Cell towers in Acheres (Yvelines)

Declared locations include Champ de Courses D'Entrainement de Fromainville, 1 allée Andre Chenier, La Fosse Bidan, 178 Avenue du General Charles de Gaulle, Les Hautes Plaines and 8 Avenue Wolfgang Amadeus Mozart.

24 systems were switched on in the past 12 months. ANFR has approved one new site that is not live yet, plus additions on 4 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 34 Avenue de Poissy. 12 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2021 was the busiest year, with 25 new systems, most of them 5G. Local 5G started with Bouygues Telecom in November 2020; Free Mobile followed in April 2021, SFR followed in November 2021. The oldest transmitter still listed here goes back to 1996.

ANFR lists a 49 m building at 1 allée Andre Chenier as the tallest structure. The median height of measured supports is 24 m.

Of the 18 masts in the commune, Free Mobile is the only carrier on 7 masts.

3.5 GHz 5G is declared by Free Mobile on 7 of its 8 masts, Bouygues Telecom on 5 of its 7 masts, Orange on all 3 masts and SFR on all 3 masts.

Supports leave a gap of about 5.1 km to the east of the centre.

Carrieres-sous-Poissy lies 2.4 km to the south-west and has only 9 masts.

By mast count, Acheres is 15th of the 62 Yvelines towns that have five or more. With 18 masts for 22,241 residents, or 8 per 10,000, it has more masts per inhabitant than the median for those towns (7).

Most of the town's 18 masts are pylons (9).

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