Cell towers in Guyancourt
Guyancourt has 1,475 known cell sites. The densest carrier is Bouygues Telecom with 438.
Nearest sites
| Operator | Generation | Distance | Bearing | Source |
|---|---|---|---|---|
| Orange | UMTS · 3 sectors | 102 m | 335° NW | Verified |
| Orange | NR · 3 sectors | 102 m | 335° NW | Verified |
| Orange | NR · 3 sectors | 102 m | 335° NW | Verified |
| Orange | LTE · 3 sectors | 102 m | 335° NW | Verified |
| Orange | LTE · 3 sectors | 102 m | 335° NW | Verified |
| Orange | LTE · 3 sectors | 102 m | 335° NW | Verified |
| Orange | LTE · 3 sectors | 102 m | 335° NW | Verified |
| Orange | LTE · 3 sectors | 102 m | 335° NW | Verified |
| Free Mobile | NR · 3 sectors | 123 m | 359° N | Verified |
| Free Mobile | LTE · 3 sectors | 123 m | 359° N | Verified |
Map
Carrier breakdown
| Operator | Sites | Share |
|---|---|---|
| Bouygues Telecom | 438 | 29.7% |
| Orange | 402 | 27.3% |
| Free Mobile | 333 | 22.6% |
| SFR | 302 | 20.5% |
This page lists the known cell sites in Guyancourt in Île-de-France, France. Positions come from ANFR, the regulator — these are surveyed, verified locations, not estimates.
Density here is about 14.5 sites per km², above the national average for this type of area (4.7/km²).
Altogether these sites report 4,077 sectors, averaging about 2.8 sectors per site.
95.3% of these sites report more than one sector, pointing to multi-directional antennas rather than omnidirectional coverage.
The largest gap between neighbouring sites is about 515 m — worth knowing if you're hunting for signal nearby.
19.7% of known sites report 5G, above the national figure of 16.2%.
All 1,475 known sites here come from a regulator-verified source (ANFR).
The most common frequency bands here are 900, 2100, 700 MHz, out of 7 distinct bands reported in total.
The nearest known site to the centre of Guyancourt is 102 m away, run by Orange.
4 operators are known here. Ranked by site count: Bouygues Telecom (438, 29.7%), Orange (402, 27.3%), Free Mobile (333, 22.6%), SFR (302, 20.5%).
Bouygues Telecom leads with 29.7% of known sites, 2.4 percentage points ahead of second-placed Orange.
By network generation: 60.9% 4G LTE, 19.7% 5G, 11.5% 3G UMTS, 7.9% 2G GSM.
80.5% of sites here run LTE (4G) or newer technology.
ANFR's data here was last refreshed in September 2026.
Frequently asked questions
- How many cell towers are in Guyancourt?
- 1,475 known cell sites are mapped in Guyancourt, from ANFR's verified data.
- Which carrier has the most sites in Guyancourt?
- Bouygues Telecom, with 438 sites (29.7% of the known total).
- Is there 5G in Guyancourt?
- 19.7% of known sites in Guyancourt report 5G, based on the latest observations.
- Are these positions accurate?
- Largely, yes — these come from ANFR's own regulator survey, not a community estimate, though positions can still lag real-world changes until the next update. See /data-sources for the source and licence per country.
Nearest known site is close — a booster may help
A signal booster amplifies an existing signal; it can't create one from nothing. With a known site this close, one of these is worth considering.
weBoost
Home and vehicle cell signal boosters, carrier-agnostic.
See productSureCall
Signal boosters sized by square footage, DIY install.
See productCel-Fi
Carrier-specific boosters, higher gain for a single network.
See product
Nearby places
- Cell towers in Voisins-le-Bretonneux (2.4 km)
- Cell towers in Saint-Cyr-l'Ecole (2.8 km)
- Cell towers in Montigny-le-Bretonneux (3 km)
- Cell towers in Magny-les-Hameaux (3.4 km)
- Cell towers in Buc (3.8 km)
- Cell towers in Saint-Quentin-en-Yvelines (4 km)
- Cell towers in Trappes (4.1 km)
- Cell towers in Chateaufort (4.3 km)
- Cell towers in Bois-d'Arcy (4.7 km)
- Cell towers in Fontenay-le-Fleury (4.7 km)
- Cell towers in Les Loges-en-Josas (5 km)
- Cell towers in Versailles (5.6 km)
- Cell towers in Villiers-le-Bacle (6 km)
- Cell towers in Le Chesnay (6.5 km)
- Cell towers in Viroflay (7.1 km)
- Cell towers in Jouy-en-Josas (7.2 km)
- Cell towers in Saint-Remy-les-Chevreuse (7.4 km)
- Cell towers in Rocquencourt (7.5 km)
- Cell towers in Bailly (7.6 km)
- Cell towers in Noisy-le-Roi (7.9 km)
- Cell towers in Chevreuse (8 km)
- Cell towers in Villepreux (8.3 km)
- Cell towers in Saclay (8.3 km)
- Cell towers in Les Clayes-sous-Bois (8.4 km)
Data source: ANFR — Licence Ouverte 2.0. See all sources.