Cell towers in Saint-Martin-d'Heres (Isère)

Place names on the register include 17 Rue du Docteur Fayollat, 2 rue Georges Perec, 8 avenue Romain Rolland, 12 rue Gérard Philippe, 236 Avenue Ambroise Croizat and 101 A Avenue Benoit Frachon.

The highest support stands 47 m at 2 rue Georges Perec (pylon). The median is 22 m, slightly below the Isère median of 26 m.

2013 was the busiest year, with 56 new systems, most of them 4G. Bouygues Telecom opened 5G here in November 2020; Free Mobile followed in December 2020, Orange followed in March 2021. The oldest transmitter still listed here goes back to 1997.

27 systems were switched on in the past 12 months. Approved additions not yet in service are pending on 4 existing masts, for example Bouygues Telecom (4G and 5G) at 12 rue Gérard Philippe, Free Mobile (4G and 5G) at 2 rue Georges Perec and Free Mobile (5G 700 MHz) at 20bis Rue Barnave. 12 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

By mast count, Saint-Martin-d'Heres is 2nd of the 43 Isère towns that have five or more. With 24 masts for 37,695 residents, or 6 per 10,000, it has fewer masts per inhabitant than the median for those towns (9).

3.5 GHz 5G is declared by Orange on all 9 masts, Free Mobile on 8 of its 9 masts, SFR on all 8 masts and Bouygues Telecom on 5 of its 7 masts.

2.1 km to the east, neighbouring Gieres has only 8 masts.

Of the 24 masts in the commune, Orange is the only carrier on 6 masts.

Most of the town's 24 masts are buildings (12).

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