Telecom Provider for Expats: What to Choose in Belgium

In Belgium, a newcomer should split two decisions: mobile, which can be sorted in an hour with a registered SIM card, and fixed internet, which needs an address, a Belgian bank account and one to three weeks of waiting. Treating both as a single purchase is how people end up stuck.

A telecom provider for expats is not a separate category of operator: there is no "foreigner" offer in Belgium. In practice, it describes the journey of a newcomer with no active national number, no Belgian account and no billing history, facing operators built for settled residents. Those three gaps dictate the order of operations.

What comes first when you arrive in Belgium: the SIM or the internet?

The SIM. A prepaid card can be bought and activated in a shop on the day you land, with nothing more than a passport, whereas a fixed internet subscription assumes a validated address and a Belgian bank account. Mobile connects you immediately; fixed can wait.

That order has a direct consequence for data. During the first two or three weeks, your phone is your main connection: admin errands, flat hunting, calls to operators. A 5 GB SIM disappears fast. Aim for at least 20 to 30 GB in the first month, and downsize later.

Can you keep your foreign number in the first months?

Yes, but that is not portability. A foreign number can never be transferred to a Belgian operator: you keep your original SIM in roaming, alongside a Belgian number. A dual-SIM phone or an eSIM makes that double life painless.

EU roaming works well for a few weeks, then runs into fair-use rules: beyond a stable presence of several months outside your home country, the operator can charge extra or cut the data. Past four months on the ground, a Belgian SIM is simply cheaper.

Do you need a Belgian bank account to take out a subscription?

For a post-paid subscription, yes, almost always. Belgian operators ask for a domiciliation, meaning a direct debit from a Belgian account, on top of an ID document and often proof of address. It is the main bottleneck of the first weeks.

The blockage makes sense from the operator's side: with no Belgian billing history and no debitable account, it cannot secure payment. There is no clean workaround. The solution is chronological: open the Belgian account, register your arrival at the commune, then subscribe. In the meantime, prepaid or a no-commitment offer bridges the gap.

Which SIM card, and which documents to register it?

Any Belgian SIM, as long as you register it. Since 2017, prepaid anonymity has been abolished: every card must be registered to an identified person, via a Belgian ID card, an EU identity card or a passport (IBPT). An unregistered SIM ends up blocked.

Two routes exist, and only one is realistic on arrival. In store, the seller registers the card on the spot in a few minutes, with your passport: that is the route that works on day one. Online, registration usually goes through the Belgian eID and a card reader, which you do not have yet. At Proximus, Orange or BASE, registration done during an online purchase or top-up stays valid for 18 months.

Which mobile operator should you choose in the first months?

One that runs on the Proximus network, without the Proximus price. DIGI, Scarlet, hey! and Mobile Vikings ride that network and charge far less: the coverage is the same, the bill is not. For a newcomer with no long-term commitment, it is the best trade-off.

The 2026 Belgian prices show it. DIGI starts at €3/month for 7 GB and offers 60 GB at €9, with no promotional price that jumps later. hey! lists €5/month for 15 GB. Scarlet runs from €8 (5 GB) to €18 (50 GB, unlimited calls). Mobile Vikings asks €15 for 30 GB. Against them, a comparable plan at Proximus, Orange or BASE often sits €10 to €20 higher, with price rises applied in January 2026 at Orange (+€2 to €3/month, according to Test-Achats).

Prices gathered in 2026 (Test-Achats, CallMePower, operator websites). All these plans include calls and texts within Belgium.

Prepaid or subscription for a one-year stay?

Prepaid for the first month, subscription afterwards. Prepaid asks for no Belgian account and no proof of address, but its cost per gigabyte is the highest on the market: past a few top-ups, you pay two to three times the price of an equivalent plan.

As soon as the Belgian account is open, switch to a no-commitment subscription. You keep the Belgian number you got on prepaid thanks to portability, which is free and supervised by the IBPT. In practice: prepaid SIM on arrival, a €5-9/month plan three weeks later, same number.

Which internet provider suits your address and your lease?

The one your address allows, not the one you prefer. In Belgium, the available technology (cable, VDSL, fibre) depends on the building, sometimes on the flat. In Brussels and Wallonia, VOO and Proximus dominate; in Flanders, Telenet; fibre remains a minority, around 20 to 30 % of homes. The brand comes after the eligibility check, never before.

The lease decides the rest. For temporary housing or a six-month flatshare, a no-commitment offer, or even a 5G box, avoids cancellation and line-transfer fees. For a three-year lease, a classic internet pack is cheaper per month. Our comparison of no-commitment internet in Belgium details the gaps, and our guide on cable or VDSL depending on your address explains why two flats on the same street do not get the same offers.

What can you do while waiting for the installation?

Tether from your phone, quite simply. A 30 to 60 GB plan comfortably covers two to three weeks of light remote work and admin, with no extra hardware. It is cheaper than renting a 4G box for a month.

Just check that tethering is included: it is with most Belgian operators, but some entry-level offers limit it. If you work remotely full time, take the most generous plan in the first month and cut it back later. No-commitment plans make that adjustment free.

The real cost of the first three months

Count on €60 to €120 for the telecom side, hardware excluded. The breakdown matters more than the total: that is where the fees no advert shows are hiding.

Month 1: prepaid SIM (€5 to €20 depending on the top-up) and tethering from your phone. Month 2: a no-commitment mobile plan (€5 to €15/month) once the Belgian account is open, plus the internet order, with activation or installation fees often billed at €40 to €60 and not refunded if you cancel quickly. Month 3: your first full month of fixed internet, between €35 and €60 depending on the offer and the promotion. Watch that promotion: the entry rate typically climbs back after 6 or 12 months, and it is the post-promo price you should compare.

To compare plans beyond the first months, see our ranking of the cheapest mobile operator in Belgium and our guide to which internet provider to choose. The prepaid registration rules and number portability are published by the IBPT, the Belgian telecom regulator.