Cell towers in Chalo-Saint-Mars
Chalo-Saint-Mars has 46 known cell sites. The densest carrier is Free Mobile with 14.
Nearest sites
| Operator | Generation | Distance | Bearing | Source |
|---|---|---|---|---|
| Orange | NR · 3 sectors | 791 m | 341° N | Verified |
| Orange | GSM · 3 sectors | 791 m | 341° N | Verified |
| Orange | LTE · 3 sectors | 791 m | 341° N | Verified |
| Orange | LTE · 3 sectors | 791 m | 341° N | Verified |
| Orange | LTE · 3 sectors | 791 m | 341° N | Verified |
| Orange | UMTS · 3 sectors | 791 m | 341° N | Verified |
| Bouygues Telecom | LTE · 3 sectors | 791 m | 341° N | Verified |
| Bouygues Telecom | UMTS · 3 sectors | 791 m | 341° N | Verified |
| Bouygues Telecom | GSM · 3 sectors | 791 m | 341° N | Verified |
| SFR | LTE · 3 sectors | 791 m | 341° N | Verified |
Map
Carrier breakdown
| Operator | Sites | Share |
|---|---|---|
| Free Mobile | 14 | 30.4% |
| Orange | 13 | 28.3% |
| SFR | 10 | 21.7% |
| Bouygues Telecom | 9 | 19.6% |
This page lists the known cell sites in Chalo-Saint-Mars in Île-de-France, France. Positions come from ANFR, the regulator — these are surveyed, verified locations, not estimates.
Density here is about 1.2 sites per km², below the national average for this type of area (4.7/km²).
Altogether these sites report 130 sectors, averaging about 2.8 sectors per site.
91.3% 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 0 m — worth knowing if you're hunting for signal nearby.
8.7% of known sites report 5G, below the national figure of 16.2%.
All 46 known sites here come from a regulator-verified source (ANFR).
The most common frequency bands here are 900, 700, 800 MHz, out of 6 distinct bands reported in total.
The nearest known site to the centre of Chalo-Saint-Mars is 791 m away, run by Orange.
4 operators are known here. Ranked by site count: Free Mobile (14, 30.4%), Orange (13, 28.3%), SFR (10, 21.7%), Bouygues Telecom (9, 19.6%).
Free Mobile leads with 30.4% of known sites, 2.2 percentage points ahead of second-placed Orange.
By network generation: 58.7% 4G LTE, 21.7% 3G UMTS, 10.9% 2G GSM, 8.7% 5G.
67.4% 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 Chalo-Saint-Mars?
- 46 known cell sites are mapped in Chalo-Saint-Mars, from ANFR's verified data.
- Which carrier has the most sites in Chalo-Saint-Mars?
- Free Mobile, with 14 sites (30.4% of the known total).
- Is there 5G in Chalo-Saint-Mars?
- 8.7% of known sites in Chalo-Saint-Mars 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 Etampes (7.3 km)
- Cell towers in Saclas (8.4 km)
- Cell towers in Morigny-Champigny (9.2 km)
- Cell towers in Pussay (9.9 km)
- Cell towers in Corbreuse (11.6 km)
- Cell towers in Mereville (12.2 km)
- Cell towers in Dourdan (12.3 km)
- Cell towers in Etrechy (12.5 km)
- Cell towers in Angerville (13.1 km)
- Cell towers in Auvers-Saint-Georges (13.9 km)
- Cell towers in Saint-Cheron (15.2 km)
- Cell towers in Chamarande (15.3 km)
- Cell towers in Le Val-Saint-Germain (15.9 km)
- Cell towers in Saint-Cyr-sous-Dourdan (16.1 km)
- Cell towers in Boissy-le-Cutte (17 km)
- Cell towers in Sermaises (17.5 km)
- Cell towers in Boissy-sous-Saint-Yon (18.1 km)
- Cell towers in Janville-sur-Juine (18.2 km)
- Cell towers in Breuillet (18.3 km)
- Cell towers in Saint-Maurice-Montcouronne (18.3 km)
- Cell towers in Lardy (18.7 km)
- Cell towers in Angervilliers (18.8 km)
- Cell towers in Aunay-sous-Auneau (18.9 km)
- Cell towers in Saint-Arnoult-en-Yvelines (18.9 km)
Data source: ANFR — Licence Ouverte 2.0. See all sources.