Area Code 287 – Jermuk, Vayots dzor

Overview of Area Code 287

Area code 287 is a geographic National Destination Code (NDC) assigned to the town of Jermuk and its surrounding areas within the Vayots Dzor Province of Armenia. This code is part of the Armenian public switched telephone network (PSTN) and is used for fixed-line services. The region is known for its mineral water springs and as a mountain spa resort, attracting both domestic and international visitors.

Geographic Coverage and Administration

The 287 code covers Jermuk and adjacent rural communities in the southeastern part of Vayots Dzor. Administratively, it falls under the jurisdiction of the Jermuk Municipality. The area is characterized by its high altitude and mountainous terrain, which historically influenced the deployment of telecommunications infrastructure. Subscribers within this code are served by local exchanges that route calls through the Armenian national backbone network.

Dialing Formats

To call a fixed-line number in Jermuk from within Armenia, you must dial the trunk prefix 0, followed by the area code 287, and then the subscriber's 5- or 6-digit local number. For example, a local number might be formatted as 0 287 XX XX XX.

From outside Armenia, callers must use the international access prefix (typically 00 or +), followed by the Armenian country code 374, then the area code 287 without the leading zero, and finally the local number. Thus, the international format becomes +374 287 XX XX XX.

Caller Instructions

• Local callers within Jermuk: If you are calling from another fixed-line number within the same area code, you may be able to dial only the local subscriber number, depending on the local exchange settings. However, it is always safe to dial the full national format (0 287 ...) to avoid misdialing.
• Callers from other Armenian regions: Dial 0 287 followed by the local number.
• International callers: Dial your country's exit code (e.g., 011 from the US, 00 from most European countries), then 374 287, followed by the local number. Do not include the trunk prefix '0'.

Overlay and Numbering Considerations

As of the latest ITU-T E.164 national numbering plan updates, there is no overlay code for the 287 area. The numbering capacity is sufficient for the current subscriber base. However, with the ongoing digital transformation and potential introduction of VoIP-based fixed services, the Armenian Telecommunications Regulatory Body may consider number portability and possible future overlays. For now, the 287 code remains exclusively associated with the Jermuk geographic region.

When dialing from abroad, ensure you have the correct international prefix for your location, as it varies by country. Additionally, be mindful of time zone differences (Armenia is UTC+4) when placing calls.