Cell towers in Guer (Morbihan)

Masts stand at Les Vaux, Le Bois Cahello, La Theihais, L'Abbaye and Val Coric.

The declared supports are a 39 m pylon, at Les Vaux, for Free Mobile; a 30 m pylon, at Le Bois Cahello, for Orange; a 36 m pylon, at La Theihais, for Orange; a 48 m pylon, at L'Abbaye, for Bouygues Telecom, Orange and SFR; a 42 m pylon, at Val Coric, for Free Mobile.

The tallest structure is a 48 m pylon at L'Abbaye. The median is 39 m, above the Morbihan median of 35 m.

Systems from 2000 are still on the register. Free Mobile opened 5G here in December 2020; Orange followed in November 2025, Bouygues Telecom followed in June 2026. 2026 was the busiest year, with 9 new systems, most of them 4G.

Over the past 12 months ANFR recorded 11 new systems here. Approved additions not yet in service are pending on one existing mast, for example SFR (5G 2100 MHz) at L'Abbaye. 2 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

3 masts belong to TDF and 1 to Totem.

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

The widest declared gap between neighbouring supports is about 4.9 km, to the south of the centre.

Iffendic lies 26 km to the north and has 6 masts declared.

Among the 35 Morbihan towns with at least five masts, Guer ranks 28th by mast count. With 5 masts for 6,208 residents, or 8 per 10,000, it has fewer masts per inhabitant than the median for those towns (10).

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