Who called from 9142004668

They just call...no message. Sometimes two or three hours apart, a couple of times a day.

They call non-stop day after day.  No answer on the other end of the line.  I suspect this is a "recon" service attempting to call random numbers and when you answer, they register the number of live and active.

They keep changing their numbers too.  

Some times a lady voice recording  or man voice but they answer when u call back

calling me by name saying pick up but don't say who they are.  Tried calling back and get recording to state my number if I want to be put on 'DO NOT CALL LIST'  I am already registered on Do Not Call