Cell towers in Saint-Claude (Jura)

Masts stand at Cité de Serger, 20 rue des Arrivoirs, Mouton en Haut, Cinquétral, Le Chateau de Chevry and 1 Rue du General de Gaulle.

Systems from 2004 are still on the register. Free Mobile switched on the first 5G here in December 2020; Bouygues Telecom followed in December 2022, Orange followed in January 2023. 2021 was the busiest year, with 33 new systems, most of them 4G.

Over the past 12 months ANFR recorded 29 new systems here. Approved additions not yet in service are pending on 3 existing masts, for example Bouygues Telecom (3G 900 MHz) at Le Chateau de Chevry, Bouygues Telecom (4G 2100 MHz) at 4 rue de Beauregard and Bouygues Telecom (3G, 4G and 5G, including 5G at 3.5 GHz) at 32 rue Henri Dunand. 9 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 37 m building at 1 Rue du General de Gaulle as the tallest structure. The median is 30 m, above the Jura median of 26 m.

6 supports carry only Orange.

On 3.5 GHz, the fastest 5G band: Orange on 5 of its 7 masts, Bouygues Telecom on 2 of its 7 masts, SFR on 2 of its 6 masts and Free Mobile on 1 of its 4 masts.

The widest declared gap between neighbouring supports is about 6.8 km, to the north-east of the centre.

Nearby, Gex (16 km to the east) has only 5 masts.

8 buildings and 7 pylons 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.