Cell towers in Bellegarde-sur-Valserine (Ain)

Declared locations include Clos St Nicolas, Le Sorgia D'en Haut, avenue P Langevin, 749 Route des Etournelles, Sorgia D'en Haut and 1 Place Henri Dunant.

2022 was the busiest year, with 44 new systems, most of them 4G. Free Mobile switched on the first 5G here in December 2020; Bouygues Telecom followed in September 2022, SFR followed in October 2022. The oldest transmitter still listed here goes back to 1993.

10 systems were switched on in the past 12 months. Approved additions not yet in service are pending on one existing mast, for example Free Mobile (4G and 5G) at 749 Route des Etournelles. 10 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The highest support stands 47 m at 3 place Henri Dunant (building). The median is 25 m, slightly below the Ain median of 30 m.

Of the 11 masts in the commune, only one mast carries all four networks, and Orange is the only carrier on 4 masts.

3.5 GHz 5G is declared by Orange on all 6 masts, Bouygues Telecom on 4 of its 6 masts, SFR on 4 of its 6 masts and Free Mobile on 1 of its 3 masts.

Nearby, Viry (16 km to the east) has only 7 masts.

By mast count, Bellegarde-sur-Valserine is 5th of the 26 Ain towns that have five or more. With 11 masts for 16,712 residents, or 7 per 10,000, it has fewer masts per inhabitant than the median for those towns (13).

6 buildings and 5 pylons carry the commune's antennas.

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