Cell towers in La Tronche (Isère)
La Tronche has 7 masts declared to ANFR, used by 4 carriers. ANFR has also approved one new site that is not live yet.
Nearest sites
| Operator | Generation | Distance | Bearing | Source |
|---|---|---|---|---|
| Orange | 5G / 4G / 3G / 2G · 3 sectors | 149 m | 69° E | Verified |
| Free Mobile | 5G / 4G · 3 sectors | 227 m | 189° S | Verified |
| Bouygues Telecom | 5G / 4G / 3G · 3 sectors | 227 m | 189° S | Verified |
| SFR | 4G / 3G / 2G · 3 sectors | 376 m | 203° SW | Verified |
| Bouygues Telecom | 5G / 4G / 3G / 2G · 3 sectors | 505 m | 139° SE | Verified |
| Orange | 5G / 4G / 3G / 2G · 3 sectors | 667 m | 256° W | Verified |
| SFR | 5G / 4G / 3G / 2G · 3 sectors | 667 m | 256° W | Verified |
| Orange | 5G / 4G / 3G / 2G · 2 sectors | 1 km | 188° S | Verified |
| Free Mobile | 5G / 4G · 3 sectors | 1.1 km | 87° E | Verified |
| Orange | 5G / 4G / 3G / 2G · 3 sectors | 1.1 km | 87° E | Verified |
Map
Carrier breakdown
| Operator | Sites | Share |
|---|---|---|
| Orange | 3 | 42.9% |
| SFR | 3 | 42.9% |
| Bouygues Telecom | 2 | 28.6% |
| Free Mobile | 1 | 14.3% |
Masts stand at 23 avenue des Maquis du Gresivaudan, Chem de la Carronnerie, 115 Grande Rue, 8 Avenue des Maquis du Grésivaudan, R. du Cimetière du Sablon and 1 Place Commandant Nal.
ANFR has approved one new site that is not live yet, plus additions on one existing mast. New: Bouygues Telecom (4G and 5G, including 5G at 3.5 GHz) at Le Replat. 3 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.
Most antennas sit on rooftops (6 of 7), so heights stay modest; the tallest support is 41 m at Chem de la Carronnerie.
2 masts belong to the commune itself; the rest sit mainly on private buildings.
Systems from 1997 are still on the register. Local 5G started with Bouygues Telecom in November 2020; Free Mobile followed in December 2020, Orange followed in March 2021. 2014 was the busiest year, with 11 new systems, most of them 4G.
On 3.5 GHz, the fastest 5G band: Orange on all 3 masts, SFR on 2 of its 3 masts, Bouygues Telecom on 1 of its 2 masts and Free Mobile on its only mast.
Nearby, Saint-Martin-le-Vinoux (2.4 km to the west) has a higher 5G share (100%).
6 buildings and 1 pylon carry the commune's antennas.
Figures above cover installations declared to ANFR as in service or technically operational, as of October 2026; approved projects are not counted.
Frequently asked questions
- Are new antennas planned in La Tronche?
- ANFR has approved one new site that is not live yet, plus additions on one existing mast. New: Bouygues Telecom (4G and 5G, including 5G at 3.5 GHz) at Le Replat.
- Where is the tallest mast in La Tronche?
- The tallest declared support is 41 m at Chem de la Carronnerie (building).
- Are there antennas on public buildings in La Tronche?
- 3 masts are declared as belonging to a public body.
- When did 5G arrive in La Tronche?
- Bouygues Telecom declared the first 5G in November 2020, Free Mobile in December 2020.
- Who broadcasts 3.5 GHz in La Tronche?
- 3.5 GHz 5G is declared by Orange on all 3 masts, SFR on 2 of its 3 masts, Bouygues Telecom on 1 of its 2 masts and Free Mobile on its only mast. Band details in the 5G-by-carrier guide.
Nearby places
- Cell towers in Saint-Martin-le-Vinoux (2.4 km)
- Cell towers in Meylan (2.5 km)
- Cell towers in Saint-Martin-d'Heres (3.2 km)
- Cell towers in Grenoble (3.8 km)
- Cell towers in Gieres (4.4 km)
- Cell towers in Fontaine (4.8 km)
- Cell towers in Seyssinet-Pariset (5.2 km)
- Cell towers in Saint-Egreve (6 km)
- Cell towers in Eybens (6.4 km)
- Cell towers in Echirolles (7 km)
- Cell towers in Le Versoud (9.5 km)
- Cell towers in Claix (11.1 km)
- Cell towers in Voreppe (13.4 km)
- Cell towers in Saint-Hilaire (15.1 km)
- Cell towers in Vif (17.5 km)
- Cell towers in Moirans (20.6 km)
- Cell towers in Voiron (21.8 km)
- Cell towers in Vinay (26.7 km)
- Cell towers in Huez (28.1 km)
- Cell towers in Saint-Marcellin (34.3 km)
- Cell towers in Roybon (39.8 km)
- Cell towers in La Motte-Servolex (44.6 km)
- Cell towers in Aix-les-Bains (55.6 km)
- Cell towers in Romans-sur-Isere (56.2 km)
Useful guides
- How to find the cell towers near youFour ways to locate the mobile masts around an address, from official regulator records to crowdsourced maps and your own phone, and how to tell which one you are actually connected to.
- Where to put a 4G or 5G router for the best signalA step-by-step method to place a 4G/5G home router: find your carrier's nearest mast and its direction, pick the right window, then fine-tune with RSRP and SINR readings instead of signal bars.
- Why is my mobile signal bad at home? Causes and fixesThe usual reasons for poor mobile reception indoors, from distance and terrain to building materials, busy cells and the phone itself, and what actually helps for each one.
Data source: ANFR — Licence Ouverte 2.0. See all sources.