Cell towers in La Trinite-sur-Mer (Morbihan)

Declared supports include 1 camouflaged "tree" pylon, with pylons making up most of the remainder.

Declared locations include Rue du Cabestan, Kerisper, Kervourd'en, Le Port and 4 Impasse du Bout.

Inventory: a 47 m pylon, at Rue du Cabestan, for Bouygues Telecom, Free Mobile and SFR; a 23 m pylon, at Kerisper, for Bouygues Telecom and SFR; a 27 m camouflaged "tree" pylon, at Kervourd'en, for Bouygues Telecom, Orange and SFR; a 10 m building, at Le Port, for Free Mobile and Orange; a 40 m pylon, at 4 Impasse du Bout, for Orange.

ANFR lists a 47 m pylon at Rue du Cabestan as the tallest structure. The median is 27 m, slightly below the Morbihan median of 35 m.

ANFR has approved one new site that is not live yet, plus additions on one existing mast. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at Parc des Bruyeres. 6 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2017 was the busiest year, with 15 new systems, most of them 4G. Local 5G started with Free Mobile in February 2021; Bouygues Telecom followed in January 2022, SFR followed in July 2022. The oldest transmitter still listed here goes back to 1996.

By mast count, La Trinite-sur-Mer is 30th of the 35 Morbihan towns that have five or more.

3.5 GHz 5G is declared by Bouygues Telecom on all 3 masts, SFR on all 3 masts, Free Mobile on all 2 masts and Orange on 2 of its 3 masts. 100% of the town's masts carry 5G, more than across Morbihan towns with five or more masts (87%).

Nearby, Carnac (3.6 km to the west) has 12 masts, more than here.

Of the 5 masts in the commune, 4 of the 5 masts host at least two operators.

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