Cell towers in Steenwerck (Nord)

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

Masts stand at place du Gal de Gaulle, Heystraete, Le Chien Blanc, 6 Rue du Tilleul Dauchy and Rue du Mortier.

The declared supports are a 48 m church or religious building, at place du Gal de Gaulle, for Bouygues Telecom, Free Mobile, Orange and SFR; a 30 m pylon, at Heystraete, for Bouygues Telecom, Free Mobile and SFR; a 25 m pylon, at Le Chien Blanc, for Bouygues Telecom and SFR; a 33 m pylon, at 6 Rue du Tilleul Dauchy, for Free Mobile; a 36 m pylon, at Rue du Mortier, for Orange.

On 3.5 GHz, the fastest 5G band: Bouygues Telecom on 1 of its 3 masts, Orange on 1 of its 2 masts and SFR on 1 of its 3 masts. No 3.5 GHz from Free Mobile here, only 700 MHz. 5G is on 60% of masts here, against 83% across Nord towns with five or more masts.

Systems from 2000 are still on the register. Free Mobile opened 5G here in May 2022; SFR followed in May 2023, Bouygues Telecom followed in May 2023. 2023 was the busiest year, with 12 new systems, most of them 4G.

Approved additions not yet in service are pending on 2 existing masts, for example Free Mobile (4G and 5G) at 6 Rue du Tilleul Dauchy and SFR (3G 900 MHz) at Heystraete. 3 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

ANFR lists a 48 m church or religious building at place du Gal de Gaulle as the tallest structure. The median is 33 m, above the Nord median of 30 m.

Among the 94 Nord towns with at least five masts, Steenwerck ranks 93rd by mast count. With 5 masts for 3,450 residents, or 14 per 10,000, it has more masts per inhabitant than the median for those towns (9).

2 masts belong to TDF and 1 to Totem.

The widest declared gap between neighbouring supports is about 2 km, to the south-east of the centre. Most declared azimuths point outward, along a corridor or valley rather than at the centre.

Nearby, Nieppe (4 km to the east) has 7 masts declared.

Only one mast carries all four networks.

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