Cell towers in Rosny-sous-Bois

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

Declared supports include 2 bridges or viaducts and 2 underground or tunnel sites, with buildings making up most of the remainder.

Masts stand at rue des Graviers, Métro Rosny_bois_perrier_l11, 10 rue des Anciens Combattants D'Afrique du Nord, Métro La_dhuys_l11, Rue Jean Mermoz and 1 rue Nungesser et Coli.

Most antennas sit on rooftops (29 of 35), so heights stay modest; the tallest support is 60 m at 3 Rue Niepce.

Systems from 1999 are still on the register. Local 5G started with Bouygues Telecom in November 2020; Free Mobile followed in December 2020, SFR followed in December 2020. 2013 was the busiest year, with 52 new systems, most of them 4G.

Over the past 12 months ANFR recorded 24 new systems here. Approved additions not yet in service are pending on 9 existing masts, for example Bouygues Telecom (4G and 5G) at 5 rue de Lisbonne, Bouygues Telecom (4G 2100 MHz) at 7 rue Philibert Hoffman and Bouygues Telecom (4G 2100 MHz) at 160 rue du Gal Leclerc. 23 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

3 masts carry all four networks.

On 3.5 GHz, the fastest 5G band: Free Mobile on 14 of its 15 masts, Bouygues Telecom on 11 of its 15 masts, Orange on all 10 masts and SFR on 9 of its 11 masts.

Neuilly-Plaisance lies 904 m to the south-east and has only 12 masts.

At 6 km² with 47,180 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.

Figures above cover installations declared to ANFR as in service or technically operational, as of October 2026; approved projects are not counted.