Fibre optic eligibility test in Luxembourg: check your address in 2026
83.8% of Luxembourg households are connectable to fibre optic according to the ILR 2024 report — but being in a covered municipality is not enough: your specific address must be eligible, and eligibility differs from one operator to another. The smart method: compare the offers first to find the one that suits you, then run the official eligibility test on the website of your chosen operator. This guide explains why that order is the most efficient, how to check your address, and what solutions are available if you are not yet connectable.
Compare fibre offers before testing your address
Eligibility depends on the operator. Start by comparing every internet offer in Luxembourg to find the best one for your needs — you’ll then know which operator(s) to run the eligibility test with.
What does fibre eligibility mean in Luxembourg?
Being eligible for fibre optic means your home can be physically connected to the very high-speed network of at least one internet provider. Two conditions must be met simultaneously: the fibre infrastructure has been deployed near your home by POST Technologies (the main infrastructure operator), AND at least one commercial operator has activated its services at your specific address.
Fibre infrastructure has been deployed near your home
POST Technologies has run fibre optic cables in your street or neighbourhood. An Optical Distribution Point (PBO) must be accessible near your building. Without this physical infrastructure, no operator can connect you.
At least one commercial operator offers services at your address
The physical network alone is not enough — a commercial operator (POST, Tango, Orange, Luxembourg Online) must have activated its service on your zone. Once your street is connected, all operators with an access agreement can in principle sell you a subscription. This competition is regulated by the ILR (Institut Luxembourgeois de Régulation).
The ILR considers a building « connected to fibre » when fibre is already available or will be available within a maximum of four weeks. If your address appears as covered on the ILR map (myilr.lu), you can expect to be connectable very soon.
Why eligibility differs from one operator to another
This is the key point: there isn’t a single eligibility status, but one per operator. You need to distinguish infrastructure eligibility (fibre runs through your street) from commercial eligibility (a specific operator can actually sell you a subscription at your address). Between POST Technologies deploying the infrastructure and each operator activating its commercialisation, a gap of a few weeks or months can occur. As a result, you may be eligible with POST but not yet with Tango or Orange — and vice versa. That’s exactly why it’s more efficient to compare the offers first (to know which ones interest you), then test your address operator by operator on their official websites.
As of end 2024, 16.2% of Luxembourg households were not yet covered by fibre. POST Technologies is actively deploying the network towards 100% national coverage, with investment levels at a historic high (+73% in 2024 per ILR).
Source: ILR — Luxembourg Telecommunications Statistical Report 2024.
The smart method: compare first, test next
Testing your eligibility before comparing the offers means you risk subscribing to a plan that’s available but not the best value. Comparing first, then testing, guarantees you choose the best offer that is actually available at your address. Here is the workflow Switchr recommends.
Compare internet offers in Luxembourg
Start with our internet comparator. In a few minutes you see, side by side, every fibre, cable and fixed-5G offer on the market: speed, monthly price, commitment length, installation fees, TV/mobile bundles. You quickly identify the 2 or 3 offers that match your needs and budget.
Build your operator short-list
From the comparison, keep the operators whose offer interests you most. No need to test your address with all four operators if only two offer a plan that suits you — you focus your checks where it counts.
Run the official eligibility test on each operator’s website
For each shortlisted operator, use its own eligibility tool (posttechnologies.lu, orange.lu, tango.lu, internet.lu). This is the only way to get a reliable, address-by-address confirmation of commercial availability with that specific operator. You can cross-check the results with the official ILR map (myilr.lu).
Subscribe to the best eligible offer
You now know which offers are both worthwhile and available at your address. All that’s left is to subscribe to the one with the best value over time — usually on a 24-month projection, installation fees included.
In short: the comparator tells you which offer is worth it, the operator test tells you whether it’s available at your home. Both are free and complementary — combine them to avoid mistakes.
How to test your fibre eligibility in Luxembourg
Once you’ve compared the offers and built your short-list, here are the official tools to verify, address by address, whether you’re connectable.
Operator eligibility tools (the reference)
Each operator provides its own commercial eligibility checker — the most reliable way to confirm availability with that operator: POST Technologies at posttechnologies.lu, Orange Luxembourg at orange.lu, Tango at tango.lu, Luxembourg Online at internet.lu or on 2799 0000. Test each shortlisted operator — this is the step that confirms real eligibility at your address.
Official ILR map (myilr.lu)
The ILR provides an interactive coverage map at myilr.lu, showing fixed and mobile network availability by address, technology (FTTH fibre, DOCSIS cable, xDSL, 4G, 5G) and infrastructure operator. The official reference source, freely accessible — ideal for an overview before testing with operators.
Physical check in your building
If you live in an apartment, check the basement or parking area for a fibre distribution cabinet (a white or grey box with thin optical cables, labelled POST Technologies or Eltrona). Its presence confirms your building is connected or being connected to fibre. In a house, an ONT (optical box) on the wall confirms an existing connection.
