Short answer: yes, for a while. On a cancelled line, incoming texts usually stop as soon as the carrier deactivates the SIM, but some service messages keep arriving for a few hours or a few days. On a prepaid SIM with no credit or a line suspended for non-payment, receiving often still works while sending is blocked. And the real trap lies elsewhere: your old number can be reassigned to someone else, with your verification codes going along with it.
Updated 7 November 2026.
It is a very common situation, yet one that is poorly explained. You switch carriers and keep an old SIM in a drawer "just in case". You have a second prepaid line with not a cent of credit left. You cancelled a plan three weeks ago and the phone still goes beep now and then. Or the opposite: you are waiting for a login code on a line you thought was active, and nothing arrives.
Behind these cases lies one simple technical rule — receiving a text and sending one do not depend on the same permissions at all — and one administrative rule that creates genuine security incidents: a French mobile number is not switched off for life, it goes back into the carrier's pool.
Is receiving a text really free, even without a plan?
Yes, as far as your bill is concerned: in France, receiving a text is never charged to the recipient on a mainland line. It is the sender — or the company sending the message — that pays for delivery. Your plan "uses up" nothing when a message comes in.
That is why a prepaid SIM with zero euros of credit usually keeps receiving: there is nothing to debit. The carrier blocks what costs money (outgoing calls, outgoing texts, data) and lets through what costs the subscriber nothing.
Watch out for two exceptions that come up often in readers' questions:
- Incoming premium-rate texts do exist, as part of an SMS+ subscription taken out on a short code: in that case, it really is the message received that triggers the charge. That is exactly the mechanism described in our article on premium-rate texts that show up on your bill. Without an active line, that charge has no vehicle any more: the subscription effectively stops, but not necessarily the debt already incurred.
- Outside France, receiving a text remains free within the European Union thanks to the roaming regulation; elsewhere, it is receiving MMS and data that can cost money, not the text itself.
Why does a suspended line still receive texts but no longer send any?
Because the carrier suspends the paid services first. A "suspended" line (non-payment, customer request, temporary suspension after a lost phone) generally remains registered on the network: the SIM authenticates, the number still exists in the subscriber database, so incoming messages find a destination.
In practice, the cut-off happens in stages, typically in this order:
| Stage | Outgoing calls/texts | Incoming texts | Number status |
|---|---|---|---|
| Prepaid credit used up | Blocked (except emergencies) | Generally received | Active |
| Suspension for non-payment | Blocked | Often received for a few days | Active, in collections |
| Cancellation takes effect | Blocked | Stop | Released, in quarantine |
| Number reassigned | — | Go to the new holder | Active, different person |
The key point: between the signed cancellation and the actual cut-off, several days often go by. And in that limbo, you can still receive messages — including verification codes — on a line you already consider dead. If you are preparing a carrier switch, that is exactly the window in which to tidy up your accounts.
Conversely, if you are waiting for a code that never arrives on a line that is perfectly active, the problem lies elsewhere: filtering, message centre, full SIM memory. The full diagnosis is set out in our guide on texts and verification codes that never arrive.
Can a SIM without a plan be used as an "inbox"?
Partly, and it is a bad idea for anything sensitive. The practice exists: keeping an old SIM in a secondary phone to receive texts sent to a number you no longer want to use actively. Technically, it works as long as the carrier does not cancel the line for inactivity.
And almost all prepaid cards have a validity period: beyond a certain time with no top-up and no billed usage, the line is deactivated and the number reclaimed. Terms vary from one carrier to another and change over time — you need to read them on the official page of the offer (Orange, SFR, Bouygues Telecom, Free Mobile) rather than rely on a general rule.
If you are determined to keep a "receive only" line:
- Note the date of the last top-up and set a reminder before the deadline.
- Top up the minimum amount required by the offer, even without using it — that is the act that extends validity.
- Let the phone register on the network from time to time: a SIM never switched on for months is the textbook profile of a purged line.
- Plan for a reliable power supply for that second device; a multi-device charging station prevents the classic backup phone that has been dead for six weeks.
- Leave no bank account, no primary mailbox and no login identifier on it.
This secondary-line approach has a genuine compartmentalising use, described in our article on the second number reserved for everything that is not your close circle. But secondary does not mean neglected: a forgotten line is still an attackable line.
What happens to my old number after cancellation?
It goes into quarantine, then returns to the carrier's commercial pool. The French mobile numbering plan is a public resource managed by Arcep, which allocates it in blocks to carriers; they in turn assign it to their subscribers and take it back when the line ends. The general framework can be consulted on the Arcep website, on its pages devoted to number management.
So there is no such thing as a number that is "yours" forever: there is a number assigned to you for the duration of your contract. After a cooling-off period — meant to stop the new holder from receiving the previous one's calls — the number can be reassigned to another customer.
The consequences are very concrete, and we see the symptoms in readers' questions:
- a new holder receives the appointment reminders, the loyalty follow-ups, sometimes the banking notifications of the previous one;
- platforms that use texts as an identifier keep sending codes to the number, not to the person;
- whoever inherits the number can, without hacking anything, trigger a "forgotten password" on an account still linked to it.
