Cell towers in Savigny-sur-Orge (Essonne)

1 water tower and 15 buildings carry the commune's antennas.

Masts stand at Complexe Sportif des Gatines, 15 Allée de la Genestrière, 41 avenue Charles de Gaulle, 6 square Brassens, 32 Rue des Pres Saint-Martin and 34 rue du Président St Martin.

Over the past 12 months ANFR recorded 13 new systems here. ANFR has approved one new site that is not live yet, plus additions on 7 existing masts. New: Orange (4G and 5G, including 5G at 3.5 GHz) at 38 Rue du Mail. 17 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. Bouygues Telecom opened 5G here in October 2020; Free Mobile followed in December 2020, SFR followed in March 2021. 2014 was the busiest year, with 30 new systems, most of them 4G.

Most antennas sit on rooftops (15 of 16), so heights stay modest; the tallest support is 51 m at 3 rue Van Gogh.

2 masts carry all four networks; 6 supports carry only Bouygues Telecom.

On 3.5 GHz, the fastest 5G band: Bouygues Telecom on 8 of its 10 masts, Free Mobile on 5 of its 6 masts, SFR on 5 of its 7 masts and Orange on 2 of its 5 masts.

Morsang-sur-Orge lies 1.7 km to the south and has only 11 masts.

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

Among the 60 Essonne towns with at least five masts, Savigny-sur-Orge ranks 18th by mast count. With 16 masts for 37,601 residents, or 4 per 10,000, it has fewer masts per inhabitant than the median for those towns (7).

At 7 km² with 37,601 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.