The Switchr comparator (the prior step)
Before any test, our internet comparator lets you identify the offers worth pursuing, operator by operator. You then only test your address with the operators that are genuinely of interest — a major time-saver.
POST connection number: if your building is already connected to the POST Technologies network, a sticker on the ONT (optical box) shows a connection number in the format 169XXXXXX or 612XXXXXX. Share this number with your chosen operator when subscribing — it speeds up your line activation.
Understanding the results of your eligibility test
✅ Eligible for FTTH fibre
- Fibre infrastructure is present in your street or building
- The operator you tested offers fibre subscriptions at your address
- You can subscribe and get speeds up to 8.5 Gbit/s
- Installation typically within 1–4 weeks depending on connection status
- Temporary 4G/5G access often provided from the moment you sign up
⏳ Deployment planned soon
- Fibre infrastructure not yet present but planned in your area
- ILR considers addresses « planned within 4 weeks » as covered
- Eltrona cable, fixed 5G or satellite remain available options
- Compare available alternatives on Switchr to stay connected right away
Before testing your address: compare every internet offer in Luxembourg to know which ones deserve an eligibility check.
Compare offersFibre eligibility in an apartment in Luxembourg
If your building is already connected to fibre, simply compare the offers, confirm your eligibility on your chosen operator’s website, then subscribe — the technician connects your apartment to the existing distribution point (PBO). If your building is not yet connected but fibre is available in the street, the process depends on your situation.
You are a tenant
You must obtain written authorisation from your landlord before any installation involving works in the property or common areas. In a co-ownership building, the property manager (syndic) must also agree — the matter can be added to the agenda of a General Assembly. Luxembourg law (17 December 2021 on electronic communications networks) facilitates these decisions by subjecting such works to a simple majority vote rather than a reinforced majority.
You are an owner-occupier
In a co-ownership not yet connected, you can submit a connection request to the General Assembly agenda (simple majority vote required), or contact an operator directly to equip the building. Once the building is connected, you subscribe with the operator of your choice.
If you are in a building not yet connected, plan well ahead. Between the General Assembly agenda submission, the assembly itself, the operator agreement and the actual works, several months can pass. In the meantime, an Eltrona cable or fixed 5G solution can connect you immediately — see our guide on cable internet in Luxembourg.
Fibre eligibility in a detached house in Luxembourg
If the fibre infrastructure is present in your street but your house is not yet connected, POST Technologies is responsible for the physical connection. You can submit an underground connection request at posttechnologies.lu. If existing conduits run from the street to your house, the technician uses them to pull the fibre cable — the fastest and lowest-cost option. If no conduits exist or they are damaged, POST Technologies provides a quote for the necessary works. Note that works required on your private property due to damaged conduits are at your expense as the property owner.
Building a new home in Luxembourg? Legislation requires all new buildings (building permit submitted after 31 December 2016) to include high-speed internal cabling infrastructure. In practice, virtually all new homes in Luxembourg are connected to fibre during construction — notify POST Technologies as early as possible to integrate the fibre connection into the works. For relocations, see our guide on internet when moving home in Luxembourg.
Compare offers → switchr.lu/en/internet/
Street eligibility check → myilr.lu + operator sites
Underground connection request → posttechnologies.lu
Technical visit + quote (if works needed) → 2–4 weeks
Works completion → a few weeks to several months
Subscription to a fibre plan → after effective connection
What to do if you’re not yet eligible for fibre
If your address is not yet connectable to FTTH fibre with the operators you tested, several alternatives give you very high-speed access today. Compare them on our internet comparator.
Coaxial cable — Eltrona
Up to 1 Gbit/s · 85% of territory
Eltrona operates its own cable network covering 85% of Luxembourg. Its Internet GiGA offer delivers up to 1 Gbit/s download, no commitment, installation guaranteed within 7 days. Often the best immediate alternative to FTTH fibre.
See Eltrona offerFixed 5G (4G@Home / 5G@Home)
100–500+ Mbit/s · Mobile coverage
POST, Tango and Orange offer SIM routers using the 4G or 5G mobile network for fixed home connectivity. Often available the next day. See our guide on fixed 5G internet in Luxembourg.
See 5G fixed offersSatellite (Starlink)
100–300 Mbit/s · Everywhere
Last-resort solution for truly isolated locations. Starlink (SpaceX) offers 100–300 Mbit/s with 20–50 ms latency. Requires a dish antenna. See our guide on satellite internet in Luxembourg.
Find out moreSources: operator websites (eltrona.lu, post.lu, tango.lu, orange.lu), ILR — Statistical Report 2024, July 2026.
