Cell towers in Cassis (Bouches-du-Rhône)

4 supports are declared underground, in a gallery or a tunnel. For questions about exposure, see the exposure guide.

4 underground or tunnel sites and 5 masts, 3 pylons and 3 buildings carry the commune's antennas.

Declared locations include Le Pas de Bellefille, Toit Péage de Cassis, place Georges Clémenceau, Le Vallon des Anglais, Sainte Croix and Quartier les Janots.

ANFR has approved one new site that is not live yet, plus additions on one existing mast. New: Bouygues Telecom (4G and 5G) at Le Bregadan. 9 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 30 m pylon at Baou de la Saoupe as the tallest structure. The median is 12 m, slightly below the Bouches-du-Rhône median of 22 m.

The commune owns 3 of the 19 masts, TDF owns 1.

2016 was the busiest year, with 36 new systems, most of them 4G. Local 5G started with Bouygues Telecom in November 2020; Free Mobile followed in December 2020, Orange followed in June 2021. The oldest transmitter still listed here goes back to 1995.

3.5 GHz 5G is declared by Bouygues Telecom on 4 of its 5 masts, Orange on 3 of its 5 masts, Free Mobile on 2 of its 3 masts and SFR on 1 of its 10 masts. 47% of the town's masts carry 5G, fewer than across Bouches-du-Rhône towns with five or more masts (76%).

Of the 19 masts in the commune, only one mast carries all four networks, and SFR is the only carrier on 9 masts.

By mast count, Cassis is 35th of the 92 Bouches-du-Rhône towns that have five or more. With 19 masts for 6,661 residents, or 29 per 10,000, it has more masts per inhabitant than the median for those towns (13).

Nearby, Roquefort-la-Bedoule (5.6 km to the north-east) has only 9 masts.

6,661 residents over 26 km²: supports are mostly pylons, not rooftops. It is part of the Métropole d'Aix-Marseille-Provence intercommunal grouping.

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