Yup, some guy with a southern accent asking for "Dilbert." He's called me twice now. Same scenario. He asks for Dilbert, I tell him he has the wrong number, then he says 'well maybe you can help me.' Yeah, I don't think so.
Received a call from this number asking for a particular person. I said that person was not available and he said no message and would call back later. Southern accent. Added number to block list.