You Need a French Number to Get a French Number
The order nobody tells you about
Every arrival guide tells you to buy a French SIM card when you land. None of them tell you the order in which things have to happen, and the order is the problem. Students, new arrivals and anyone moving to France for more than a holiday hit the same wall in the same week, and almost nobody writes it down.
This piece maps that wall, sets out the four ways to be contactable in France, and says plainly which suits which situation. Including the situations where the answer is not us. There is a free white paper version at the end that you can download and keep.
TL;DR
A forfait, the normal French mobile contract, is by far the best value for a long stay. It needs a RIB. A RIB needs a French bank account. A bank account needs proof of address. Proof of address needs accommodation. And accommodation applications ask for a French mobile number. The chain closes on itself. The only route that breaks it is one that issues the number before you arrive, which is why a france esim with the number issued before you fly exists at all. Once you have a bank account, switch to a forfait, because nothing a travel product sells can beat it on price.
The chain
Work backwards from the thing you actually want:
France eSIM with a real +33 number
Unlimited calls and SMS, data included. QR code by email — active in minutes. Official Bouygues Telecom partner.
20GB · €19,90 ›30GB · €29,90 ›60GB · €34,90 ›
★ 5.0 on Google · 12 months to activate · 3-month refund guarantee
A forfait needs a RIB. A RIB needs a French bank account. A French bank account needs proof of address. Proof of address needs accommodation confirmed. And the accommodation application asks for a French mobile number.
You need a French number to get a French number. You cannot reach the cheap, sensible, long-term option without first holding the thing it would have given you.
This is not hypothetical. Student accommodation platforms, letting agencies and private landlords all ask for a contact number, and a foreign one reduces your chance of a reply. French landlords and agencies do not ring international numbers as a matter of habit rather than policy, which is considerably harder to argue with than a rule. The same effect shows up in hiring, which is why why a local number changes who calls you back is worth reading if you are job hunting as well as moving.
The four ways to be contactable
| Prepaid SIM | Forfait | Travel eSIM | Roaming | |
|---|---|---|---|---|
| Arrange before you fly | No | No | Yes | Yes |
| Identity document | Yes, at the counter | Yes | No | No |
| French address | No | Yes | No | No |
| Bank account / RIB | No | Yes | No | No |
| Earliest you can have it | Day you arrive | Weeks, after the bank account | Before departure | Now |
| When you learn the number | After the SIM is in a phone and used | On signup | At purchase | It is your own |
| Typical cost | €5–20 / 30 days | €10–20 / month | €16–50 / 30 days | Free from the EU, costly from the US, Canada, Australia |
| Suits | The first weeks | A full academic year | Before arrival and the first weeks | Short exchanges, EU students |
What the operators themselves say
Every requirement below was read from the provider’s own published pages in October 2026. Prices move. The structural requirements rarely do.
Prepaid is genuinely open to everyone. A French-language advice source for foreigners in France puts it without qualification: whether you are a tourist, an asylum seeker, a student or undocumented, you can get a SIM card in France, and a prepaid card is the simplest route because it is open to all. No proof of address is required for prepaid. That requirement belongs to contracts, and the detail of whether a french number needs a french address trips up more arrivals than any other part of this.
You still have to be in France, with a document. France permits no anonymous mobile line. Lebara’s registration page is titled Enregistrement legal and states what you need to complete it: your SIM card holder, and a valid identity document.
And you are not told your own number in advance. That same form asks for your mobile number and describes it as the one received by SMS on first use of the SIM card. The card is posted, inserted, used, and only then does the number exist for you. For anyone with a form to complete before they travel, this is the single most important fact on this page, and it is covered in more depth in what a posted french sim card actually gets you.
Ordering online is not always a route in. SFR’s prepaid page states that buying a prepaid offer requires you to already be a customer holding an SFR La Carte SIM. Their online prepaid offers are top-ups for people who already hold the card, not a way to start from scratch.
Delivery exists, but it goes to an address. Lebara posts a free SIM within five working days. Their prepaid plans run 30 days from €7,99 for 30Go, €9,99 for 200Go and €13,99 for 350Go on the SFR network. SFR’s own prepaid plans run 31 days, from €4,99 for 10Go up to €19,99 for 350Go.
What each route costs across a full year
Monthly prices hide the real difference, so here it is annualised for a student staying a full academic year of roughly nine months.
A forfait at €15 a month comes to about €135 across nine months, with unlimited domestic calls and generous data throughout. Prepaid at €10 per 30 days comes to about €90, but with smaller data allowances and a manual top-up every month. A travel plan at €30 per 30 days would come to €270, which is why nobody should run one for nine months.
The honest conclusion from those three numbers is that the long-term answer is a French contract, and the travel plan is a bridge rather than a destination. What the bridge buys you is the six to twelve weeks at the start when the contract is not yet available to you, and the chain above is still closed.
