Area Code 2391 – Chalkidona
The phone area code for Chalkidona is 2391 (international format +302391). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2391
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Chalkidona
Geographic Coverage and Administrative Jurisdiction
The +30 2391 prefix is a geographic National Destination Code (NDC) assigned to the fixed-line telephone network of Chalkidona, a town and former municipality in the Thessaloniki regional unit of Central Macedonia, Greece. Administratively, Chalkidona now belongs to the expanded municipality of Chalkidona within the region of Central Macedonia. The numbering area covers the town itself and the surrounding settlements, including Agios Athanasios and Koulakia, which are part of the same local calling area. This code is used for PSTN (Public Switched Telephone Network) and fixed VoIP services that are registered to this specific geographic region.
Dialing Formats and Caller Instructions
For local callers within Greece, the number is dialed in the national format: 2391 XXXX (where XXXX is the subscriber number). Note that the leading '0' is part of the national trunk prefix and is omitted when dialing from abroad. For international callers, the full E.164 format is required: +30 2391 XXXX. When calling from a mobile phone within Greece, the same national format (2391 XXXX) applies, regardless of the caller's location, as Greek mobile networks automatically route the call to the fixed-line destination.
It is important to note that Greece has implemented a closed numbering plan, meaning that the trunk prefix '0' is always dialed for domestic calls, even for local calls within the same area code. Therefore, a local call within Chalkidona still requires dialing the full national number (e.g., 2391 234567). No overlay codes are in effect for this area; the 2391 prefix is exclusively assigned to the Chalkidona geographic region.
Technical and Regulatory Considerations
From a technical standpoint, the 2391 prefix is allocated by the Hellenic Telecommunications and Post Commission (EETT) to fixed-line operators serving the Chalkidona area. Subscriber numbers under this prefix typically have a total length of 10 digits when including the country code (+30) and the NDC. The numbering resource is used for both traditional copper-line PSTN services and modern fiber-optic or VoIP-based fixed lines, but the geographic significance remains tied to the physical location of the line. Number portability is available in Greece, allowing subscribers to retain their 2391 numbers when changing operators, but the geographic association of the prefix does not change.
For businesses and residents in Chalkidona, this prefix is essential for establishing a local presence. Callers from other parts of Greece or abroad should be aware of the correct international dialing format to avoid misdialing. As with all Greek geographic codes, calls to 2391 numbers are typically charged at standard fixed-line rates, which may vary depending on the caller's operator and tariff plan.