keep calling about warranty expiring on my cars?

Got a call from this number but did not pick up since I don't recognize the area code or number.  They did not leave a message.

GOT A CALL FROM THIS NUMBER BUT DID NOT RECOGNIZE IT. NOBODY LEFT A MESSAGE. I THINK THAT PEOPLE CAN ACCESS OTHERS CELL PHONES AND JUST CALL TO SELL SOMETHING. THEY SHOULD BE HELD LIABLE FOR SELLING OUR PHONE NUMBERS.

Mr appliance callback to verify if servicecall  was good and extended warranty offer-