Calisen
This number is listed by Calisen on its own website (Customer enquiries (meter reading and smart meter services)).
Source: “Customer enquiries: 0161 240 3352” (opens in a new tab). Checked 14 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 Calisen back on a number you've found yourself, such as the one on their own website or on a letter or bill from them.