Cell towers in Saint-Marcellin (Isère)

Declared locations include Les Echavagnes, 6 Rue du Stade, Chem de Ronchive and Bas Plan.

Inventory: a 25 m pylon, at Les Echavagnes, for Bouygues Telecom, Free Mobile and SFR; a 31 m pylon, at 6 Rue du Stade, for Free Mobile; a 42 m pylon, at Chem de Ronchive, for Bouygues Telecom, Orange and SFR; a 30 m pylon, at Bas Plan, for Bouygues Telecom, Free Mobile and SFR.

The tallest structure is a 42 m pylon at Chem de Ronchive. The median is 30 m, above the Isère median of 26 m.

2017 was the busiest year, with 21 new systems, most of them 4G. Free Mobile switched on the first 5G here in December 2020; SFR followed in June 2021, Bouygues Telecom followed in September 2021. The oldest transmitter still listed here goes back to 1997.

8 systems were switched on in the past 12 months. 5 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

TDF is the largest declared owner (2 masts), ahead of Totem (1).

3.5 GHz 5G is declared by Free Mobile on all 3 masts, Bouygues Telecom on 2 of its 3 masts, Orange on all 2 masts and SFR on 2 of its 3 masts.

Supports leave a gap of about 1.7 km to the south-east of the centre.

Nearby, Vinay (9.6 km to the north-east) has 5 masts declared.

Of the 5 masts in the commune, 3 of the 5 masts host at least two operators.

By mast count, Saint-Marcellin is 40th of the 43 Isère towns that have five or more. With 5 masts for 7,700 residents, or 6 per 10,000, it has fewer masts per inhabitant than the median for those towns (9).

Supports split between 4 pylons and 1 building.

Of the 86 systems declared here, 20 are installed but not yet in commercial service (ANFR, as of October 2026).