Cell towers in Firminy (Loire)

Masts stand at Le Plat du Pinay, Les Trois Ponts, Le Crassier, La Comberie, 7 Rue Marguerite Pepier and 9 place Charles de Gaulle.

Systems from 1996 are still on the register. Bouygues Telecom opened 5G here in November 2020; Free Mobile followed in December 2020, SFR followed in December 2020. 2013 was the busiest year, with 27 new systems, most of them 4G.

5 supports carry only Bouygues Telecom.

On 3.5 GHz, the fastest 5G band: Bouygues Telecom on 5 of its 7 masts, SFR on 5 of its 7 masts, Orange on 3 of its 4 masts and Free Mobile on 2 of its 4 masts.

The highest support stands 56 m (building). The median is 28 m, above the Loire median of 25 m.

12 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

Nearby, Fraisses (1.9 km to the west) has only 5 masts.

Among the 28 Loire towns with at least five masts, Firminy ranks 4th by mast count.

Most of the town's 16 masts are pylons (9).

Of the 159 systems declared here, 34 are installed but not yet in commercial service (ANFR, as of October 2026).