Fiber in Flanders with Fiberklaar!

Fiberklaar and Proximus deliver the fastest internet in Belgium!

The fastest internet with Fiberklaar and Proximus makes all the difference

Fiberklaar, the fiber network builder, is actively rolling out fiber in many cities across Flanders. Once the network is ready, Proximus offers its fiber products via the Fiberklaar network to deliver top-quality internet!

Check if fiber can be installed and/or activated at your home to enjoy the best performance.

The 3 advantages of Fiber

Ultra-fast Internet

Ultra-fast Internet

Unmatched speeds so you can download and upload documents, photos, series or games in no time.

Ultra-stable connection

Ultra-stable connection

A flawless connection for the whole family, on all your connected devices, and anywhere in your home.

Ultra-low latency

Ultra-low latency

Almost instantaneous reaction time with no lag or interruption to give you the edge over your opponents.

Discover the speed of Proximus fiber

Proximus fiber delivers an ultra-fast and ultra-stable internet connection. It opens up endless possibilities:

Download speed

Downloading a video game (30 GB):

  • Proximus Ultra Fiber – 8.5 Gbps: download in 28 seconds
  • Proximus Giga Fiber – 2 Gbps: download in 2 minutes
  • Proximus Internet – 100 Mbps: download in 40 minutes

Upload speed

Sending a photo album (10 GB):

  • Proximus Ultra Fiber – 8.5 Gbps: upload in 10 seconds
  • Proximus Giga Fiber – 2 Gbps: upload in 40 seconds
  • Proximus Internet – 100 Mbps: upload in 44 minutes

Why does Proximus fiber perform better than competition?

At Proximus, fiber is always installed up to the heart of your home, ensuring the best performance in terms of speed and stability. We call this “Fiber to the Home” (FTTH). Proximus fiber guarantees an ultra-stable connection and speeds up to 8.5 Gbps download and 8 Gbps upload.

Most operators also claim to offer fiber, but they use a coax cable for the last few meters to connect homes to the network. As a result, performances are not the same. Currently, maximum coaxial speeds average 1 Gbps download and 50 Mbps upload.

Interested in a Flex+ Fiber pack?

Choose a Flex+ Fiber pack and enjoy an ultra-fast internet, ultra-attractive mobile subscriptions, and the Pickx TV experience.

Deployment of Proximus fiber with Fiberklaar

The fibre rollout takes place in 4 steps:

  1. First, a technical team carries out an on-site survey to analyse the needs.
  2. Then, detailed plans are drawn up to define the network route.
  3. Once validated, the works begin to install the cables along façades or under pavements.
  4. Finally, as soon as everything is ready, fibre becomes available at your address. You can then choose your fibre pack and schedule the installation at your home.

Why choose Proximus for your internet subscription in Belgium?

Switching to Proximus is easy: installation and activation are included with every pack. We even take care of cancelling your contract with your previous provider - no hassle for you. And with our no-commitment subscription, you stay in control: change or cancel anytime, with no fees.

  • Best of the Test 2025: The Flex+ pack with Internet, Mobile and TV was rated best pack in Belgium by Test-Achats, based on a survey of 13,000 consumers.
  • Proximus Fiber, double award-winning: Recognized by Ookla® for the fastest internet in Belgium, and by nPerf for the best fixed internet performance in 2024.

Got questions about fiber?

Yes, the installation is free of charge from the beginning of the installation to the activation of your fiber products. It is for free for existing Proximus customers and for new customers.

Fiber is the technology of the future, transmitting data over long distances at the speed of light. But to take full advantage of its potential, the fiber cable has to be laid right to the heart of your home. That's why it's called Fiber to the Home (FTTH).

Proximus is the only Belgian operator to deploy on a large scale fiber to the home, in partnership with Fiberklaar in Flanders, Unifiber in Wallonia, and GOfiber in the German-speaking part of the country.

