This number called me this morning. Given that the number appeared to be blatantly bogus, I chose to ignore it. It stopped after three rings with no message left.

Caller Id: "NAME NOT FOUND"

called while I was on the phone. Tried calling the number back and got a message saying it was an invalid number.

Bogus - Robot caller wants to give away cell phones

I picked up and it was a recorded voice saying: "Hi, this is Nicole, how are you today?" I hung up. Not sure who tried to call.

This number also called me this morning 9:43 a.m., "NAME NOT FOUND," same as above, but did not read out an area code, just 024-5698.  Since I'm in the city of Chicago, it's possible that it also could be 773.  Again same as above, 3 rings and no message left on my answering machine. Probably some robocall system.