Cell towers in Lognes (Seine-et-Marne)

Masts stand at Parc des Sports du Segrais, 5 rue Jean Monnet, allée des Maronniers, 1-7 Rue Saint Claire Deville, rue Cinna and 5 square Philippe le Bon.

ANFR has approved one new site that is not live yet, plus additions on 2 existing masts. New: Bouygues Telecom (4G and 5G) at 11 allée des Palombes. 7 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 28 m pylon at 2 boulevard du Segrais as the tallest structure. The median is 26 m, slightly below the Seine-et-Marne median of 31 m.

Systems from 2012 are still on the register. Local 5G started with Bouygues Telecom in November 2020; Free Mobile followed in December 2020, SFR followed in April 2023. 2017 was the busiest year, with 19 new systems, most of them 4G.

3 supports carry only Bouygues Telecom.

On 3.5 GHz, the fastest 5G band: SFR on all 3 masts, Bouygues Telecom on 2 of its 5 masts, Free Mobile on 1 of its 2 masts and Orange on 1 of its 2 masts.

Nearby, Noisiel (1.5 km to the north) has less 5G (86%).

Supports split between 5 pylons and 4 buildings.

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