Many people are receiving calls from local looking 03 numbers. You answer because it might be important. Instead, there is total silence. This is not a mistake. It is deliberate. Police warn that some of these calls are used to record voices for cloning.
Most of these calls come from automated systems called dialers (predictive dialers). When you answer, the system confirms your number is active and may record your voice.
If you get a silent call, hang up immediately. Avoid calling back, as this can also possibly connect you to scammers or premium rate lines.
Block the number and use call filters or spam detection apps. Treat your phone number like sensitive information don’t give scammers any chance to exploit it.
The numbers are in the 03-2735* block.