Subscription and installation after the test
Once your eligibility is confirmed with your chosen operator: confirm the offer you compared earlier (the best value among the operators where you’re eligible — speed, price, commitment, TV/mobile bundles, installation fees, including total cost over 24 months); subscribe online, by phone or in-store; receive a temporary 4G/5G router immediately (POST, Tango and Orange); schedule a technician visit (typically 1–4 weeks); and prepare the installation day — identify the ideal location for the ONT box (ideally in the living room near your devices), clear the space, and ensure you are present for the full intervention (1–3 hours for an apartment, half a day for a house). For a comparison of all current offers, see our internet prices in Luxembourg guide.
Compare internet offers in Luxembourg
Every fibre, cable and 5G offer in one place: speed, price and commitment compared. Find the best offer before testing your eligibility with the operator.
Which fibre operators may be available at your address?
In Luxembourg, four operators offer FTTH fibre subscriptions for households, plus Eltrona on its own cable network. Their availability at your specific address depends on each one’s network rollout in your area — which is why comparing then testing operator by operator matters.
| Operator | Technology | Max speed | Coverage | Key eligibility note |
|---|---|---|---|---|
| POST Luxembourg | Own FTTH | Up to 8.5 Gbit/s | 80%+ of territory | Widest deployment — often available even in rural areas |
| Tango | FTTH (via POST network) | Up to 8.5 Gbit/s | Main municipalities | Available where POST has activated unbundling — cities and peri-urban areas |
| Orange Luxembourg | FTTH (via POST network) | Up to 8.5 Gbit/s | All Luxembourg cantons | Livebox Fibre available in all cantons — check eligibility on orange.lu |
| Luxembourg Online | FTTH + DSL + cable | Up to 2 Gbit/s | Wide national coverage | Independent private operator — check on internet.lu or call 2799 0000 |
| Eltrona | Own coaxial cable | Up to 1 Gbit/s | 85% of territory | Independent network — no commitment, installation within 7 days, check on eltrona.lu |
Sources: operator websites, ILR — Statistical Report 2024, July 2026. Exact availability at your address may vary.
For a detailed breakdown of each operator, see our complete guide to internet providers in Luxembourg, as well as our dedicated guides for POST internet, Tango internet, Orange internet and Luxembourg Online internet.
Frequently asked questions — fibre eligibility in Luxembourg
Should I compare offers before or after the eligibility test?
Before. Since eligibility is operator-specific, it’s best to first compare the market’s offers to spot the ones you like, then test your address only with the shortlisted operators. This avoids subscribing to an available-but-poor-value plan, and saves you from testing your address with operators whose offer wouldn’t suit you anyway. The Switchr comparator is free and independent.
Can you live in a fibred street and still not be eligible for fibre?
Yes. Eligibility depends on two separate conditions: fibre infrastructure in your street (deployed by POST Technologies) AND commercial activation by a specific operator at your address. There can be a gap of a few weeks or months between infrastructure deployment and commercial activation, and that activation differs from one operator to another. If you are in this situation, test several operators and retest regularly — commercialisation typically opens fairly quickly after infrastructure is deployed.
Are the fibre eligibility tests free and non-binding?
Yes. The operator eligibility tools (posttechnologies.lu, orange.lu, tango.lu, internet.lu), the official ILR map (myilr.lu) and the Switchr comparator are all free and non-binding. Checking your eligibility or comparing offers never constitutes a subscription: you remain entirely free to subscribe or not, and with the operator of your choice.
Can I freely choose my fibre operator if my building is already connected?
In principle yes — once the fibre infrastructure is deployed in your building or street, all operators that have activated their commercialisation on your zone can sell you a subscription. The ILR-regulated unbundling mechanism ensures that alternative operators (Tango, Orange, Luxembourg Online) can access POST’s infrastructure. However, there may be a gap between POST’s availability and that of other operators — which is why it’s worth testing operator by operator after comparing the offers.
How long does it take to get connected after confirming eligibility?
If your address is already connected to fibre (ONT present or PBO accessible), installation is typically completed within 1–2 weeks of subscribing. If your building is not yet connected but the street is fibred, allow 2–4 weeks. For a detached house requiring specific works, timelines can be longer. Eltrona guarantees installation within 7 days for its cable offer. In most cases, POST, Tango and Orange provide a temporary 4G/5G router immediately upon signing.
Can my landlord refuse fibre installation in my rented apartment?
In Luxembourg, landlord authorisation is required for any installation involving works in the property or common areas. Luxembourg law (17 December 2021) facilitates these decisions by subjecting such works to a simple majority vote. In practice, if your building is already connected and no heavy works are required, authorisation is generally easy to obtain. If difficulties persist, the ILR offers a mediation service.
How do I switch fibre operator in Luxembourg?
Switching fibre operator in Luxembourg is straightforward and regulated by the ILR. Compare the offers first, check your eligibility with the new operator, then subscribe: it handles the cancellation process with your current provider. There is generally no service interruption during the switch. Be mindful of early termination fees if you are still within a commitment period. For step-by-step guidance, see our guide to switching internet providers in Luxembourg.