Area Code 25 – Qom province

Geographic Overview

The +98 25 country and area code combination is the international dialing prefix for the province of Qom, a significant religious and political center in Iran. Geographically, this code covers the city of Qom and its surrounding administrative regions, which include smaller towns and villages within Qom Province. Qom is one of Iran's major metropolitan areas, located approximately 140 kilometers south of Tehran, and serves as a hub for theological seminaries and pilgrimage. The area code is exclusively assigned to fixed-line (PSTN) services within this province, following the ITU-T E.164 numbering plan.

Dialing Formats

For callers within Iran, the national trunk prefix is '0', so local calls to Qom are dialed as 025 followed by the local subscriber number. The complete national number typically comprises 10 digits, including the leading '0'. For international callers, the format is +98 25 followed by the local subscriber number, omitting the trunk prefix. The local subscriber number length in Qom is typically 8 digits, making the full international number 13 digits when including the country code and area code (e.g., +98 25 XXXX XXXX).

Local and International Call Instructions

When calling from outside Iran, you must first dial your country's international access code (e.g., 011 from the US, 00 from most European countries), then Iran's country code 98, followed by the area code 25 without the leading '0', and finally the local number. For example, to call a landline in Qom with the local number 12345678, you would dial +98 25 12345678. If you are already within Iran, simply dial 025 12345678.

Overlay and Numbering Considerations

As of the latest ITU-T allocations, there is no overlay code for Qom; the 25 prefix remains the sole geographic code for the province. However, with the growth of telecommunications services, some numbers within this range may be assigned to VoIP or fixed-wireless operators, but they remain geographically associated with Qom for routing purposes. Mobile numbers in Iran are distinct, starting with 09xx, and are not affected by this area code.

Practical Tips for Callers

For businesses or individuals frequently contacting Qom, it is advisable to store numbers in international format (+98 25...) to avoid confusion when dialing from abroad. Be aware that call charges for international calls to Qom will vary depending on your carrier and any applicable tariffs. Always verify the local number length before dialing, as some older lines may have fewer digits.