Most other operators, such as VOO, Orange or Telenet, claim to offer fiber, but use a coaxial cable for the last leg from the street to the home. However, these two types of connection are absolutely not equivalent. Only Fiber to the Home guarantees the best performance in terms of download and upload speeds, stability and latency. And on top of that, your home is ready for the future!

While Proximus is gradually rolling out fiber to existing homes in Belgium, new housing estates and apartment blocks are usually immediately connected to our fiber network, in consultation with the construction industry.

The answer is no.

Currently, the standard for "ultra-fast" or "Gigabit" Internet service is up to 1 Gigabit per second (or Gbps) download, and up to 50 Megabits per second (or Mbps) upload. Most operators, such as VOO, Orange or Telenet, claim to offer fiber, but use a coaxial cable for the last section, from the street to the home. This is not a Fiber to the home connection.

Proximus installs fiber directly inside its customers' homes, and also in partnership with Fiberklaar in Flanders, Unifiber in Wallonia, and GoFiber in the German-speaking part of the country. The fact that the fiber cable is connected directly to your home means that you have your own cable, not shared with your neighbours. So you're totally independent of any external interference factors. And that makes all the difference, because you get an ultra-stable connection and the fastest Internet in the country, with download speeds of up to 8.5 Gbps and upload speeds of up to 8 Gbps. And that's just the beginning! By opting for this cutting-edge technology, you're ready for the future.

But what does this mean in practice? Imagine you want to download the Lord of the Rings Trilogy (30 GB): while a 1 Gbps connection allows you to download it in 4 minutes, an 8.5 Gbps connection allows you to do so in just 28.24 seconds. Can you tell the difference?

Find out more about Fiber to the home.

No, the fact that fiber has been installed in your street does not automatically mean that you benefit from it. To enjoy all its advantages, your home must be connected to the fiber network, which means a technician appointment is needed to install your fiber connection box, Internet Box(+), and activate your fiber connection.

If the network builder in your region is Fiberklaar, Unifiber, or GOfiber, two appointments will be necessary: the first to install your fiber connection box by one of these three builders, and the second to install your Internet Box(+) and activate your fiber connection.

Learn more about the installation.

With Proximus fiber, you surf the fastest Internet in Belgium and choose the Internet experience that suits your needs:

  • Flex+ Mega Fiber, ideal for homeworkers and streamers with download speeds of up to 500 Mbps and upload speeds of up to 500 Mbps: high-speed Internet to meet the needs of multiple users with equal download and upload speeds.
  • Flex+ Giga Fiber, ideal for families with download speeds of up to 2 Gbps and upload speeds of up to 2 Gbps: giga-fast Internet to meet the needs of multiple simultaneous users.
  • Flex+ Ultra Fiber, ideal for large families and gamers with download speeds of up to 8.5 Gbps and upload speeds of up to 8 Gbps: the fastest Internet available in Belgium both in download and in upload to meet the needs of the most demanding Internet users.

Please note that in certain specific cases, your building's wiring may only allow you to benefit from maximum speeds of 1 Gbps/500 Mbps. For further information, please contact your building manager or landlord.

Fiber is available in a number of major Belgian cities and is being rolled out or planned in others. By working hand in hand with the construction sector, most of the new housing estates and apartment buildings are already being connected to our fiber network.

So the first step is to check whether fiber is available at your address.

  • If this is not yet the case, fill in the Proximus form to be the first to be informed of its arrival.
  • In that case, you’ll be invited to discover our Fiber packs. Pick one of our existing packs or modify your pack according to your needs.

Do you already have a Proximus pack and want to benefit from fiber technology? Pick your Flex+ Mega, Giga or Ultra Fiber pack and we’ll ensure that your products are automatically converted.

To achieve our ambitious fibre coverage goals, Proximus is building its own fibre network in large cities and has partnered with three fibre network builders for medium-sized towns: Fiberklaar in Flanders, Unifiber in Wallonia, and GOfiber in the German-speaking Community. We work in partnership with these three builders, who are responsible for bringing fibre to homes. Once this is completed, Proximus offers the same Fibre products and services (packs, etc.), regardless of the network.