Area Code 11 – Yerevan

Overview of Armenia's +374 11 Geographic Prefix

The +374 11 prefix is a geographic area code assigned to Yerevan, the capital and largest city of Armenia. It serves as a National Destination Code (NDC) for fixed-line telephone services within the city's administrative boundaries. Yerevan is the political, economic, and cultural hub of Armenia, and this code is used by residential, business, and government subscribers connected to the public switched telephone network (PSTN) in the city.

Geographic Coverage and Administrative Jurisdiction

The +374 11 code covers the entire Yerevan municipality, including its 12 administrative districts: Ajapnyak, Arabkir, Avan, Davtashen, Erebuni, Kanaker-Zeytun, Kentron, Malatia-Sebastia, Nor Nork, Nork-Marash, Nubarashen, and Shengavit. It is important to note that while Yerevan is a single city, its numbering plan is distinct from other Armenian regions, which use different area codes (e.g., 10 for Yerevan's other fixed-line services, 312 for Gyumri, etc.). The 11 code is one of several geographic codes allocated to Yerevan, reflecting the high demand for telephone numbers in the capital.

Dialing Formats and Caller Instructions

For callers within Armenia, dialing a Yerevan number with the 11 prefix requires the trunk prefix '0' followed by the area code and subscriber number. The national significant number (NSN) for Yerevan fixed lines is 8 digits long, starting with '11'. Thus, a typical national dialing format is: 0 11 XXX XXX (where X represents the subscriber digits). For example, a local Yerevan number might be dialed as 011 234 567 from anywhere in Armenia.

For international callers, the Armenian country code (+374) replaces the trunk prefix '0'. Therefore, the international dialing format is: +374 11 XXX XXX. For instance, to call a Yerevan number from abroad, you would dial +374 11 234 567. When calling from a mobile phone, it is advisable to use the international format with a '+' sign for universal accessibility.

Overlay and Numbering Considerations

Yerevan has multiple area codes (10, 11, etc.) operating as overlays within the same geographic region. This means that local calls within Yerevan may require 8-digit dialing even for numbers with the same area code, depending on the specific routing rules. However, as of the current numbering plan, 8-digit dialing is mandatory for all fixed-line calls within Armenia, including local calls. This change was implemented to accommodate the growing number of subscribers and to facilitate number portability.

Subscriber numbers under the 11 prefix are typically 6 digits long, making the total NSN 8 digits (11 + 6 digits). The allocation of these numbers is managed by the Public Services Regulatory Commission of Armenia, ensuring efficient use of the numbering resources.

Practical Usage and Reliability

Fixed-line services under the 11 prefix are provided by various operators, including the national incumbent and alternative carriers. These lines are widely used for business communications, government offices, and residential connections. The geographic nature of the code means that calls to these numbers are tariffed based on the caller's location, with lower rates for local calls. For businesses, having a Yerevan geographic number can enhance local presence and customer trust.

When dialing from abroad, callers should be aware of time zones (Armenia is UTC+4) and potential international call charges. It is always recommended to confirm the correct number with the recipient, as number portability may allow a number with the 11 prefix to be routed to a different operator or even a mobile service, though the geographic tariff may still apply.