Area Code 979 – Palencia

Geographic Coverage and Administrative Jurisdiction

The +34 979 country and area code combination corresponds to the province of Palencia, located in the autonomous community of Castilla y León in northwestern Spain. This geographic prefix is assigned under the national numbering plan administered by the Comisión Nacional de los Mercados y la Competencia (CNMC), following ITU-T E.164 recommendations. The code covers the entire provincial territory, including the capital city of Palencia and all surrounding municipalities such as Aguilar de Campoo, Guardo, Carrión de los Condes, and Venta de Baños. As a geographic code, 979 is tied to the PSTN infrastructure of the region, although calls may be routed over IP networks by operators.

Dialing Formats and Caller Instructions

For domestic callers within Spain, the national significant number is nine digits, comprising the area code (979) followed by the subscriber number (typically six to seven digits). Local calls within the same province can be dialed using the full nine-digit number, as per the current Spanish dialing plan, which requires area code dialing even for on-net calls. The format is: 979 XXX XXX.

For international callers, the correct format is: +34 979 XXX XXX (or 0034 979 XXX XXX when using the international prefix from many countries). When calling from outside Spain, you must replace the trunk prefix '0' (if present) with the country code +34. For example, to call a Palencia landline, dial +34 979 123 456.

Overlay and Numbering Considerations

Currently, there is no overlay code for the province of Palencia; the 979 prefix is exclusive to this geographic area. However, number portability allows subscribers to retain their 979 number when switching operators, even if they move to a different region, although this is less common for fixed lines. The CNMC periodically reviews numbering resources to ensure efficient use, and future overlays are possible if demand increases.

Practical Usage and Services

Numbers under 979 are primarily used for fixed-line telephony, including residential, business, and public services. They are also used for fax and DSL services. When calling from a mobile phone, the same international format applies. For callers within Spain, dialing 979 from any phone (fixed or mobile) requires the full nine-digit number. For callers outside Spain, always use the +34 prefix. It is important to note that calls to Spanish geographic numbers from abroad are typically charged at international rates, while domestic calls are subject to standard national tariffs.