By What is fibre optic internet?
Fibre optic internet is a type of broadband that transmits data as pulses of light through thin strands of glass, instead of electrical signals over the old copper telephone network. Because light travels extremely fast and loses almost no signal over distance, fibre delivers the highest speeds, the lowest latency and the most stable connection of any broadband technology available in France today.
In France, the technology you want is FTTH — Fibre To The Home (la fibre optique). A dedicated optical cable runs all the way from the operator's network to a small socket inside your home, called a PTO (the fibre wall socket). Your internet box (router) plugs straight into it. This is different from older "fibre" marketing that actually used coaxial cable for the last stretch (FTTLA/cable) — true FTTH is what delivers gigabit speeds.
Compared with ADSL or VDSL copper broadband, fibre is faster in both directions, far more reliable, and its speed does not drop the further you live from the exchange. France is gradually switching off the old copper network by 2030, which makes fibre the default choice for any long-term home.
"Fibre" (British spelling) and "fiber" (American spelling) mean exactly the same thing. In France the product is always marketed as la fibre or FTTH, so that is the wording you will see on operator websites and contracts.
How does fibre optic internet work?
Fibre optic internet works by converting your data into pulses of light and sending them down a glass or plastic fibre thinner than a human hair. The light bounces along the inside of the cable at close to the speed of light, then is converted back into a digital signal by your internet box. Here is the journey, step by step:
Your device sends data
Your computer, phone or TV sends a request through your internet box (router).
Data becomes light
A transmitter converts the digital signal into pulses of light injected into the fibre.
Light travels through glass
The light races through the optical cable with almost no loss, even over long distances.
Signal is decoded
At the other end the light is turned back into data — your page loads or your video plays.
Because light is not affected by electrical interference or by distance the way copper is, fibre keeps the same speed whether you live next to the exchange or several kilometres away. It also offers far more upload capacity, which matters for video calls, cloud backups and gaming. On premium FTTH plans the upload speed can even match the download speed (a symmetric connection).
Your fibre box needs mains power to work. Unlike an old analogue landline, fibre internet will not work during a power cut unless you have a battery backup — worth knowing if you rely on it for home working.
How fast is fibre optic internet?
Most fibre plans in France now start at 1 to 2 Gb/s and reach up to 8 Gb/s on the fastest gigabit offers. Even the cheapest no-commitment boxes are gigabit today — RED by SFR starts at 1 Gb/s and B&You at 2 Gb/s, both around €23–25/month. For comparison, the best ADSL copper line tops out at roughly 15–20 Mb/s. The real measured average on French fibre is around 570 Mb/s (nPerf, 2025), because everyday use rarely pushes the line to its maximum.
Entry / low-cost
download speed
Mid-range
up to · download speed
Premium / multi-gig
up to · download speed
Indicative speeds based on the four main French operators' fibre ranges (Orange, SFR, Bouygues, Free) — checked June 2026. Real speeds depend on your equipment, WiFi and the device used.
The advertised speed is the maximum the line can deliver. In practice, what reaches your laptop also depends on your WiFi, the network cable and the device itself — for example, many laptops cap out at 1 Gb/s over WiFi, so an 8 Gb/s plan only shows its full benefit on a wired connection or across several devices at once. To measure exactly what your connection delivers right now, use our dedicated tool:
Free tool Run a broadband speed test for your connection- An entry gigabit plan (1–2 Gb/s) already covers browsing, 4K streaming and a small household;
- Around 5 Gb/s suits a busy family with 4K TV and many connected devices;
- 8 Gb/s multi-gig is only worth it for heavy gamers or very large shared homes.
Is fibre optic internet available in my area?
Fibre availability in France is checked address by address, not town by town. Two flats in the same street can have different eligibility depending on when the building was connected. The only reliable way to know if you can get fibre optic internet near you is to run an eligibility test on your exact address — enter your postcode and street below to see which operators and speeds are available:
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Double-check the number and postcode, or start typing to see suggestions. You can also call an adviser and we'll check it together.
* Promotional price for the first months. Regular price may apply thereafter.
Across France, fibre (FTTH) can now reach around 94% of premises (ARCEP, 2026), and the rollout continues in less dense and rural areas. If your address is not yet eligible, you usually have strong alternatives — a 5G home box in well-covered areas, or satellite broadband such as Starlink in remote locations.
France runs one of the most advanced full-fibre rollouts in Europe. As of ARCEP's Q1 2026 figures, 27.7 million homes already subscribe to full fibre — 84% of all fixed broadband lines — and around 94% of premises can now be connected. Full fibre (FTTH) has overtaken copper across most of the country, which is exactly why the old ADSL network is being switched off by 2030. For an expat moving to France, this means fibre is the rule rather than the exception at most addresses. (Source: ARCEP, Q1 2026.)
