Who called from 6619456740

Called twice, the first time I picked up, said hello and they hung up without saying anything.  The second time, just a call with no message.

Called, didn't leave a message

I too have received a call from this number, many times however. I think its around 5 times now.....

I have recieved at 6 calls from this number and called back a few times and nobody ever answers the phone.

Just received a call on my cell phone.  No message left, no ID.