Area Code 251 – Kavala
The phone area code for Kavala is 251 (international format +30251). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 251
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Kavala
Geographic Overview
The Greek area code 251 is the National Destination Code (NDC) assigned to the city of Kavala and its surrounding administrative region in Eastern Macedonia and Thrace. This geographic code covers the regional unit of Kavala, including the municipality of Kavala, the island of Thasos, and nearby towns such as Chrysoupoli and Eleftheroupoli. As a geographic allocation, the prefix is tied to the PSTN (Public Switched Telephone Network) and is used for fixed-line services within this specific area.
Dialing Formats
When calling a Kavala landline from within Greece, subscribers must dial the national trunk prefix 0 followed by the area code and the subscriber's local number. The complete national format is 2510 XXXXXX, where '2510' represents the area code (including the leading '0') and 'XXXXXX' is the six-digit local number. For international callers, the leading '0' is omitted, and the country code for Greece (+30) is used. The international format becomes +30 2510 XXXXXX. For example, a local Kavala number such as 2510 123456 would be dialed as +30 2510 123456 from abroad.
Local vs. International Caller Instructions
Local callers within Kavala can often dial the six-digit subscriber number directly without the area code, depending on the specific telecom operator's local dialing rules. However, for clarity and to avoid misdialing, it is recommended to always include the full national number. Foreign callers must replace the trunk prefix '0' with the Greek country code '+30' and drop the leading '0' from the area code. Thus, the area code '2510' becomes '2510' when dialed internationally, but the leading '0' is not included after the country code.
Overlay and Numbering Considerations
Currently, there is no overlay code for the Kavala area, meaning that the 2510 code is exclusive to this geographic region. The numbering plan follows the ITU-T E.164 standard, and the total length of a Greek national significant number (NSN) is ten digits, including the leading '0' of the area code. The subscriber number length within the 2510 area is typically six digits, but some older numbers may have fewer digits; always verify the exact number with the called party.
Services and Usage
The 2510 prefix is primarily used for fixed-line voice services, including residential and business lines. It also supports ADSL and fiber-optic internet connections, as well as ISDN services in some legacy installations. VoIP services may also use this geographic code, but they are not tied to a physical location. When calling from a mobile phone within Greece, the same national dialing format applies (2510 XXXXXX). For any assistance, contact your telecom provider for specific dialing instructions.