Who called from 4844944920

Not sure who that was....hopefully it was a mistake, but when I called back with *67 someone picked up and hung up right away!

Caller did not leave message on answering machine.

Received a call from this number today @ 1:38pm EST.  Caller left no message. No name shows up for caller Id.  This is 2nd day in a row that I have received a call at same time from unknown number & caller leaves no message.   Believe it to be a scammer of some kind. Be wary.