Business phone numbers in Spain

Spain runs a 9-digit numbering plan with geographic numbers keyed to a NIF and matching address, plus mobile numbers on 6xx/7xx. Foreign businesses can typically get a 900 toll-free number with just tax and company documentation, all under a same-day porting standard.

Number types in Spain

Type	National format	E.164	Notes
Local	91 123 45 67	+34 91 123 45 67	Geographic prefixes historically start 9 (91 Madrid, 93 Barcelona); 8-series added as 9-series capacity tightened, as of July 2026.
National	901 123 456	+34 901 123 456	901/902 shared-cost numbers are banned for basic-service sectors (utilities, insurance, transport, healthcare) since December 2020.
Mobile	612 345 678	+34 612 345 678	9-digit numbers, prefixes 6xx and 7xx.
Toll-free	900 123 456	+34 900 123 456	Free to caller. Looser address requirements than geographic numbers, as of July 2026.

Porting

CNMC regulates porting under its administrative procedure specification, executed via operator associations. Since the 2022 telecoms law reform, both fixed and mobile ports complete in 1 business day, with technical cutover usually run overnight between 02:00 and 06:00 to limit disruption, as of July 2026.

CNMC was reviewing the porting process (consent documentation, joint fixed and mobile porting flows) into 2026, so expect continued tightening of documentation rules rather than a longer wait.

A geographic number generally needs an address matching the number's city or area code; toll-free 900 numbers have looser requirements.

Requirements

·A geographic Spanish number generally needs a NIF (or NIE for a foreign individual), a matching local address, and company registration documents, with proof of address typically under 6 months old, as of July 2026.
·900 toll-free numbers can generally be registered by a global company without a matching local presence, needing only NIF and company documentation.
·This KYC detail reflects common carrier practice rather than a single published CNMC rule, so verify with the specific provider before treating it as absolute.

Compliance notes

·Emergency number is 112 (EU-wide), free from any device including VoIP. Nomadic VoIP numbers must route 112 while the user is in Spanish territory, as of July 2026.
·Call recording by a participant is lawful under Constitutional Court doctrine (Article 18.3 CE covers only third-party interception). Business recording still needs a GDPR legal basis and compliance with Organic Law 3/2018.
·901/902 high-tariff numbers are restricted for basic-service sectors since December 2020, though not abolished outright for other uses.

Regulatory details verified July 2026 and re-checked quarterly. wlur offers numbers in Spain; add one from the app in about a minute.

Frequently asked questions

Can a UK company get a Spanish phone number?

Yes, most easily for a 900 toll-free number, which needs only a NIF and company documents. A geographic number typically needs a matching local address too, as of July 2026.

How long does porting take in Spain?

Both fixed and mobile ports complete in 1 business day under CNMC's current standard, with cutover usually done overnight.

Is call recording legal in Spain without telling the other party?

A participant recording their own call is lawful under Spanish constitutional doctrine. But businesses still need a GDPR legal basis and must handle the recording under Organic Law 3/2018.

Can a business still use 902 numbers?

Yes for general use, but basic-service sectors like utilities, insurance and healthcare have been banned from using 901/902 numbers since December 2020.