Spain has a cheap, competitive mobile market with the major networks and many lower-cost virtual operators. You choose between prepaid (prepago) — a pay-as-you-go SIM you top up, with no contract or commitment, ideal when you first arrive or for occasional use — and contract (contrato) — a monthly plan with more data and minutes, usually paid by direct debit and often bundled with home internet for the best value. To register any Spanish SIM you must provide ID (passport, and usually your NIE for a contract) — SIMs are registered to a person by law. You can keep an existing Spanish number when switching provider via portability (portabilidad). EU roaming rules mean a Spanish SIM works across the EU at no extra cost within fair-use limits. We sort mobile setup for expats as part of relocation support.
The Spanish Mobile Market
Spain's mobile market is competitive and inexpensive by Northern European standards, with strong 4G and growing 5G coverage across the country. There are the big national networks with the widest coverage and premium plans, and a large number of virtual operators (OMVs) that run on the major networks' infrastructure but offer cheaper deals — including some that market specifically to the expat community with English-language support.
Because there's so much competition, you can find very cheap prepaid SIMs and good-value contract plans, and there are frequent promotions. For most expats, getting a Spanish number is sensible early on: it's needed for everything from bank verification codes and delivery notifications to dealing with utilities and officialdom, and a local number is far cheaper than roaming on a foreign one long-term. Setting it up is quick — often the same day in a phone shop or online. We handle it for clients who'd rather not navigate the options and the Spanish paperwork.
Prepaid vs Contract
The core choice is between prepaid and a monthly contract:
| Option | How it works & who it suits |
|---|---|
| Prepaid (prepago) | Pay-as-you-go: buy a SIM, top it up, no contract or monthly commitment. Quick to get, easy to control spending, no Spanish bank account strictly required. Ideal when you first arrive, for short stays, or as a second/backup line. |
| Contract (contrato) | A monthly plan with more generous data and minutes, paid by direct debit from a Spanish account. Better value for regular use and usually bundleable with home internet. Needs your NIE and a Spanish IBAN. |
A common and sensible approach is to start with prepaid when you first arrive — you can get a SIM with just your passport and be connected immediately, before you've sorted your NIE and bank account — and then move to a contract (often bundled with internet) once you're settled, keeping the same number via portability. Prepaid suits those who want no commitment or are only in Spain part of the year; a contract suits residents who want the best value and one bill for phone and home internet. We advise on which fits a client's situation and set it up.
What You Need to Register
Spanish law requires every SIM to be registered to an identified person, so you can't get a fully anonymous SIM. What you need depends on the type:
- Prepaid SIM — your passport (and the SIM is registered to it). You can usually do this with just a passport, even before you have an NIE, which is why prepaid is the easy first step on arrival.
- Contract — your NIE, passport, and a Spanish bank account for the direct debit. Some providers may ask for proof of address.
The registration requirement means you'll always show ID when buying a SIM, and an unregistered SIM may be blocked. For a contract, the NIE and Spanish IBAN are the usual gatekeepers — which is why prepaid is the practical choice in the first days before those are in place. We make sure clients have the right documents and handle the registration, particularly for contracts where the Spanish paperwork and direct debit setup are involved.
Start with prepaid, switch to contract later
You can get a prepaid SIM with just your passport on arrival — instant connectivity before your NIE and bank account are sorted. Once settled, move to a contract (often bundled with internet) for better value, keeping the same number via portability. It's the smoothest path for new arrivals.
Bundling with Internet
The best value for most resident expats comes from bundling your mobile contract with home internet — and often more than one mobile line for a couple or family. Providers price these convergent bundles attractively because they want your whole household, so a combined internet-plus-mobile package is usually cheaper than buying each separately, with the convenience of one provider and one direct debit.
If you're setting up home internet anyway, it makes sense to look at the bundle that includes the mobile line(s) you need rather than contracting them separately. Families can add lines for each member; some bundles include generous shared data. The same contract cautions apply as for internet — check the minimum term, the post-promotion price, and any penalty — but the bundled route is generally the smart default for a settled household. We size the right combined package to a client's household and usage.
Keeping Your Number & Portability
If you already have a Spanish mobile number and want to switch provider — for a better deal or to join a bundle — you can keep your number through portability (portabilidad). The new provider arranges the transfer using your details, and the number moves across without you losing it; the process is free and usually quick. This means you're never locked to a provider by your number, so it's always worth switching if a better deal comes up.
You generally cannot port a foreign number into Spain — your UK, Irish or other home number stays with that country's system — so a Spanish number is a fresh one (people often keep their old foreign SIM/number on a cheap plan or eSIM for home contacts while using the Spanish number day to day). When switching Spanish providers, don't cancel the old SIM yourself before the port completes, as that can lose the number; let the portability process do it. We handle portability when moving a client between providers or into a bundle.
