Fiber is available for you

Has Proximus fiber once again been recognised for its outstanding performance by Ookla® and nPerf?

Yes. Proximus confirms its position as a leader in network performance thanks to several distinctions awarded by Ookla® and nPerf, two international organisations specialised in measuring connection quality and speed.

From Ookla®:

• Speedtest Award for the fastest internet in Belgium (Q3-Q4 2025), based on more than 5 million tests carried out by users on fixed connections.
  With peak speeds of 914.50 Mbps download and 707.48 Mbps upload, Proximus fiber clearly outperforms the competition.
• Speedtest Verified claim for the most stable internet, proving the reliability of the network.

From nPerf:

• Award for the best fixed internet performance in 2025, with a score of 168 788 nPoints, covering speed, latency, web browsing and streaming experience.
  Fibre customers enjoy the best Ultra-Fast Broadband performance in Belgium.

“The European Commission defines ultra-fast broadband as a connection offering speeds of at least 100 Mbps. This objective is part of the EU’s Digital Decade strategy for 2030, which aims to ensure that all European households, whether in urban or rural areas, have access to ultra-fast internet connectivity.”

These recognitions confirm that Proximus fiber delivers an unmatched experience and that our continuous investments are essential to guarantee the best service for our customers.

What is fiber exactly?

Fiber is the technology of the future. The fiber cables transmit data over long distances at the speed of light and thus offer many advantages, including an ultra-fast and much more stable Internet connection than with traditional copper cables.

The network is modernised by gradually replacing the copper cables by fiber cables. And unlike most other operators who stop at the street, we are installing fiber right into your business, to ensure the best possible performance now and in the future. In the long term, the copper network will be completely replaced by this new technology.

Why should I take fiber for my business?

Thanks to fiber, you have a super-fast and stable internet connection, ultra-low latency, a sharper image than ever on all your screens and, above all: you’re ready for the future:

• Ultra-fast Internet: surf and share your files with colleagues and customers faster than ever before. With fiber, never again is your patience put to the test.
• Stable and reliable Internet: upload and download large files without interruption even if all your colleagues are connected at the same time.
• A sharper image than ever on all your screens: whether it's on your TV, tablet or smartphone, with fiber, no detail will escape you.
• Ready for the future: in the future, more and more devices in your business will be connected to the Internet. With fiber, you will easily cope with this evolution.

What do Gbps and Mbps stand for?

Mbps is a measure of the amount of data transferred in one second, and is used worldwide to quantify Internet speeds. Mbps stands for megabit per second. Gbps stands for gigabit (or GIGA) per second. A gigabit (or 1 GIGA) is 1,000 megabits - that’s very fast!

When a speed is indicated, it’s almost always the download speed. If 1 GIGA is specified for a Fiber Internet product, this means that the connection can download up to 1 gigabit of data per second. An example: with a connection of 1 gigabyte per second, you can download a video file with a volume of 1.5 gigabit in just 12 seconds, while you would need almost 3 minutes at a traditional speed (70 Mbps).

Is fiber greener?

Fiber not only offers you the fastest and most stable Internet connection on the market, it is also the most environmentally friendly solution. Sending data via fiber generates very little energy. And up to 12 times less than with your current copper cable! So switching to fiber is an optimal decision for the environment and the climate. By phasing out the current copper cables, we are currently recycling 500 tons of copper per year and giving it a second life.

Fiber consists of glass made from silicon dioxide. Silicon disoxide is the second most abundant element on earth, after oxygen. It is found in sand, clay, rocks and even water. Its exploitation does not harm the environment. 

Compared to copper, the production of fiber does not have a large ecological footprint. According to the industry, the exploitation and production of 2 kg of copper wire (which is used for your current connection) results in the emission of 1,000 kg of CO2, while the emission if fibre is only 0.06 kg.

Will equipment such as my alarm system, payment terminal and telephone exchange still work properly if I switch to fiber?

The alarm system:
It depends on how it is connected:

• Is it connected via Wi-Fi? This will not be a problem, but the installer of your alarm will need to reconfigure the terminal.
• Is it connected on your Internet line, on a mobile network, or on a separate analog line (of your pack) and dedicated to your alarm? In that case, you won't have to do anything.
• Is it connected on the same line as the one you make calls on (the line of your pack)? In that case we recommend that you opt for a backup battery (for your modem, so the modem will continue to function in case of a power outage). Test the alarm line afterwards.

In addition, if your alarm system is connected to a monitoring station, we advise you to ask your alarm installer to check to make sure the installation works properly

The payment terminal:
Recent payment terminals (Wi-Fi, IP, mobiles) will work on fiber connectivity (after being reconfigured). Only old PSTN terminals need to be examined more closely.

The telephone exchange:
This depends on the current technology of your telephone exchange. In case of:

• An IP-certified telephone exchange: it will work seamlessly on both copper and fiber IP connectivity. You don't have to do anything.
• A non-IP-certified telephone exchange (e.g. ISDN): you will have the choice between:
  • keeping your non-IP exchange and getting a box to convert the IP signal into an ISDN signal "Bizz IP Box ISDN" (€6.5/month).
  • migrating your exchange to a new Proximus IP exchange (with a "Bizz IP Box Other Party" box (€6.5/month) if your exchange is not a Proximus exchange).

Who are Unifiber, Fiberklaar and GoFiber?

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 and businesses. Once this is completed, Proximus offers the same Fibre products and services (packs, etc.), regardless of the network.

All frequently asked questions