It is the exact mirror image of the phenomenon described in texts meant for the previous owner of a number or a phone. Except that this time, you are the previous owner.
Which accounts should you detach before letting a line die?
All those that use texts as proof of identity. The sorting rule is simple: if a platform can reset your access using a code sent by text, that number is a key to your account. Letting it go without replacing it is like leaving a key in the door.
To do before the cut-off, in this order:
- Banks, insurers, payment services. Change the strong-authentication number in every customer area, before cancelling. Once the line is cut, validating that change becomes a long support process.
- Email accounts and Apple/Google accounts. These are the pivot accounts: whoever controls them controls everything else. Replace the recovery number and check the backup addresses.
- Two-factor authentication. Switch from "code by text" to an authenticator app, and print or write down the backup codes. Keeping them off the phone, in a password notebook stored somewhere safe or in a lockbox, stops you losing everything if the device disappears.
- Messaging apps tied to the number (WhatsApp, Signal, Telegram). Migrate the account to the new number from the settings, before the cut-off: afterwards, code validation is no longer possible.
- Everyday services: deliveries, doctor, pharmacy, schools, subscriptions. Less critical, but these are the ones that will send texts to the next person.
- Back up anything useful. Export the conversations worth keeping, then store them externally: an encrypted USB stick or a small external hard drive is enough, and you no longer depend on a phone being switched on.
If you are changing phone at the same time as carrier, our article on which texts to save, erase and never migrate completes this list on the device side.
What if I get a text on a line I thought was dead?
Two explanations, and neither is magic. Either the line is not yet cancelled technically — credit used up, suspension, cancellation still being processed — or the message did not come in over the mobile network.
That second case is common and misleading:
- An RCS or app message arriving over Wi-Fi: Google Messages, WhatsApp and Signal work without an active SIM as soon as the account is already open on the device. The screen looks like a text, but it is not one.
- A message stored on the SIM or in the phone's memory for months, resurfacing after an update or a restore.
- A phone still paired with a tablet or a computer, displaying messages received on another line.
Finally, if the message asks you to "reactivate your line", to "pay €1.99 to avoid cancellation" or to click to "keep your number", treat it as a smishing attempt. Cancellations are handled in your customer area or by post, never via a link received in a message. Forward the text to 33700 — free of charge, a service run by the carriers and described on the scheme's official page — and check your line's status from the carrier's app, not from the link. Our dedicated page on reporting to 33700 sets out the exact procedure, and our article on what happens to a report explains what the carriers do next.
How can you keep a number without keeping an expensive plan?
By keeping the line active at minimum cost rather than letting it die. If your number is still the identifier for an important account, an entry-level offer at a few euros a month or a prepaid card topped up regularly costs infinitely less than losing access to a bank account.
Three options, to be compared against each carrier's official terms:
| Option | Benefit | Limitation |
|---|---|---|
| Entry-level plan | Fully active line, secured number | Monthly cost, even with no usage |
| Topped-up prepaid card | Very low cost, receiving preserved | Limited validity, needs watching |
| Porting to a new carrier | The number follows you, zero interruption | Requires a contract elsewhere |
Number porting is the most frequently forgotten tool: instead of cancelling and then taking out a new line, ask for your number to be ported using your RIO code (obtained by calling 3179, free of charge). The old line is then cancelled automatically and the number is never released. It is the only method that guarantees no stranger will receive your verification codes.
And as for the SIM you take out: do not just throw it away. A SIM card holds contacts and sometimes messages. A shredder that handles cards, or simply a cut straight across the chip, is enough to make it unreadable.
Frequently asked questions
Can you receive a text with no credit on a prepaid card?
Yes, in most cases. Receiving a text is not charged to the recipient in France, so it generally remains possible even without credit, as long as the carrier has not deactivated the line for inactivity or expiry of validity.
How long does a number stay unusable after cancellation?
There is a cooling-off period before reassignment, set by the carrier within the framework defined by Arcep. That period is counted in months, not years: assume your old number could belong to someone else within the following year.
Are my texts still accessible after the line is cancelled?
Yes, those already stored in the phone or in a backup. The network does not keep your messages for you: only the device and your backups hold on to them. Export what matters before cutting the line.
Could my old number be used to hack my accounts?
Indirectly, yes. If an account still accepts a reset by text to that old number, whoever inherits it can trigger a "forgotten password" and receive the code. That is why detaching accounts must be done before the cut-off.
Can a line without a plan still call 112?
Yes. European emergency numbers remain reachable from a mobile registered on a network, even without credit. A fully cancelled SIM, on the other hand, offers no guarantee any more: do not rely on an old drawer phone as your emergency phone.
To go further on identifying the senders that keep writing to you after a line change, our pages short codes and numbering and texts received online list the families of senders and their uses, and our article on decoding an unknown sender gives the method to apply message by message.
