Area Code 13 – Gilan

Overview of Iran's +98 13 Geographic Code

The +98 13 country and area code combination is the ITU-T E.164 international dialing prefix for the Gilan Province, located in northern Iran along the Caspian Sea. This geographic code is assigned to the province's PSTN (Public Switched Telephone Network) infrastructure, covering both fixed-line residential and business subscribers within the province's administrative boundaries. The code is administered by the Communications Regulatory Authority (CRA) of Iran under the national numbering plan, which follows a variable-length format where the area code is followed by a subscriber number of 7 to 8 digits.

Coverage and Major Cities

The +98 13 code serves the entire Gilan Province, including its capital, Rasht, as well as other major urban centers such as Bandar-e Anzali, Lahijan, Langarud, and Astara. The code encompasses both urban and rural exchanges, with local numbers allocated based on the subscriber's physical line location. For example, a fixed-line number in Rasht might appear as +98 13 3XXX XXXX, while a subscriber in Lahijan could have +98 13 4XXX XXXX, reflecting the hierarchical routing within the province.

Dialing Formats and Instructions

When dialing a Gilan fixed-line number from within Iran, callers must use the trunk prefix '0' followed by the area code and subscriber number: 0 13 XXXX XXXX. For international callers, the format is +98 13 XXXX XXXX (or 0098 13 XXXX XXXX from countries using the international prefix 00). It is crucial to omit the leading '0' when dialing from abroad, as the '0' is only used for domestic trunk calls. For example, a local call from Tehran to Rasht would be dialed as 013 3XXX XXXX, while a call from the United States would be 011 98 13 3XXX XXXX.

Overlay and Numbering Considerations

As of the latest ITU-T national numbering plan updates, the 13 area code does not have an overlay code; it remains the sole geographic code for Gilan. However, the rapid growth of fixed-line services and the introduction of VoIP (Voice over Internet Protocol) have led to the allocation of non-geographic numbers (e.g., +98 9xx for mobile) that are not tied to this code. Fixed-line numbers under +98 13 are not portable to mobile networks, but they can be ported between fixed-line operators within the same geographic region, subject to CRA regulations. Callers should note that while mobile numbers in Iran are 10 digits after the country code (e.g., +98 912 XXX XXXX), fixed-line numbers in Gilan vary in length, typically 10 digits total including the area code (e.g., +98 13 3XXX XXXX).

Practical Tips for Callers

For international callers, always verify the complete subscriber number, as omitting a digit will result in a failed call. For businesses, it is advisable to list both local and international formats on websites to facilitate customer contact. For travelers within Iran, using the domestic format with '0' is essential. As with all geographic codes, the cost of calling +98 13 from abroad is typically higher than domestic rates, and VoIP services may offer reduced tariffs. Always check with your service provider for specific international calling charges.