Numbers with prefix 104 in Spain
En el plan español, 104 identifica códigos de selección de operador; el coste depende de la clase indicada y no del aspecto aislado del número.
Search a number with prefix 104
Search a phone number or a company name (Iberdrola, Movistar and Vodafone...) to check if it has been reported as spam.
No numbers reported with prefix 104
We do not have public reports for this prefix yet. Try searching a full number or submit a report if you just received a suspicious call.
About numbers 104
Numbers starting with 104 are landlines in Spain. They are assigned geographically. Sales calls from landlines are common, especially from telecom and energy companies.
Official source and review
Secretaría de Estado de Telecomunicaciones e Infraestructuras Digitales · Document: 2021-02-18 · Reviewed: 2026-08-09
A prefix describes an official allocation. Portability and caller-ID spoofing mean it cannot identify the caller on its own.