Free eSIM for Belgium 
3 GB of free mobile data across Belgium — from Brussels' Grand Place to Bruges' canal bridges and the Ardennes forest roads. Install before you fly, step through Zaventem already online, and skip the Proximus stand near arrivals.
Free for new users · Credit card for identity verification only — never charged · Valid 3 days
Why an eSIM beats a Proximus prepaid
Belgium's 2017 anti-terror SIM law requires ID registration for every physical prepaid card — you'll hand over your passport at Proximus, Orange or Base shops and wait while they scan it into the national database. Tourist plans are fairly priced (Proximus Tempo at €15 for 10 GB) but useless if you land late or want to hop the Eurostar to Paris same-day. A 99esim profile bypasses the ID registration, activates in two minutes, and carries through to France, Netherlands, Luxembourg and Germany on the same plan.
- No passport scan into the Belgian national database
- Works in both Flanders (Dutch) and Wallonia (French) seamlessly
- Covers the short hop to Amsterdam, Paris, Luxembourg — all on one profile
- 3 GB handles a long weekend of Brussels + Bruges + Ghent
How Belgian networks handle 99esim
99esim's primary host is Proximus, the former Belgacom state operator, with by far the deepest coverage including the Ardennes and the North Sea coast. 5G is live across Brussels, Antwerp, Ghent, Liège and Charleroi, plus along the E19 and E40 motorways. Belgium is small and densely covered — expect 5G in most tourist cities and LTE everywhere else, including forested areas.
Arriving at a Belgian airport
Brussels Zaventem handles most international traffic; Charleroi is Ryanair's main hub and Antwerp is a small regional field. All have full 5G at gates. Your eSIM connects the moment airplane mode drops, which is critical if you're rushing to catch an SNCB train to Bruges or an Eurostar to London.
The train station is directly beneath the terminal — four trains per hour to Brussels Central in 17 minutes. Signal holds all the way, including through the short tunnel under the city.
Ryanair's Belgium hub, 45 km south of Brussels. Flibco shuttle to Brussels-Midi takes 60 minutes, full 4G along the E19. Also direct Flixbus to Lille, Paris, Amsterdam — all stay connected.
Compact business-focused airport, 4 km from Antwerp central. Bus 51 runs to Diamant station in 15 minutes with uninterrupted signal. Limited scheduled traffic — mostly CityJet and VLM.
Mainly cargo traffic but some passenger flights. The 57 bus from the terminal to Liège-Guillemins station takes 30 minutes. 4G holds through the industrial zones.
Coastal airport near Bruges — 25 km away. Mostly charter traffic. The coastal tram (De Kusttram) runs from Ostend all the way to the French border with full signal along the 68 km route.
Where your free eSIM works best
What 3 GB actually gets you in Belgium
Belgium is small, dense and eminently walkable — Maps and Translate dominate your allowance. Here's how 3 GB splits on a typical Brussels + Bruges + Ghent weekend:
Belgium-specific travel tips
Bilingual automatic handoff
Belgium has separate network configurations in Flanders versus Wallonia — same operator, different backhaul. Crossing between Antwerp and Mons on the E19, your phone may very briefly reregister, but Proximus handles it invisibly. You won't see a drop.
Brussels Metro and premetro
STIB's metro and premetro tunnels all have DAS — expect full 4G on lines 1, 2, 5, 6, plus the premetro tram sections. The shorter tunnels under Albert and Lemonnier stations are fully covered. Signal is strongest on line 2, the circular route.
Ardennes forest roads
The E411 through the Ardennes toward Luxembourg stays connected throughout on Proximus. Minor roads deep into the forest (around La Roche, Bouillon, Spa) can thin to 3G or drop entirely in dense tree cover. GPX-offline your hiking routes if you're going off-trail.
Eurostar and Thalys handoffs
Belgium's the convenient node for the Eurostar (to London) and Thalys (to Paris, Amsterdam, Cologne). Cross-border trains hand off between operators at the actual border. The Channel Tunnel section drops all mobile signal for about 20 minutes — this is physics, not the eSIM.
Coastal tram De Kusttram
The 68 km tram from De Panne to Knokke is the longest tram line in the world. Full LTE coverage along the route — you can ride end to end and stay online. Great for day-trips from Bruges or Ostend along the Belgian coast.
Travelers who used 99esim in Belgium
"Three days in Brussels, Bruges and Ghent. eSIM never skipped. The Bruges canal tour had great signal — I live-streamed half of it to my parents in New Delhi."
"Drove from Brussels down through the Ardennes to Luxembourg and back. Signal held on every stretch except 10 minutes on a forest road near Bouillon."
"Eurostar from Brussels to London. eSIM worked to the tunnel entrance, went dark in the tunnel as expected, and reconnected on the British side automatically."
Frequently asked — Belgium edition
Does the eSIM work in the Brussels Metro?
Yes on all four metro lines plus the premetro tram tunnels. STIB installed DAS on the main metro lines 1, 2, 5 and 6 with a rollout completed in 2019. Line 2 (the ring) has the strongest signal; all tunnel sections now have reliable 4G.
Will I need to register my passport like for a Belgian prepaid SIM?
No. Belgium's 2017 anti-terror SIM registration law applies only to physical SIM cards sold inside Belgium. A 99esim profile is issued internationally and is exempt — you install the QR code and it activates without any registration step.
Can I use it on the Eurostar to London?
Up to and out of Brussels-Midi, yes. Through the Channel Tunnel you'll lose signal for about 20 minutes — that's the tunnel itself, no mobile infrastructure inside. On the UK side your 99esim reconnects automatically since the plan covers the UK on a separate but included basis.
Does it work in the Ardennes?
In the main towns — Bouillon, La Roche-en-Ardenne, Spa, Durbuy — yes, with solid Proximus 4G. Hiking trails deep in the forest or along the Semois gorges can drop signal entirely. Download offline maps for any remote hike and don't rely on live weather updates.
Is 5G included?
Yes. Proximus and Orange Belgium have extensive 5G across Brussels, Antwerp, Ghent, Liège and Charleroi. If your device supports it, the eSIM uses 5G automatically wherever available. Data counts the same rate as 4G.
What happens after the 3 GB?
Top up in the 99esim app in seconds — Belgium add-ons start at around €2.99 for 1 GB. No auto-renewal, no card charge unless you actively top up. Your 30-day window isn't affected either way.
Free eSIM in other European countries
Your 3 GB works in all 39 countries. Here are a few more popular destinations:
See all 39 countries →
Ready to claim your free 3 GB in Belgium?
Install the 99esim app, create a free account, and your data is live in about 90 seconds.