Who has the fastest internet in Luxembourg?

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Date published

October 6, 2025

Who has the fastest internet in Luxembourg?

Luxembourg is home to some of Europe’s most reliable and high-speed networks. Here are the internet service providers that regularly show top results on speed testing platforms:

The fastest internet providers in Luxembourg

Mixvoip – Business-focused ISP delivering high-speed fibre, VoIP, and managed IT support with a strong presence in Luxembourg and Belgium.
POST / Deep – The national operator offering a wide range of residential and business fibre internet plans.
Eltrona – Longstanding cable and fibre provider known for TV and residential broadband services.
Orange – Mobile-first operator offering converged mobile and fixed internet solutions.
Tango / Proximus – Subsidiary of Proximus Group providing fibre, mobile, and bundled services in Luxembourg.

You can verify these rankings on major speed testing platforms such as checkmynet.lu, nPerf.com, speedtest.net, testmy.net, and speedgeo.net. Mixvoip consistently ranks among the top 2 internet service providers in Luxembourg.

Speed is not the whole story

This is the ranking we at Mixvoip would love to publish every day. But the reality is that Luxembourg’s backbone network is one of the strongest in Europe. Almost all providers rely on fibre cabling from Luxconnect or the incumbent operator. Whether it’s direct fibre (FTTH or FTTO) or GPON/XGS-PON links, every provider can deliver speeds of up to 10 Gbit and often more. Transit uplinks are robust, and the local last mile often uses the same physical cables regardless of the provider. In other words: Raw speed is rarely the differentiator.

How to choose your internet provider in Luxembourg?

If the underlying infrastructure is largely the same, what really matters? The difference lies in the details:

a) Service and support quality

How fast does the provider respond to your needs? Are you treated as a priority customer or just another ticket in the system? The best ISP is the one that places your business first, with processes built to give you quick answers and real solutions.

b) Response to outages and SLA in practice

All providers talk about service-level agreements (SLAs), but few can back them up with real field resources. A true SLA means technicians who can drive to your office, on-site spares and fibre splicing equipment, and a team ready to restore service quickly without outsourcing delays.

c) Expertise beyond internet connectivity

Sometimes the issue isn’t the line itself. Firewalls, Wi-Fi networks, or endpoints can cause the problem. Mixvoip combines telecom operations with managed IT and cybersecurity expertise. Our technicians have direct access to specialists who can diagnose and resolve issues end-to-end, showing you exactly where the problem lies and how to fix it.

d) Flexibility and partnership

Contract terms also reveal how confident a provider is. Mixvoip keeps contract durations low because we want customers to stay by choice, not obligation. This keeps us sharp and responsive, ensuring that we’re your partner every day—not just your provider.

In summary

In Luxembourg, high-speed internet capacity is not the issue. Every major ISP can deliver top speeds. The real decision is about service, support, and expertise. Choose an ISP that offers the right product, transparent SLAs, and a true partnership. At Mixvoip, we see our customers as the heroes—Batman—and we’re Alfred, here to make sure your technology works flawlessly behind the scenes.

Want to know what speeds are available at your address? Use our address tool.