Best fibre optic internet plans in France
France has four main fibre providers — Orange, SFR, Bouygues Telecom and Free — plus their lower-cost sub-brands Sosh, RED by SFR and B&You. A fibre package (box) bundles your internet, a WiFi router and usually unlimited calls; TV is included or optional depending on the plan. Entry fibre starts from around €23/month, with premium multi-gigabit boxes reaching €40–60/month.
For expats, two operators stand out: Orange and Bouygues Telecom both offer English-speaking support, while Free and RED by SFR are consistently the most competitive on price. Bouygues Telecom ranked #1 for fixed internet performance in France (nPerf, 2025), and Free's Freebox Ultra is one of the fastest boxes on the market at up to 8 Gb/s.
- Your address is eligible for FTTH (true fibre, not cable);
- Whether the plan has a 12-month commitment or is no-commitment;
- The price after any promotional period ends (often month 12);
- Whether TV, calls and the box rental are included or extra.
How is fibre optic internet installed?
Fibre installation in France is done by a technician and is usually free when included with your plan. If your building is already connected to the fibre network, activation can take just a few days; for a brand-new connection that needs a technician to run the cable to your home (le raccordement), it typically takes one to three weeks from subscribing. Here is what to expect:
Check eligibility
Confirm your address is FTTH-eligible and choose a plan.
Book the appointment
The operator schedules a technician visit, usually within 1–3 weeks.
Technician runs the cable
The fibre is pulled from the street to a wall socket (PTO) in your home.
Plug in and activate
Your box connects to the socket — you are online the same day.
The visit usually lasts two to four hours. The technician installs the fibre socket, connects your box and tests the line. You should plan to be home for the appointment, and someone aged 18 or over must be present.
In a shared building (copropriété), the first fibre connection may need the building owner's or the residents' association's approval. If you rent, tell your landlord before booking — but they cannot refuse a fibre connection without a serious reason under French law. The installation itself is normally free; only optional extras (a long custom cable run, for example) may be charged.
Advantages and disadvantages of fibre optic internet
Fibre is the best home broadband technology available in France, but it is not without trade-offs. Here is an honest summary of where it wins and where it can fall short.
Pros
- The fastest speeds available, up to 8 Gb/s;
- Very low latency — ideal for gaming and video calls;
- Stable speed regardless of distance to the exchange;
- Much higher upload than copper or cable;
- Future-proof — copper is being switched off by 2030.
Cons
- Not yet available at every address, especially rural ones;
- Needs a technician visit and sometimes building approval;
- No internet during a power cut unless the box has a battery;
- Entry prices are slightly higher than the cheapest old ADSL;
- Multi-gig speeds need wired devices to be fully used.
Fibre optic internet in France: frequently asked questions
What is fibre optic internet? Read more Close
Fibre optic internet (fiber, in American English) is broadband that transmits data as pulses of light through strands of glass, instead of electricity over copper. In France it is known as FTTH (Fibre To The Home) and delivers speeds from 1 Gb/s up to 8 Gb/s — far faster and more stable than ADSL.
How fast is fibre optic internet in France? Read more Close
Most French fibre plans now start at 1 to 2 Gb/s and reach up to 8 Gb/s on the fastest gigabit boxes from Free, SFR and Bouygues. The real measured average is around 570 Mb/s (nPerf, 2025), so a 1–2 Gb/s plan is already more than enough for most households; multi-gigabit speeds mainly help large homes, gamers and heavy downloaders.
Can I get fibre optic internet at my address? Read more Close
Fibre is checked address by address, so the only reliable way to know is to run an eligibility test on your exact address. Around 94% of French premises can now be connected to fibre (ARCEP, 2026). If yours is not yet eligible, a 5G home box or satellite is the best alternative.
How much does fibre optic internet cost in France? Read more Close
Entry fibre plans start from around €23/month for 1 to 2 Gb/s, including the box and unlimited calls. Mid-range plans sit around €30–40/month, and premium multi-gigabit boxes (up to 8 Gb/s) reach €40–60/month. Installation is normally free when included with the plan.
How is fibre optic internet installed? Read more Close
A technician runs the fibre from the street to a wall socket (PTO) in your home, connects your box and tests the line — a visit of two to four hours. If your building is already connected, activation takes a few days; a brand-new connection takes one to three weeks. In a shared building, the first connection may need the residents' association's approval.
What are the disadvantages of fibre optic internet? Read more Close
The main drawbacks are availability (it is not yet everywhere, especially in rural areas), the need for a technician visit and sometimes building approval, and the fact that fibre will not work during a power cut without a battery backup. Entry prices are also slightly higher than the cheapest old ADSL plans.
Is fibre the same as a cable or ADSL connection? Read more Close
No. True fibre (FTTH) runs an optical cable all the way to your home. ADSL/VDSL uses the old copper phone line and is much slower. Some older "fibre" offers used coaxial cable for the final stretch (FTTLA) — only full FTTH delivers genuine gigabit speeds, so check the technology before subscribing.
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