Fiber is coming to your city!

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Free installation and activation

  • Ultra-fast and unlimited Internet
  • Free installation and activation
Flex Fiber

As from €95.99 /month

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The 3 advantages of Fiber to the Home

Ultra-fast Internet

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

Ultra-stable connection

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

Ultra-low latency

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

Proximus fiber, right to the heart of your home

Proximus is the only Belgian operator to install end-to-end fibre on a large scale, right to the heart of your home, in collaboration with network builders Fiberklaar, Unifiber, and GOfiber. Unlike most competitors, who use cables for the last few meters. It makes all the difference in terms of speed, stability and latency.

Download

Download a video game (30 GB)

Flex+ Ultra Fiber - 8.5 Gbps
Downloaded in 28.24 s
Flex+ Giga Fiber - 2 Gbps
Downloaded in 2 min
Copper - 100 Mbps
Downloaded in 40 min

Upload

Share a vacation album with your family (10 GB)

Flex+ Ultra Fiber - 8 Gbps
Uploaded in 10 s
Flex+ Giga Fiber – 2 Gbps
Uploaded in 40 s
Copper - 30 Mbps
Uploaded in 44 min 27 s

Convinced by fiber?

Discover our fiber products, available in packs or as internet only.

Proximus fiber, doubly awarded

Proximus fiber was awarded both by Ookla®(PDF, 3 MB) for the fastest Internet in Belgium and by nPerf(PDF, 2 MB) for the best fixed Internet performance!

How is fiber installed at my address?

Fiber installation is different for each address

Fiber installation varies depending on your location and the type of property you own. Find all the information on our dedicated page.

Fiber comes with state-of-the-art equipment

Our fiber customers with a giga-fast Internet experience receive the Internet Box+ with the latest Wi-Fi 6E technology, offering ultra-fast, ultra-stable, and ultra-secure Wi-Fi. Our Wi-Fi Boosters(+) integrate Mesh technology, ensuring seamless coverage throughout your home.

Questions that you may still have

Proximus was awarded for the excellent performance of its fiber network by Ookla® and nPerf, two renowned international organizations specializing in measuring network quality and speed.

  • On the one hand, Ookla® awarded Proximus fiber the Speedtest Award for the fastest internet in Belgium (Q3-Q4 2024)(PDF, 372 KB) based on more than 4 million tests performed by users on fixed connections from various providers, via different applications. With a maximum download speed of 828.66 Mbps and a maximum upload speed of 506.95 Mbps, the test results on Proximus fiber are significantly superior to those on competitors’ networks.
  • On the other hand, nPerf awarded Proximus the Award for the best fixed internet performance in 2024(PDF, 2 MB) and fiber customers benefited from the best Ultra High Speed (UHS) performance in Belgium in 2024. With a score of 171,158 nPoints, covering various aspects such as upload and download speeds, latency, web browsing, and streaming experience, Proximus fiber – installed right into the heart of homes – far surpasses the competition.

The European Commission defines ultra-fast broadband as a connection offering speeds of at least 100 Mbps. This goal is part of the strategy for a Gigabit Society by 2025, aiming to ensure that all European households, whether in urban or rural areas, have ultra-fast internet connectivity.

These two recognitions highlight Proximus’ leadership in network performance and prove that continuous investments in fiber are essential to guarantee an unparalleled customer experience.

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.

Your fiber connection is completely free of charge for every activation of a Fiber pack, whether you are an existing Proximus customer or not. If you opt for another fiber product outside the pack, for example Internet Fiber, a fee of € 59 will be charged for a new installation.

By letting us know your are interested in fiber, you are making sure you will receive free installation and activation of your future Proximus Flex Fiber pack (see conditions).

It all depends on your current pack, your options... and the pack you will choose. Once fiber has been pre-installed, you will be able to choose the Fiber pack that suits you best.

No, you can always change or cancel your application at any time and free of charge. You are also always free to choose another operator for fiber.

Discover the different installation steps (and a short video) on Fiberklaar's website: https://www.fiberklaar.be/nl/aanlegNew window

Once the fiber entry point is installed in your home, we will come and install the modem and activate your fiber product(s).

Want to know more about fiber?

Customer service

Proximus Shop

Fiber events

The Terms and Conditions and Pricelist & tariffs apply.

Unlimited data volume

Personal and normal use, see the General Terms and Conditions. After using 3 TB, your speed will be limited to the end of the month, unless you activate your free 300 GB extra volume via Proximus+. More information: proximus.be/internetpolicy(PDF, 151 KB) .

Fastest fixed Internet in Belgium

  • Based on analysis by Ookla®(PDF, 3 MB) of Speedtest Intelligence® data, Proximus fiber via Speedtest Enrichment API vs top-providers, Belgium, Q1-Q2 2025. Ookla trademarks used under license and reprinted with permission.
  • Based on maximum speeds: comparison of the highest maximum speeds(PDF, 105 KB) offered by Proximus, VOO, Orange and Telenet. Only with Flex+ Giga/ Flex+ Ultra Fiber and if your address is eligible for fiber.

Best fixed Internet performance

Results from the 2024 fixed connections barometer(PDF, 2 MB) published on 13/01/2025 by the independent company nPerf. Results based on 404 764 tests carried out between 01/01/2024 and 31/12/2024 on fixed networks (xDSL, HFC, FTTx) in Belgium. Barometer and methodology available on nPerf.com.

Free installation

Free installation by a technician for new Flex+ Fiber customers if self-installation is not possible. If you opt for a fiber product without a package, an additional fee may be charged for a new installation.

Why choose fiber?

Fiber to the Home is the guarantee of an ultra-fast and an ultra-stable Internet no matter how many devices or people are connected. Fiber to the Home offers ideal conditions for the biggest fans of online gaming and video games, and also for users eager to download or upload at the speed of light.

Fiber and copper speed comparative table
Download time for a 10 GB file Upload time for a 10 GB file
Flex+ Ultra Fiber (8.5 Gbps/8 Gbps) 9.4 s 10 s
Flex+ Giga Fiber (2 Gbps/2 Gbps) 40 s 40 s
Copper (100 Mbps/30 Mbps) 13 min 20 s 44 min 27 s

The advantages of Fiber to the Home:

  • Proximus fiber offers the fastest Internet in the country
  • Proximus fiber offers a very stable Internet connection
  • Proximus fiber offers very low latency
  • Proximus fiber costs no more than a standard connection
  • Proximus fiber increases the value of your home
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