Area Code 984 – Asturias
The phone area code for Asturias is 984 (international format +34984). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 984
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Asturias
Geographic Coverage and Administrative Jurisdiction
The +34 984 prefix is a geographic National Destination Code (NDC) assigned to the Principality of Asturias, an autonomous community in northwest Spain. This code serves the entire province, including its capital, Oviedo, as well as major municipalities such as Gijón, Avilés, Siero, Langreo, and Mieres. The numbering area aligns with the administrative boundaries of Asturias, ensuring that any fixed-line subscriber within the region can be reached using this prefix.
Dialing Formats and Caller Instructions
For local callers within Spain, the full nine-digit national significant number must be dialed, which includes the prefix 984 followed by the subscriber's six-digit line number. For example, a local call to Oviedo would be dialed as 984 12 34 56. International callers must replace the leading zero with the Spanish country code +34, resulting in the format +34 984 12 34 56. It is important to note that the trunk prefix '0' is only used for domestic calls; international dialing requires the '+' sign or the appropriate international access code (e.g., 00 from most countries).
Overlay and Numbering Plan Considerations
Asturias is also served by the older geographic prefix 985. The introduction of 984 as an overlay code was necessary to meet the growing demand for fixed-line services without requiring existing subscribers to change their numbers. This overlay means that both 984 and 985 numbers coexist within the same geographic region, and all local calls must include the full nine-digit number, even for calls between the same city or town. Ten-digit dialing (including the trunk prefix) is mandatory for all domestic calls to Asturias, regardless of the caller's location within Spain.
Technical and Regulatory Notes
Numbers with the 984 prefix are allocated to fixed-line services, typically provided by traditional PSTN operators as well as VoIP-based fixed telephony providers. The Spanish regulator, Comisión Nacional de los Mercados y la Competencia (CNMC), oversees the allocation and management of these numbers. While number portability allows subscribers to retain their 984 number when changing operators, the geographic significance remains tied to the original location. Callers should be aware that some VoIP services may display a non-geographic or alternative caller ID, but the dialed number remains a standard geographic number.