Area Code 866 – Alicante
The phone area code for Alicante is 866 (international format +34866). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 866
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Alicante
Geographic Coverage and Administrative Jurisdiction
The +34 866 numbering block is a geographic area code assigned to the province of Alicante, located in the Valencian Community of southeastern Spain. This code serves both the coastal tourist hubs and the inland administrative centers, including the provincial capital, Alicante city, as well as major municipalities such as Elche, Torrevieja, Benidorm, and Alcoy. The 866 prefix is part of the national numbering plan administered by the Comisión del Mercado de las Telecomunicaciones (CMT), now under the supervision of the Secretaría de Estado de Telecomunicaciones e Infraestructuras Digitales. It is allocated for fixed-line PSTN and VoIP services, and its geographic nature means that the tariff and routing are tied to the Alicante exchange area.
Dialing Formats and Caller Instructions
For domestic callers within Spain, the 866 prefix is dialed as a nine-digit national significant number (NSN) without the leading +34, for example, 866 123 456. For international callers, the full E.164 format must be used: +34 866 123 456. When dialing from a foreign country, the international access code (00 or +) is followed by the Spanish country code 34 and then the nine-digit number, omitting any trunk prefix. Local calls within the same province may be dialed using the full nine-digit number, as Spain does not use a trunk prefix (0) for domestic calls. Overlay considerations are minimal because the 866 code coexists with other Alicante codes (e.g., 96 for the province, 965 for Alicante city) but does not require ten-digit dialing for local calls; the national dialing plan mandates nine-digit dialing for all calls within Spain.
Technical and Regulatory Notes
From a technical standpoint, the 866 prefix is a geographic code, meaning that the number is associated with a physical location, but with the advent of number portability, subscribers may retain their 866 number even if they move to a different region or switch to a VoIP provider. However, the geographic significance remains for emergency services and for determining the applicable local tariffs. For businesses, having an 866 number can enhance local presence in Alicante, but it is not a toll-free number; callers are charged according to their own operator's rates for fixed-line calls. For VoIP users, the 866 prefix is routed over IP networks, but the geographic association still influences the interconnect agreements between operators.