Numbers with prefix 6 in Spain
In Spain's numbering plan, 6 identifies servicios móviles compartidos por varios operadores. Its cost follows the stated cost class; the digits alone do not identify the caller.
Search a number with prefix 6
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 6
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 6
Numbers starting with 6 are mobile lines in Spain. They are the most common source of unwanted sales calls and telemarketing. If you do not recognise a caller on this prefix, search it on NoCall before calling back.
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.