Cell towers in Saint-Martin-de-Belleville

Declared supports include 1 church or religious building, 1 camouflaged "tree" pylon and 1 water tower, with buildings making up most of the remainder.

Place names on the register include Larena, La Croisette, La Gouille, Val Thorens, Reberty and Béranger.

39 systems were switched on in the past 12 months. ANFR has approved one new site that is not live yet, plus additions on 4 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 490 Rue du Bouchet. 18 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The commune owns 6 of the 27 masts, TDF owns 3.

2022 was the busiest year, with 76 new systems, most of them 5G. Local 5G started with Free Mobile in December 2020; SFR followed in June 2022, Bouygues Telecom followed in August 2022. The oldest transmitter still listed here goes back to 1997.

The tallest structure is a 64 m church or religious building at Clocher. The median height of measured supports is 24 m.

Of the 27 masts in the commune, 5 masts carry all four networks, and Orange is the only carrier on 9 masts.

By mast count, Saint-Martin-de-Belleville is 2nd of the 18 Savoie towns that have five or more. With 27 masts for 3,498 residents, or 77 per 10,000, it has more masts per inhabitant than the median for those towns (25).

3.5 GHz 5G is declared by SFR on 10 of its 14 masts, Bouygues Telecom on 9 of its 12 masts, Orange on 7 of its 14 masts and Free Mobile on 5 of its 10 masts.

Supports leave a gap of about 3.4 km to the north of the centre.

6.9 km to the north-east, neighbouring Les Allues has only 20 masts.

Source: operator declarations to ANFR, as of October 2026. Projects that are only approved are left out of the totals.