Cell towers in Gagny (Seine-Saint-Denis)

Masts stand at 1bis place du Général de Gaulle, RTE du 19 Mars 1962 Bat A, 8 Domaine des Sept Iles, Franceville, Le Chenay and 96 Chemin des Bourdons.

Over the past 12 months ANFR recorded 12 new systems here. ANFR has approved 2 new sites that are not live yet, plus additions on 7 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 67-69 Avenue Jean Jaurès. 14 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

Systems from 1996 are still on the register. Local 5G started with Bouygues Telecom in November 2020; SFR followed in December 2020, Free Mobile followed in January 2021. 2021 was the busiest year, with 34 new systems, most of them 5G.

Most antennas sit on rooftops (21 of 24), so heights stay modest; the tallest support is 61 m at 1 Rue José Giner.

On 3.5 GHz, the fastest 5G band: Free Mobile on all 9 masts, Bouygues Telecom on 7 of its 8 masts, Orange on 7 of its 8 masts and SFR on 6 of its 9 masts.

Le Raincy lies 1.9 km to the north-west and has only 8 masts.

Most declared azimuths point outward, along a corridor or valley rather than at the centre.

At 7 km² with 42,313 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.

Supports split between 21 buildings and 3 pylons.

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