This number was on my caller ID today.  It also stated "Out of Area".  No message was left on my answer machine.

This person has been calling every day and not leaving a message.

Same this number calls me almost daily, answer, no one on other end, trying calling number and get recording the number I am calling is invalid...

This is very annoying...

I keep getting calls from this number, often dead silence hang ups.. finally today I get the robo-recorded message it must have been trying to deliver to me for multiple times a day each day for the last week...

political message by Rodger Koopman
http://www.newsobserver.com/1172/index.html

I did not even listen to message, which is a shame.. I could very well agree with this guy politically, but for me it was the exasperation of dealing with this annoying unknown hang up calls for a week, and annoyed realization of what it was, or what it was for.

704-111-1000 KEEP RECEIVING CALLS FROM THIS NUMBER WITH NO REPLY. I TRY TO CALL THIS NUMBER AND RECEIVE A BUSY SIGNAL.