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eSIM for Belgium

Data for Brussels, Bruges, Ghent and Antwerp, installed before you fly. Belgium is on the Europe plan, so the same eSIM carries on to Amsterdam, Paris, Cologne and London by train. The fries, regrettably, do not travel as well.

Choose your plan

The Belgium plan covers Belgium only.

1 GB7 days1.49€$1.69£1.29CHF 1.493 GB14 days3.19€$3.69£2.79CHF 3.095 GB30 days4.39€$4.99£3.79CHF 4.19Best value10 GB30 days7.89€$8.99£6.79CHF 7.4920 GB30 days13.99€$15.99£11.99CHF 13.9950 GB30 days30.99€$35.99£26.99CHF 29.99
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Also on the Europe plan

38 other countries share the package with Belgium. A few of them:

AlbaniaMontenegroTürkiyeGreeceItalyGermany

Good to know

What's included, when it starts, and how to get connected.

Included countries
The Belgium plan covers Belgium only.
Local networks
In Belgium your eSIM connects to Proximus, Orange, and BASE — 4G/5G where the network offers it.
When validity starts
Your package starts when your phone first connects to a network at the destination — not when you install it. Crossing a border does not restart it.
Installation and activation
Install the eSIM while you still have internet — at home or on Wi-Fi. Installation does not start validity. If you already have a onesim eSIM installed, a new package is added to it — no second installation. Setup guide
Calls and texts
onesim is data-only. Calls and messages work over data in apps like WhatsApp or FaceTime; your usual SIM keeps your number.
Support and refunds
Message the onesim support team from the app or the website. If a package cannot be installed or used, the refund policy explains what applies. Refund policy
Travel notes

Small country, strong opinions.

Guild houses and the old post office tower on Ghent’s Graslei
Getting around

The airport train supplement costs more than the ride.

Brussels Airport’s station is under the terminal, and Brussels-Central is about 17 minutes away. Every ticket to or from it carries the Brussels Airport supplement, the old Diabolo fee: about €7 in 2025 and the same for everyone, discount or not. Flying in to ‘Brussels South’? That is Charleroi, 46 km away: bus A to Charleroi-Sud station, then about an hour on the train.

Driving

Foreign plates must be registered before they enter Brussels or Ghent.

The whole Brussels region is a low-emission zone, and so are Antwerp and central Ghent. Cars with foreign plates must be registered, free and online, before they enter Brussels (Dutch plates excepted) or Ghent. Since 1 January 2026 Euro 5 diesels are banned in Brussels: a warning first, then a €350 fine. The speed limit in most of the city is 30 km/h, too.

The meme

Manneken Pis is 55.5 cm tall, about the height of your cabin bag.

Brussels’ most famous statue is a bronze boy just over half a metre high, and the crowd in front of him is mostly people saying so. The one on the corner has been a replica since 1965; the original is in the City Museum on the Grand-Place. He owns around a thousand costumes and changes several times a week, on a published schedule.

Hot take

Bruges is a day trip. Ghent is a base.

Bruges has about 120,000 residents and some eight million visitors a year, and by noon the centre feels it. Ghent, under an hour away on the same line, has the Van Eyck altarpiece, a castle in the middle of town, a university and 270,000 people who actually live there, so the bars stay open after the tour groups leave. Sleep in Ghent; see Bruges early.

Food fight

Brussels waffles are for plates. Liège waffles are for walking.

The Brussels waffle is light and rectangular, made from a batter and built for toppings. The Liège waffle is a dense brioche dough studded with pearl sugar that caramelises in the iron, eaten plain on the street. The one buried in cream and strawberries is for photos. America’s ‘Belgian waffle’ was sold as the Bel-Gem at the 1964 World’s Fair because too few Americans could place Brussels.

Food fight

The fries are Belgian. Here is the case, awkward evidence included.

Start with the name. The story that American soldiers in the First World War called them French because the Belgians serving them spoke French is a legend: ‘French fried potatoes’ was already in an English cookbook in 1856. Belgium’s own origin myth, villagers in the Meuse valley frying potatoes when the river froze before 1680, rests on a manuscript nobody has ever produced. Even the Belgian food historian Pierre Leclercq concludes that the first ones were fried in Paris.

So much for who fried first. What Belgium did was turn them into a culture: thousands of fritkots — frituur in Flemish, friterie in French — serving fries fried twice, often in beef fat, in a paper cone with the sauce on top. Mayonnaise is the default; samurai and andalouse are how you order like a local. Flanders listed fritkot culture as heritage in 2014 and the French-speaking community followed in 2016. Even Scotland’s first chips were sold, in the 1870s, by a Belgian.

How to eat them: at a fritkot, not a restaurant, and standing up. Add stoofvlees, the Flemish beef stew made with beer, if you are properly hungry. Belgium got its beer culture onto UNESCO’s list in 2016; the fritkot has so far made it only onto the country’s own lists. A country that once took 541 days to form a government is in no hurry, and neither is the queue at the counter.

Belgium questions.

Answers about data, coverage and setup for Belgium.

Yes. Belgium is on the Europe plan, and so are the Netherlands, France, Germany and the United Kingdom, so the same package and allowance carry on across every border the trains from Brussels-Midi cross. The phone switches to a partner network in the next country within a minute or two. In tunnels and deep cuttings the signal can dip at speed, as it does on any SIM.

Still unsure?Ask us