Cell towers in Plerin (Côtes-d'Armor)

Declared supports include 2 water towers and 1 church or religious building, with pylons making up most of the remainder.

Masts stand at Ste Croix, La Ville Solon, La Ville Corbon, Les Mines, 19 Rue Pierre et Marie Curie and 1 Brindejonc des Moulinais.

Systems from 1995 are still on the register. Free Mobile switched on the first 5G here in December 2020; Orange followed in December 2021, SFR followed in May 2022. 2021 was the busiest year, with 21 new systems, most of them 4G.

Approved additions not yet in service are pending on 3 existing masts, for example Bouygues Telecom (5G 2100 MHz) at Ste Croix, Free Mobile (4G 2100 MHz) at Rue des Terres Noires and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 18 rue Helene Boucher. 3 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

The highest support stands 53 m at Stade Marcel Gouédard (water tower). The median is 38 m, above the Côtes-d'Armor median of 34 m.

Only one mast carries all four networks; 3 supports carry only Orange.

On 3.5 GHz, the fastest 5G band: Orange on 4 of its 5 masts, Bouygues Telecom on 1 of its 5 masts, Free Mobile on 1 of its 5 masts and SFR on 1 of its 5 masts.

2.2 km to the south, neighbouring Saint-Brieuc has 16 masts, more than here.

The widest declared gap between neighbouring supports is about 2.4 km, to the west of the centre.

Among the 30 Côtes-d'Armor towns with at least five masts, Plerin ranks 5th by mast count. With 10 masts for 14,425 residents, or 7 per 10,000, it has fewer masts per inhabitant than the median for those towns (13).

14,425 residents over 28 km²: supports are mostly pylons, not rooftops. It is part of the CA Saint-Brieuc Armor Agglomération intercommunal grouping.

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