Cell towers in Lisses (Essonne)

Place names on the register include La Ferme des Folies, 15 Rue des Cerisiers, rue du Bourdonnais, Avenue des Parcs, Les Hauts Cornus and 1 Rue du Bois Chaland.

2021 was the busiest year, with 21 new systems, most of them 5G. Free Mobile switched on the first 5G here in December 2020; Orange followed in May 2021, Bouygues Telecom followed in July 2021. The oldest transmitter still listed here goes back to 2002.

Approved additions not yet in service are pending on one existing mast, for example SFR (5G 2100 MHz) at rue du Bourdonnais. 7 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 97 m radio relay tower at Les Hauts Cornus as the tallest structure. The median height of measured supports is 26 m.

Of the 12 masts in the commune, Bouygues Telecom is the only carrier on 4 masts.

By mast count, Lisses is 25th of the 60 Essonne towns that have five or more. With 12 masts for 7,373 residents, or 16 per 10,000, it has more masts per inhabitant than the median for those towns (7).

3.5 GHz 5G is declared by Bouygues Telecom on 4 of its 5 masts, Orange on all 4 masts, Free Mobile on 3 of its 4 masts and SFR on 2 of its 3 masts.

3.5 km to the west, neighbouring Bondoufle has a camouflaged "tree" pylon among its supports.

7,373 residents over 10 km²: supports are mostly pylons, not rooftops. It is part of the CA Grand Paris Sud Seine Essonne Sénart intercommunal grouping.

Most of the town's 12 masts are pylons (8).

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