Cell towers in Ris-Orangis (Essonne)

Declared supports include 2 camouflaged "tree" pylons, with buildings making up most of the remainder.

Place names on the register include 8 rue du Front Populaire, Rue Pierre Brossolette, rue Johnstone Reckitt, 2 avenue Henri Sellier, 4 avenue Henri Sellier and 39 Avenue de la Liberation.

21 systems were switched on in the past 12 months. ANFR has approved 2 new sites that are not live yet, plus additions on 2 existing masts. New: Orange (3G, 4G and 5G, including 5G at 3.5 GHz) at Stade Fromont and SFR (4G) at Rue de Valmy. 16 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2020 was the busiest year, with 34 new systems, most of them 5G. Bouygues Telecom opened 5G here in November 2020; Free Mobile followed in December 2020, SFR followed in December 2020. The oldest transmitter still listed here goes back to 1996.

14 of the 22 masts are rooftop-mounted. The tallest support is 50 m at 4 avenue Henri Sellier (building). The median height of measured supports is 28 m.

3.5 GHz 5G is declared by Bouygues Telecom on all 8 masts, Free Mobile on 7 of its 9 masts, SFR on 6 of its 7 masts and Orange on 5 of its 6 masts.

Grigny lies 1.6 km to the west and has a underground or tunnel site among its supports.

By mast count, Ris-Orangis is 8th of the 60 Essonne towns that have five or more.

At 8 km² with 31,189 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the CA Grand Paris Sud Seine Essonne Sénart intercommunal grouping.

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