Cell towers in Montauban-de-Bretagne

Most of the town's 5 masts are pylons (4); 1 church or religious building make up the rest of the mix.

Masts stand at ZA la Gautrais, Eglise, La Chenaie, La Touche and Sévériac.

The declared supports are a 39 m pylon, at ZA la Gautrais, for Bouygues Telecom and SFR; a 35 m church or religious building, at Eglise, for Orange; a 41 m pylon, at La Chenaie, for Free Mobile; a 45 m pylon, at La Touche, for Orange; a 47 m pylon, at Sévériac, for Bouygues Telecom, Free Mobile and SFR.

ANFR lists a 47 m pylon at Sévériac as the tallest structure. The median is 41 m, above the Ille-et-Vilaine median of 33 m.

ANFR has approved one new site that is not live yet, plus additions on 2 existing masts. New: Bouygues Telecom (4G and 5G) at La Ville Bouede and SFR (3G, 4G and 5G) at La Ville Bouede. 4 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

On 3.5 GHz, the fastest 5G band: Bouygues Telecom on all 2 masts and SFR on all 2 masts.

Systems from 2011 are still on the register. Free Mobile opened 5G here in March 2021; Bouygues Telecom followed in March 2023, SFR followed in March 2023. 2017 was the busiest year, with 16 new systems, most of them 4G.

The widest declared gap between neighbouring supports is about 3.4 km, to the west of the centre.

Iffendic lies 7.7 km to the south and has 6 masts declared.

Among the 36 Ille-et-Vilaine towns with at least five masts, Montauban-de-Bretagne ranks 32nd by mast count. With 5 masts for 6,597 residents, or 8 per 10,000, it has fewer masts per inhabitant than the median for those towns (10).

Figures above cover installations declared to ANFR as in service or technically operational, as of October 2026; approved projects are not counted.