Which electricity DNO covers postcode SO21?

SO21 (Winchester) is distributed by SSEN (Southern Electric - SEPD). For any street power cut call 105 free 24/7.

Who supplies mains water and gas in SO21?

Water: Southern Water; Gas network: SGN Southern.

SO21 District Winchester (Hampshire)

Live power cut, broadband, mobile 5G, water & gas network telemetry for UK postcode district SO21.

All / Power Broadband Mobile Water Gas

Electricity DNO (105)

SSEN (Southern Electric - SEPD)

Emergency: 105 / 105 / 0800 072 7282

Water & Sewerage Company

Southern Water

Support: 0330 303 0368

Gas Network (0800 111 999)

SGN Southern

Smell gas? 0800 111 999

Provider	Matched District / Area	Status / Affected	ETR / Updated
UK Power Networks	KT23 Dorking (Postcode KT23) — UKPN MULT-c0e6678a-9664-4efd-a7f2-dc52a3b16f93	DNO Active Fault	15 Nov 2026 at 2:17 am GMT
SSEN (Southern Electric - SEPD)	OX3 Oxford (Postcode OX3) — SSEN UJ3717	DNO Active Fault	15 Nov 2026 at 4:00 am GMT
SSEN (Southern Electric - SEPD)	SP11 Charlton (Postcode SP11) — SSEN 255910	DNO Active Fault	15 Nov 2026 at 7:17 am GMT
SSEN (Southern Electric - SEPD)	RG14 Newbury (Postcode RG14) — SSEN UJ3149	DNO Active Fault	15 Nov 2026 at 2:00 am GMT
SSEN (Southern Electric - SEPD)	RG27 Hook (Postcode RG27) — SSEN 254579	DNO Active Fault	23 Nov 2026 at 10:00 am GMT

Share what is happening at your UK postcode to help verify restoration progress for neighbours.

0 Verified Updates

No recent resident comments recorded for this specific location yet. Submit the first postcode update above.