code). Do not use Iran IDD code when dialing within Iran. By simply using the Iran Dialing Code before the number, it unables you to place a call to outside Iran from within Iran. Without this international dialing Iran Code, you will not able to place a call outside the Iran because the telephone exachange will not reconginize it as a valid international call.
To dial a international number outside Iran from within Iran, you have to dial International Dialing Iran Code or Iran International Direct Dialing prefix (IDD), Iran Country Code, City/ Area Code, and then the subscriber telephone number respectively as:
+98 (International Dialing Iran Code) + (Country Code) + City Area Code + Number you wish to call.
When dialing from a mobile phone outside Iran from Iran, only Dial '+' + (Country Code) + City Area Code + Number you wish to call. (The "+" is universal mobile international direct dialing prefix also includes Iran)
On the other hand, when dialing to Iran from outside Iran, a Iran Country Code is used. Iran Country Code however is not used when dialing within Iran.
The other type of code is Iran National Direct Dialing prefix (or NDD). It is used only when dialing to a destination within the Iran (Refer to dialing Iran code). Iran NDD code is only used as long distance dialing within the Iran. Do not use Iran National Direct Dialing prefix when dialing from outside Iran into Iran.
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