I got a call from this number on 09/15/11. They did not leave a message. I called back and got nothing. When I did a reverse look up, it says that this is not a valid phone number.

I got a call 9/14/11 @ 12:15 and they listen and I hung up??? someone needs to follow up on it

I get a call from this number - no one answers when I say hello - they hang up.  I try and call back and the number gets picked up and then quickly disconnects.

this number calls ever day, asks for the owner of the house and hangs up. whats going on?