Area Code 25 – Blida/Médéa

Overview of Area Code 25 (Algeria)

In the Algerian national numbering plan, area code 25 is a geographic National Destination Code (NDC) assigned to the wilayas (provinces) of Blida and Médéa, located in the north-central part of the country. This code is used for fixed-line (PSTN) services within these administrative regions. When dialing a fixed-line number in Blida or Médéa from within Algeria, subscribers must include the trunk prefix 0 followed by the area code and the subscriber's seven-digit local number. The complete national significant number (NSN) is ten digits long, formatted as 0 25 XX XX XX XX.

Geographic Coverage and Major Cities

The 25 area code covers the following key urban centers and their surrounding areas:

• Blida – the capital of Blida Province, often called the “City of Roses,” located about 45 km south of Algiers.
• Médéa – the capital of Médéa Province, situated in the Tell Atlas mountains.
• Other towns and communes within these wilayas, including Boufarik, Bougara, Larbaâ, and Berrouaghia, among others.

Dialing Formats

To call a fixed-line number in the 25 area code, the dialing format depends on the caller's location:

• Domestic calls (within Algeria): Dial 0 25 XX XX XX XX. The leading 0 is the trunk prefix used to access the national PSTN.
• International calls (from outside Algeria): Dial +213 25 XX XX XX XX or 00213 25 XX XX XX XX. The country code for Algeria is +213, and the leading 0 of the national prefix is omitted.

For example, a local number in Blida might be 025 12 34 56. From abroad, you would dial +213 25 12 34 56.

Overlay and Numbering Considerations

Algeria's numbering plan does not currently use overlays for geographic area codes. Each wilaya or group of wilayas has a distinct NDC. The 25 code is exclusively for fixed-line services; mobile numbers in Algeria use separate non-geographic prefixes (e.g., 05, 06, 07). When calling a fixed number in Blida or Médéa, ensure you include the correct area code, as omitting it will result in a failed call.

Caller Instructions

• Local callers within the 25 area: Even for local calls, the full national format (including the area code) is required, as Algeria uses closed dialing for fixed lines.
• Foreign callers: Always replace the leading 0 with the international prefix of your country (e.g., 00 from most European countries) and then dial 213 followed by the area code and number.

This structure ensures reliable routing and billing for both domestic and international telecommunications.