Just received a call from 310-202-4320.  6:43pm 11/18/2008  I answered the call & there was silence on the line.  I said hello several times and nothing.

I had the same experience. They've called me twice. It's apparently a scam. I wish I knew how to stop it.

ditto on that.

Receive call today at 9:28am from this number (310-202-4320).  I answered on the third ring.  There was no sound on the other end, and after about 8 seconds, the call disconnected.  I called the number back about 2 minutes later, but heard the "this number has been disconnected or is no longer in service" official message.  WTF?

I got a call from 310-202-4320 at 10:48 AM this morning as well.  This sounds like the same people involved in the attempted bank / wire fraud and identity theft I found yesterday.  If I had to guess, this is probably associated with the charge from GFDL for 19 cents.  This is a scam - be careful!