Cell towers in Seysses (Haute-Garonne)

1 water tower and 7 pylons carry the commune's antennas.

Masts stand at Caussines, Lamothe, 500 Chemin des Boulbenes, RTE de Labastidette, 550 avenue de Toulouse and Route de Fonsorbes.

Systems from 1998 are still on the register. Free Mobile opened 5G here in December 2020; Orange followed in July 2021, Bouygues Telecom followed in November 2021. 2019 was the busiest year, with 13 new systems, most of them 4G.

Approved additions not yet in service are pending on 3 existing masts, for example Bouygues Telecom (3G 900 MHz) at 30 RTE D'Ox, Free Mobile (4G and 5G, including 5G at 3.5 GHz) at Lamothe and SFR (5G, including 5G at 3.5 GHz) at 550 avenue de Toulouse. 8 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The tallest structure is a 50 m water tower at 550 avenue de Toulouse. The median height of measured supports is 32 m.

3 supports carry only Bouygues Telecom.

On 3.5 GHz, the fastest 5G band: Bouygues Telecom on all 4 masts, Orange on all 3 masts and Free Mobile on all 2 masts.

The widest declared gap between neighbouring supports is about 3.5 km, to the west of the centre.

7.6 km to the north, neighbouring Plaisance-du-Touch has less 5G (75%).

10,539 residents over 25 km²: supports are mostly pylons, not rooftops.

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