Cell towers in Carnac (Morbihan)

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

Place names on the register include Route du Purgatoire - D119, Chem du Nilestrec, 82 Avenue des Druides, Kerallan, ZA de Montauban and Chemin de Nilestrec.

ANFR has approved one new site that is not live yet, plus additions on 2 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 12 Boulevard de la Plage. 7 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 32 m pylon at ZA de Montauban as the tallest structure. The median is 25 m, slightly below the Morbihan median of 35 m.

2017 was the busiest year, with 32 new systems, most of them 4G. Local 5G started with Free Mobile in December 2020; Bouygues Telecom followed in September 2022, Orange followed in February 2023. The oldest transmitter still listed here goes back to 1999.

Of the 12 masts in the commune, Orange is the only carrier on 6 masts.

By mast count, Carnac is 3rd of the 35 Morbihan towns that have five or more. With 12 masts for 4,194 residents, or 29 per 10,000, it has more masts per inhabitant than the median for those towns (10).

3.5 GHz 5G is declared by Bouygues Telecom on 3 of its 4 masts, Free Mobile on all 3 masts, Orange on 3 of its 6 masts and SFR on 3 of its 4 masts.

3.6 km to the east, neighbouring La Trinite-sur-Mer has only 5 masts.

Supports leave a gap of about 2.4 km to the north-east of the centre.

4,194 residents over 34 km²: supports are mostly pylons, not rooftops. It is part of the CC Auray Quiberon Terre Atlantique intercommunal grouping.

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