All of my re conditioned samsung phoes, latest the S23 utra, have shown a phone number that's nit mine, I expect it may be the phoes original number? Mynumbwr is correct when I go in to samsung settings. I don't think.it matters but may display if I call or text from my phone on another device? Does anyone know if this can be changed? Ive tried often over the years. Thanks it's as shown. The 07596 isn't mine.
It's the original SIM card phone number. You've probably moved networks at some point and taken your number with you. Mines the same. It can't be changed unfortunately but doesn't affect anything.