EU Roaming
Thanks to EU "roam like at home" rules, a Spanish SIM works across the EU/EEA at no extra cost within fair-use limits — so you can travel around Europe using your Spanish plan's data, calls and texts as if at home. This is a real convenience for expats who travel within Europe and means a Spanish SIM is genuinely useful beyond Spain's borders.
Two practical notes: fair-use policies mean roaming is intended for travel, not permanent use in another country, so there can be limits or surcharges if you essentially live elsewhere on a Spanish SIM; and roaming outside the EU/EEA (including, post-Brexit, in the UK on some plans) is not covered by these rules and may cost extra — check your plan's terms before travelling further afield. For ordinary European travel, though, your Spanish SIM just works. We can point clients to plans that suit their travel patterns.
How We Help
We sort mobile setup for expats. We advise on prepaid vs contract for your situation, make sure you have the right documents (passport, NIE, Spanish account), set up the SIM or contract, arrange the best-value internet-plus-mobile bundle for your household, and handle number portability when switching. It's part of our relocation and move-in support, dealing with providers in English, on a clear quote — provider charges are separate. Book a consultation to get connected.
Related Guides
Frequently Asked Questions
Choose between a prepaid (prepago) SIM you top up — quick to get with just your passport, no commitment, ideal on arrival — or a contract (contrato) with a monthly plan, more data and minutes, paid by direct debit and often bundled with home internet. To register any Spanish SIM you must show ID, as SIMs are registered to a person by law: a passport for prepaid, plus your NIE and a Spanish bank account for a contract. The market is cheap and competitive, and setup is often same-day. We advise on the right option and set it up for clients.
It depends on your situation. Prepaid (prepago) is pay-as-you-go with no commitment — quick to get with just a passport, easy to control spending, and ideal when you first arrive, for short stays, or as a backup line. A contract (contrato) gives more generous data and minutes, better value for regular use, and bundles with home internet, but needs your NIE and a Spanish bank account. A sensible path is to start with prepaid on arrival, then switch to a contract once settled, keeping the same number. We advise on which fits and set it up.
Spanish law requires every SIM to be registered to an identified person, so you always show ID. For a prepaid SIM you generally just need your passport — which is why it's the easy first step on arrival, before your NIE and bank account are sorted. For a contract you need your NIE, passport and a Spanish bank account for the direct debit, and some providers ask for proof of address. An unregistered SIM may be blocked. We make sure clients have the right documents and handle registration, especially for contracts.
Yes — you can keep an existing Spanish mobile number when switching provider through portability (portabilidad). The new provider arranges the transfer using your details and the number moves across without you losing it; the process is free and usually quick. This means you're never locked to a provider by your number, so it's worth switching if a better deal comes up. Don't cancel the old SIM yourself before the port completes, as that can lose the number — let the portability process handle it. We manage portability when moving clients between providers or into a bundle.
No — you generally cannot port a foreign number (UK, Irish, etc.) into the Spanish system; your home number stays with that country. A Spanish number is therefore a fresh one. Many expats keep their old foreign SIM or an eSIM on a cheap plan for home contacts and accounts that still use it, while using the Spanish number for day-to-day life in Spain. A Spanish number is needed for things like bank verification codes, deliveries and officialdom, and is far cheaper than roaming on a foreign number long-term. We help clients set up the Spanish number and advise on managing both.
Yes — under EU "roam like at home" rules, a Spanish SIM works across the EU/EEA at no extra cost within fair-use limits, so you can travel around Europe using your plan's data, calls and texts as if at home. Two caveats: fair-use policies mean roaming is for travel, not permanently living in another country on a Spanish SIM, so there can be limits if you essentially live elsewhere; and roaming outside the EU/EEA (including the UK on some plans post-Brexit) isn't covered and may cost extra. For ordinary European travel, your Spanish SIM just works. We can point clients to plans that suit their travel.
Generally yes — Spain has strong 4G coverage across the country and growing 5G in cities and many towns. The major networks have the widest reach, and the cheaper virtual operators run on their infrastructure so coverage is comparable. Coverage can be weaker in very remote or mountainous rural areas, which is worth checking if you're moving somewhere isolated (it also affects whether a 4G/5G router is a viable internet option there). For most towns, cities and the coast, coverage is reliable. We can advise on the best network for a specific location.
Yes — some operators market specifically to the English-speaking community with English-language support and billing, which makes setup and any later issues easier. The major networks generally operate in Spanish, though some offer English support. If dealing with a provider in Spanish would be stressful, an expat-oriented operator or our help arranging the contract removes that friction. We deal with providers in English on clients' behalf and can recommend operators with English-language support.