Europe eSIM with a real +33 number
One eSIM across 39 European destinations. Unlimited calls and SMS, data included. QR code by email — active in minutes.
20GB · €19,90 ›30GB · €29,90 ›60GB · €40,00 ›
★ 5.0 on Google · 12 months to activate · 3-month refund guarantee
It is also worth knowing what happens at the far end of a short plan, because what happens when a france plan reaches its end catches people who assumed the number would simply carry on.
What to do, and when
Before you fly. Check your handset is unlocked and, if you want an eSIM, that it supports one. Most iPhones from the XS onward and most recent Samsung, Pixel and flagship Android models do, but a carrier-locked phone will refuse a second profile. Then decide whether you need a French number for any form you must submit before departure. If you do, that narrows you to one column of the table above.
Week one. If you did not arrange a line in advance, a prepaid SIM from a shop, tabac or supermarket takes minutes and needs only your passport. Keep the receipt and the plastic holder, because you will need the card number to register.
Weeks two to twelve. Open a bank account once you have proof of address. Several French banks run student accounts with simplified requirements. Once the RIB exists, the forfait becomes available to you.
Once settled. Move to a forfait, and run it alongside your home number if you still need that active.
Before you leave France. Prepaid and travel plans lapse on their own. A forfait is a contract and has to be cancelled, so check the notice period on the day you sign rather than the day you leave.
Keep your home number for your bank and for government
This matters enough to say on its own. Banks tie security codes to the number already registered against your identity, and so do government services. Moving those to a new French number, or expecting them to arrive on one, is the wrong approach and can lock you out of your own accounts at the worst possible moment.
Keep your existing number active, in dual SIM or on your old handset, for anything to do with banking, tax, healthcare or government portals. Use a French number for everything local: accommodation, the university, transport and delivery apps, marketplaces, appointments, and anyone who simply needs to ring you.
There is a second, technical reason. National SMS short codes, the five-digit senders some domestic services use, are country-scoped and do not reliably route to a number registered in another country. Most ordinary sign-ups use standard international SMS and are unaffected, but a service sending from a short code may not reach a foreign line. Test anything critical before you depend on it. Roaming between EU countries is governed by the single market rules, and the European Commission sets out the current position on its roaming policy pages.
Where Europe Number fits, and where it does not
We publish this and we sell one of the four options above, so here is the honest position.
A travel eSIM with a number included is the strongest way to start, and it is the only option in the table that gives you a French number before you leave home. Every other route requires you to already be in France. If a form wants a French mobile number while you are still packing, that is the only column that answers it. The number is issued at purchase, so it can go on an accommodation application weeks before departure, and the line runs on the Bouygues Telecom network, one of France’s four national networks, so it behaves like a real French mobile line rather than an app number.
The limits, stated plainly. Plans run 30 days and do not currently renew or extend, so if you need longer you buy again and the number changes. That makes it right for the start and wrong for the long haul.
For a full academic year, a French forfait is better value than anything we sell. Once you have a bank account, move to one. We are not the answer to that part of the problem and there is no sense pretending otherwise.
Download the white paper
The full version of this, with the complete comparison table and the sourced operator quotes, is published as a free white paper. No registration, no email required. Download You Need a French Number to Get a French Number (PDF), checked October 2026 and reviewed quarterly. Print it, forward it to anyone arriving in France, or pass it to a study abroad office.
Frequently Asked Questions
Why do I need a French number before I can get a French number?
Because the best-value option depends on things you cannot have yet. A French mobile contract needs a RIB, which needs a French bank account, which needs proof of address, which needs confirmed accommodation, and accommodation applications ask for a French mobile number. The only way to break the chain is a route that issues a number before you arrive in France.
Do I need a French address to get a prepaid French SIM?
No. Proof of address belongs to contract plans, not prepaid. A prepaid French SIM is available to anyone, including tourists and students, but you do have to be physically in France and present a valid identity document, because France permits no anonymous mobile line.
When do I find out my French phone number?
On a posted or shop-bought SIM, only after the card is in a phone and has been used. Lebara’s own registration form describes the number as the one received by SMS on first use of the SIM card. A travel eSIM with a number included issues it at the moment of purchase, which is the difference that matters if you have forms to complete before you travel.
What is the cheapest option for a full academic year in France?
A French forfait. At roughly €15 a month it comes to about €135 across nine months with unlimited domestic calls. No travel product beats that over a full year. The catch is that you cannot sign up until you have a French bank account, so most people need something else for the first six to twelve weeks.
Should I move my bank security codes to my French number?
No. Banks and government services tie security codes to the number already registered against your identity. Keep your existing number active, in dual SIM or on an old handset, for anything financial or governmental, and use a French number for local life: accommodation, the university, transport apps, marketplaces and callbacks.
Is the white paper free to share?
Yes. It is free to download, print and forward, with no registration or email required, and it may be reproduced with attribution. It carries the date it was last checked and is reviewed quarterly.
