Cell towers in Guilers (Finistère)

1 church or religious building and 6 pylons carry the commune's antennas.

Place names on the register include Kerampennec, rue Champollion, Parc des Expositions de Brest, Rue de la Plaine, 30 rue Mez Antellou and 4 Rue Berthelot.

The commune owns 2 of the 7 masts, Totem owns 2.

2016 was the busiest year, with 19 new systems, most of them 4G. Local 5G started with Bouygues Telecom in July 2021; SFR followed in March 2022, Orange followed in March 2022. The oldest transmitter still listed here goes back to 1998.

9 systems were switched on in the past 12 months. Approved additions not yet in service are pending on one existing mast, for example Free Mobile (4G and 5G) at 4 Rue Berthelot. 4 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The highest support stands 39 m at rue Champollion (pylon). The median height of measured supports is 31 m.

3.5 GHz 5G is declared by Orange on all 3 masts, SFR on 3 of its 4 masts, Bouygues Telecom on all 2 masts and Free Mobile on 1 of its 3 masts. 71% of the town's masts carry 5G, fewer than across Finistère towns with five or more masts (85%).

Supports leave a gap of about 1.6 km to the south-east of the centre.

6.7 km to the south-west, neighbouring Plouzane has 10 masts, more than here.

Of the 7 masts in the commune, only one mast carries all four networks.

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