UK Power Networks
This number is listed by UK Power Networks on its own website (Heat pumps, meter boxes, fuses, cables and work near power lines).
Source: “Free to call from a mobile or landline phones.” (opens in a new tab). Checked 13 October 2026.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call UK Power Networks back on a number you've found yourself, such as the one on their own website or on a letter or bill from them.