Left no message.  Caller ID said Unknown Name.
When searching located this phone number on white pages:
Faun R Antt  Age 65+ Person associated with 7609446283  280 Hillcrest Dr Encinitas CA 92024-1525
Faun R Antt Age: 72 121 Denise Ave
Bakersfield, CA  (661) 322-4204

Robert F Antt  Age: 67  Same address & phone number 7609446283  .
Is it possible that someone has stolen this phone number?

Same. Not in my phone directory I don't answer. If you're really looking for me you'll text. Right!!?!!