Who called from 6143445007

Keeps calling.  Noone ever responds. Just dosconnects after i answer,  and never leaves messages when i dont.

just called.  this is the second time, first time was on Friday.  No voicemail.  I don't recognize that number.  Blocking it now.

called me many times, i decided to answer one day and a female replayed to me, as soon as i said hello they end the call
i really want to know who is this

I've had 5 calls in the past 24 hours. I don't answer calls that I don't know the number. They don't leave a message.

Called me but didn't leave a voicemail.  I called back and it was a recording say m saying "hi this John a college advisor" then repeated it and then hung up