Fiber is available for you!

Test your eligibility to fiber to enjoy ultra-fast and stable Internet

Choose my pack

What a chance, fiber is already here for you!

Choose your Flex Fiber pack and enjoy:

  • A free installation of fiber to your home
  • An ultra-fast and stable Internet
  • A sharper image on all your screens

10 Gbps fiber technology, by far the fastest Internet in Belgium

With Ultra Fiber option available for pre-registration in 5 major cities

Ultra Fiber is:

  • the fastest Internet in the country, powered by 10 Gbps technology that offers speeds of up to 8.5 Gbps download and 1 Gbps upload.
  • an ultra-stable connection for the whole family, on all your devices, anywhere in your home.
  • incredibly responsive, so you can get the edge on your opponents and download or update your games in seconds.

Are you a Flex Fiber customer? Are you looking for top-notch performance? Do you live in Brussels, Antwerp, Namur, Ghent or Liege? Be one step ahead and subscribe early to Ultra Fiber for unlimited possibilities.

Ultra-fast and stable Internet

Even when everyone else is connected!

With fiber, enjoy ultra-stable Internet and incredible speeds no matter how many devices or people are connected.

Ultra Fiber
9,4 sec

Fiber 1 Gbps
1 min 20

Copper 100 Mbps
13 min 20

Ultra Fiber
1 min 20

Fiber 100 Mbps
13 min 20

Copper 30 Mbps
44 min 27

"I can work a lot faster. I don't have to ask people to repeat things three times in a meeting. There are no glitches and everything runs very smoothly."

Martin, 28, Antwerp

"Wow, what speed, what stability! With fiber, even when there are 5 of us online, everything goes at the same speed. Even when my son is gaming online with his friends."

Julie, 46, Liège

Upgrade your pack

To make it compatible with the fiber technology

This is what you get with fiber…

  • Internet up to 10 times faster
  • A more stable connection without interruption
  • An unparalleled Pickx TV experience on all your screens
Free installation

Did you know?

By opting now for fiber you will avoid having your fixed Proximus products cut off. The copper network will eventually be dismantled.

Switch to Flex Fiber without missing a beat. By doing so, you can take advantage of free fiber installation at your home.

As from 01/01/2023, the rates of  will change.

Fiber is available to you!

What should I do to enjoy fiber?

Questions that you may still have

As a technology of the future, fiber transmits data over great distances at the speed of light. The advantages are numerous, including a super-fast and much more stable Internet connection.

Proximus is modernizing its network (teaming up with other partners such as Fiberklaar and Unifiber) and is gradually replacing its current copper cables with fiber cables. Ultimately, the Proximus copper network will be completely replaced by this new technology.

Thanks to a close collaboration with the construction sector, most new housing estates and apartment buildings are swiftly connected to our fiber network.

And unlike most other operators, Proximus takes the fiber right into your home. This guarantees you the best possible performance, today as well as tomorrow.

Find out more about this new network

Your current copper cable will soon have to be replaced. Fiber, which will be rolled out instead, meets the need for ever greater connectivity. It guarantees you better performance today and tomorrow.

With fiber, you'll have access to super-fast and stable Internet, ultra-low latency, a sharper than ever image on all your screens and, most importantly, you'll be equipped for the future:

  • Super-fast, stable Internet: no downtime or slowdowns when importing or exporting documents, watching videos and playing online, no matter how many people or devices are connected at the same time.
  • Ultra-low latency: latency is the delay between a data transfer request and the response to that request. Indeed, when you play online, every millisecond counts. With fiber, you stay one step ahead of your opponents.
  • A sharper picture than ever before on all your screens: Whether on TV, tablet or smartphone, with fiber, you won’t miss even the tiniest detail.
  • Future-proof: tomorrow, your home will be increasingly connected thanks to the Internet. With fiber in your home, this evolution is child's play.

Mbps is the unit that measures the amount of data transferred in one second. This measuring unit for data transmission is used worldwide to quantify Internet speeds. Mbps stands for megabit per second. Gbps (or GIGA) stands for gigabit per second. One gigabit (or 1 GIGA) corresponds to 1,000 megabits, which is very fast!

The speeds advertised by Proximus correspond to download and upload speeds. When a fiber product claims Internet speeds of up to 1 GIGA, this means that the connection is capable of downloading up to 1 gigabit of data per second. With a 1 gigabit per second connection, you can download a 1.5 gigabit movie in just 12 seconds. At traditional speed (70 Mbps), this download takes you almost three minutes.

Faster and more stable, fiber is also more environmentally friendly. It uses up to 12 times less energy to send data than your current copper cable! Switching to fiber makes sense for the environment and the climate.

Fiber consists of glass made from silicon dioxide, the most abundant element on earth after oxygen. It is found in sand, clay, rocks and even water. Its mining is not harmful to the environment.

Compared to copper, the production of fiber has a small environmental footprint: 0.06 kg of CO2 for glass fiber compared with 1000 kg for 2 kg of copper wire (used for your current connection).

Finally, Proximus recycles up to 500 tonnes of copper per year to give it a second life.

This depends on the products you currently have. Depending on the flavor you choose, it is possible that, in some cases, your Flex Fiber pack will cost you a little more than your current package. However, your Internet connection will be more stable and up to 10 times faster, and the image on all your screens will be sharper and, most importantly, you will be equipped for the future. What's more, the installation of fiber at your home is completely free of charge.

It all depends on how your alarm system is connected:

  • Via Wi-Fi or ethernet to your b-box? You don't have to do anything.
  • Via the analogue line? This type of connection will be phased out with the switch to fiber. You will have to order a separate analogue line or contact your installer to update your alarm system.
  • Via your telephone line? The Service Line is available! A line dedicated to your alarm system. More info on service line. You can also order service line via this form.
  • Via a remote monitoring center? Ask your alarm installer to check that the installation is working properly.

Let's meet and talk

Customer service

Proximus Shop

Fiber info point

(with or without appointment)

Fixed internet speed: the actual speed experienced depends on the computer system, but also in exceptional cases, on general use. Your surfing speed may also be slower, while using Wi-Fi. Go to to discover the surfing speed in your home.
The download speed of 1 Gbps can only be obtained with a fixed device directly connected to the modem.

Why choose fiber?

Optical fiber is the guarantee of an ultra-fast and stable internet connection, without interruption or slowing down. You have a download speed of up to 1 Gbps and an upload speed of up to 100 Mbps with Flex Fiber. Optical fiber offers ideal conditions for the biggest fans of online gaming and video games, and also for users eager to download at the speed of light.

Download time
Fiber Boost option (1 Gbps per second)
Download time
Standard connection (70 Mbps)
Film (1.5GB) 12 seconds 3 minutes
Video game (5 GB) 42 seconds 10 minutes

The advantages of fiber:

  • Fiber offers a superfast internet connection
  • Fiber offers a very stable internet connection
  • Fiber lets you watch television in very high definition
  • Fiber increases the value of your home

Where is fiber available?

Fiber is available in several major Belgian cities and is being rolled out in others. It is also being deployed on industrial estates and in industrial buildings, as well as most new housing estates and apartment buildings.

Thanks to our partnerships with Fiberklaar in Flanders and Unifiber in Wallonia, the roll-out of fiber will pick up speed in the coming months and years, in order to offer you the best network available. The aim is to provide an ultra-fast and stable network that can easily absorb the data traffic that will continue to grow in the years to come.

Check if this applies to your city