Mobile without commitment in Belgium
Most Belgian SIM-only plans carry no minimum term, so you can leave month by month. Commitment normally appears only when a handset is bundled into the price and spread across a fixed period. Prepaid is the other commitment-free route and is the usual starting point for newcomers who do not yet have a Belgian bank account.
As of August 31, 2026, the risk on a commitment-free Belgian plan is not the exit charge but the order in which you do things. Sign with the new operator first and let it request the port; the old contract ends as a consequence. Cancel first and the number is released, permanently, before anyone can transfer it.
| Provider | Plan | Price | Key points | View plan |
|---|---|---|---|---|
 Hey!Partner VOO |
hey! mobile S | €5/month |
| View plan |
 DIGICheapest |
Mobile 7 GB | €3/month |
| View plan |
DIGI |
Mobile 30 GB | €5/month |
| View plan |
DIGI |
Mobile 40 GB | €7/month |
| View plan |
DIGI |
Mobile 60 GB | €9/month |
| View plan |
Prices and features surveyed on August 31, 2026. They may have changed since. Always check the offer on the provider’s website before signing up.
Prepaid or SIM-only subscription
Prepaid requires no bank domiciliation and no proof of address beyond the identification required at activation, which makes it the practical first SIM for someone who has just landed. You top up, credit expires according to the terms, and nothing recurs.
SIM-only subscription without a minimum term gives more data for the money and a monthly invoice, but generally needs a Belgian address and a bank account for direct debit. Most newcomers move across once the commune registration and the bank account are done.
Both are commitment-free in the sense that matters: you can stop. The difference is the paperwork at the start, not the exit.
Leaving cleanly
If you are keeping your number, do nothing with your current operator. Subscribe with the new one, give it your number and your existing contract reference, and the port is requested on your behalf. The old contract closes as part of the process.
If you are leaving Belgium and not keeping the number, cancel directly with the operator and ask in writing for the closing date and the final invoice amount. Direct debits have been known to continue after an informal cancellation by phone.
Where a handset instalment is running, it does not disappear with the airtime plan. Ask specifically what remains due on the device before you end the subscription, because the two obligations are separate even when they appear on one invoice.
Frequently asked questions
Are Belgian SIM-only plans really contract-free?
Most are sold without a minimum term and can be ended monthly, subject to the notice written into the contract. Commitment in the Belgian mobile market usually comes from a bundled handset paid off over time, not from the airtime plan itself. Check whether a device instalment is attached before assuming you are free.
What is the safest way to switch operator?
Sign with the new operator and let it request the number port, then leave the old SIM active until the transfer completes. Never cancel the old contract yourself first. That order is the difference between keeping a number you have given to your employer, your bank and your commune, and losing it.
Can I get a Belgian SIM without a bank account?
Prepaid, yes: it needs identification at activation but no domiciliation. A postpaid subscription normally requires a Belgian bank account for direct debit and often a registered address. Starting prepaid and converting later is the usual sequence for someone who has just arrived.
What should I do with my number if I leave Belgium?
Decide before you cancel. A Belgian number can be ported to another Belgian operator but not carried abroad. If you need it for two-factor authentication with a Belgian bank or administration, keep a cheap prepaid line alive rather than closing everything on your last week.