Who called from 8137036959

I have received several calls from this number when I call back it staes the number is not good, but then someone calls from this number again.  Weird.

They called me today and tried to call back same thing happened to me weird maybe a scam?!

got a call and said hello twice no answer from caller but when I said speak up fool a woman spoke just as I was hanging up....strange...bet she won't call back again...

woman called no answer twice when i say hello but when i said speak up fool she suddenly wanted to talk, i hung up...bet she does not call back

this number call when I call back it's disconnected.. how can this be unless its a outbound # only?????