5G in Belgium: Which Operator Covers Best?

In Belgium, Proximus has the best 5G coverage in June 2026: Opensignal's March 2026 report ranks it first in 12 of 15 categories. But Orange and Telenet/BASE follow closely, and the real winner depends on the metric measured and on your address. Here's how to decide.

5G is the fifth generation of mobile network: more speed, lower latency and better handling of simultaneous connections than 4G. In Belgium, three operators run their own 5G network — Proximus, Orange and Telenet/BASE — and a fourth, DIGI, has been building its own since 2025. MVNOs (DIGI on Proximus, hey! on Orange) reach 5G through these host networks.

Which operator has the best 5G coverage in Belgium?

Proximus leads Belgian 5G in June 2026. The Opensignal report of March 2026 ranks it first in 12 of 15 categories, including 5G experience, coverage and consistency. Orange and Telenet/BASE stay very close and win in certain areas.

Opensignal bases its verdict on billions of measurements collected from users' smartphones: download speed, video quality, latency, network availability. That is the experience actually lived, not theoretical coverage on a map. Proximus also takes the title of fastest 5G connection in the country there.

Belgian outdoor 5G coverage passed 87% in 2026, led by Proximus (Telecompaper, 2026). In practice, a Proximus subscriber in Brussels or Antwerp gets 5G across nearly all outdoor areas; in rural Wallonia, coverage stays patchier, across all operators.

Proximus, Orange or Telenet: why do the rankings contradict each other?

Because they don't measure the same thing. Opensignal looks at speed actually experienced, Test-Achats aggregates user tests, while Astel and the IBPT mainly count the percentage of territory covered. Three methods, three possible winners.

In late 2025, Astel ranked Telenet/BASE first for 5G coverage, ahead of Proximus. That same year, Test-Achats crowned Orange the best mobile network based on more than 61,000 measurements via its BeCover+ app. And in March 2026, Opensignal placed Proximus well ahead. None of them is wrong: they answer different questions. "Who covers the most square kilometres?" is not "who gives me the best speed where I live?"

For real use, the experienced result (Opensignal, Test-Achats) matters more than the percentage of territory. An operator can show 95% outdoor coverage and disappoint inside your building. That is why the only ranking that truly counts is the one at your address.

Does 5G coverage mean faster speeds?

Not automatically. Having the "5G" logo on your phone doesn't guarantee high speed: it all depends on the frequency band used and the antenna load. 5G on a low band (700 MHz) carries far but delivers little; 5G on a mid band (3.5 GHz) delivers a lot but carries less far. The speed you feel depends on the frequency deployed at your address.

What is the 5G+ (standalone 5G) Proximus launched?

5G+, or standalone 5G (5G SA), is a 5G that no longer relies on the 4G core network. Proximus launched it commercially in April 2026, a Belgian first. It lowers latency and enables network slicing.

Until now, Belgian "5G" was in fact non-standalone 5G: the 5G antenna provided the speed, but the network core stayed on 4G. 5G SA switches everything to 5G, from the phone to the core. The gain shows mainly on latency (the network's reaction time) and on real-time uses such as online gaming, video calls or, tomorrow, industrial applications.

For the general public in 2026, the change stays subtle day to day. But it's a signal: real 5G is arriving, not just the icon. Proximus takes a technological lead that Orange and Telenet/BASE will have to follow.

Does 5G change anything at your address?

Yes, a lot. Outdoor 5G coverage exceeds 87% in Belgium, but the inside of buildings and rural areas stay uneven. Two addresses in the same city can receive very differently depending on the nearest antenna and the thickness of the walls.

This is the angle marketing sheets avoid: the national average says nothing about your living room. A concrete building, a basement flat or a house in the Walloon countryside can sharply cut the 5G signal, even with the national leader. 5G on the 3.5 GHz band, the fastest, penetrates walls less well than classic 4G.

Before choosing an operator for 5G, test your exact address, not your municipality's average. Our comparison of the best mobile operators in Belgium covers the rest of the criteria (price, data, commitment).

How can I check 5G coverage at my address?

Three free tools. The IBPT coverage atlas, from the Belgian regulator, aggregates operators' maps neutrally. The coverage maps on the Proximus, Orange and BASE sites allow an address-by-address check. Finally, measurement apps such as nPerf or BeCover+ (Test-Achats) show the real speed recorded near you.

5G coverage by operator: the comparison

Summary of positions recorded in June 2026 from Opensignal, Test-Achats, Astel and operator sites. The ranking varies by source and area.

5G is included in most recent plans. MVNOs connect via the antennas of their host network.

DIGI, the 4th network: can it reshuffle the deck?

In time, yes. DIGI won 5G frequencies at the 2022 auction and is building its own mobile network, on top of using the Proximus network as host. In February 2026, the operator was speeding up its rollout across major Belgian cities.

DIGI was then targeting Brussels (the 19 municipalities), Liège, Charleroi and Ghent, with an announced five-year plan and the ambition of nationwide 5G coverage by 2030 (DH/Les Sports+, February 2026). The arrival of a fourth real network — not just an MVNO — is a Belgian first in years, and the promise of downward pressure on prices.

The flip side: in the short term, DIGI's own network stays concentrated in cities. Elsewhere, you go through the Proximus antennas. Its 5G Home Internet offer at €7/month, launched in January 2026, shows the limit: it requires an outdoor antenna and its value "depends on the location" (Le Vif, 2026).

Do you have to pay more for 5G in Belgium?

No, not necessarily. 5G is now included in most plans, even with low-cost MVNOs that connect via the same antennas as the historic operators. Paying the premium rate is only justified if coverage differs at your address.

hey! telecom offers 5G from €5/month on the Orange network; DIGI starts at €3/month on the Proximus network. Against that, a premium plan from a historic operator often exceeds €30/month. Since an MVNO uses its host's antennas, the 5G coverage is identical: in Brussels, a hey! subscriber gets Orange 5G exactly like an Orange subscriber.

The only case that justifies the top price: a need for guaranteed network priority or specific options (standalone 5G+, guaranteed business speed). For general use, the 5G of a good MVNO at your address is well worth that of a plan three times more expensive.

To dig deeper, compare the Proximus, Orange and BASE networks or discover the best alternative operators (MVNOs) that offer 5G on a budget.