Connect your home to fiber

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

Can I have fiber?

The Internet of the future is now!

Proximus is gradually rolling out fiber in Belgium. Il will allow you to enjoy incredible performance:

  • a stable connection even when everyone is connected
  • an ultra-fast 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

Discover Flex Fiber

The pack tailored to each family member

Flex Fiber is…

  • a stable connection even when everyone is connected
  • an unlimited and ultra-fast Internet
  • an unlimited access to Le Soir or Het Laatste Nieuws Digitaal with
    My e-Press
  • a mobile subscription for the whole family at a super advantageous price
  • an unparalleled Pickx TV experience on all your screens
Free installation

Did you know?

The installation of the fiber at your home is completely .

Are you already a Proximus customer? At some stage, your current copper cable will need to be replaced. Fiber, which will succeed it, meets the ever-increasing need for connectivity. It guarantees you better performance today and in the future.

How do I get 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.

Discover what fiber is in a video.

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.

Already a Proximus customer? Your current copper cable will soon have to be replaced by fiber anyway. Fiber meets the need for ever greater connectivity. Furthermore, it guarantees you better performance today and tomorrow.

As a tenant, all you have to do is submit your request to Proximus. The landlord cannot oppose the choice of operator, nor the installation of fiber at the request of the tenant. We nevertheless advise you to inform the landlord.

In a building in co-ownership, all owners will normally have already been notified of the arrival of fiber in the building through the general assembly or by the syndic/building manager.

All about installation

Faster and more stable than traditional copper cabling, fiber is also more environmentally friendly.

It can be entirely produced in Europe and consists of glass made from silicon dioxide, the most abundant element on earth after oxygen. This resource is found in sand, clay, rocks and even water. Mining it is therefore not harmful for the environment.

Moreover, fiber uses 4x less electricity than copper, and its production leaves a very small environmental footprint: 0.06 kg of CO2 for glass fiber compared to 1000 kg for 2 kg of copper wire (used for your current connection).

Switching to this future-proof technology makes sense for the environment and the climate!

Watch a video on why fiber is environmentally friendly.

The installation takes between two and four hours, but don't worry, the connection is only cut off for a few minutes. So you can continue your activities without any problems.

For new housing estates and apartment buildings, which are usually already connected to our fiber network, the technician only activates your services on the fiber network, which takes much less time.

Watch a video of how fiber is installed in your home.

All about installation

All frequently asked questions

Let's meet and talk

Customer service

Proximus Shop

Fiber info point

(with or without appointment)

Fixed Internet speed:

The 10 Gbps fiber technology allows speeds of up to 8.5 Gbps for download and 1 Gbps for upload. These fiber download speeds can only be achieved with a fixed device directly connected to the modem. Using Wi-Fi might reduce your surfing speed. The actual speed experienced also depends on the computer system, but also in exceptional cases, on the general usage. To find out the surfing speed at your home, visit

Conditions of the action:

To test the Ultra Fiber option before anyone else, you must subscribe to it. You won't have to pay any subscription fee until February included. After this date, your free trial will automatically end and you will be charged €30 /month in addition to the price of your (Business) Flex Fiber pack, unless you terminate your subscription before the end of this period.

To benefit from 10 Gbps technology, your current hardware must be replaced. An installation appointment will need to be scheduled. A technician will come to your home on the scheduled date to set up your Internet Box + and your new ONT box, which is used to connect your box to the fiber network. Any Wi-Fi Boosters you might have will also have to be replaced by Wi-Fi Boosters +.

If you terminate your Ultra Fiber option, you will be asked to return your Internet Box + and any Wi-Fi Boosters +. You will be downgraded back to your basic Internet subscription (with a speed of 1 Gbps/100 Mbps) and the right hardware, a new Internet Box (and if applicable, one or more Wi-Fi Boosters) will also be delivered to you by post.

Selection criteria:

We will select max. 250 people who will get the chance to subscribe to the Ultra Fiber option to try out the 10 Gbps fiber technology. This selection will be made according to several criteria:

  • You need to be a Flex Fiber customer.
  • Your Flex Fiber installation address has to be in one of the following 5 cities: Antwerp, Brussels, Ghent, Liege or Namur.
  • A series of technical criteria including the size and configuration of the home have to be met. Find out more about the technical criteria here(PDF, 79KB).

Selected customers will be contacted at the end of November.

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 200 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 costs no more than a standard connection
  • 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