Cell towers in Viry-Chatillon (Essonne)

Place names on the register include avenue de Flandre, ZI les Noues de Seine, 137 Avenue du General de Gaulle, Av. Marmont, impasse Francoeur and 70 Avenue du General de Gaulle.

ANFR has approved 2 new sites that are not live yet, plus additions on 5 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 16 Passage Ferber and SFR (4G and 5G, including 5G at 3.5 GHz) at 2 Rue Martin Luther King. 10 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2014 was the busiest year, with 31 new systems, most of them 4G. Bouygues Telecom switched on the first 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 1994.

12 of the 17 masts are rooftop-mounted. The tallest support is 47 m at 2 rue Bougainville (building). The median height of measured supports is 26 m.

3.5 GHz 5G is declared by Orange on all 7 masts, SFR on all 6 masts, Free Mobile on 5 of its 6 masts and Bouygues Telecom on 4 of its 6 masts.

Nearby, Juvisy-sur-Orge (1.4 km to the north-west) has a church or religious building among its supports.

Of the 17 masts in the commune, only one mast carries all four networks.

At 6 km² with 30,838 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the Métropole du Grand Paris intercommunal grouping.

12 buildings and 5 pylons carry the commune's antennas.

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