Who called from 6505294707

Just got a call from this number, I don't answer numbers I do not know, especially from California, if I'm in Texas. Weird??

First time I've received a spam message at my cell phone number.  It was a recording, announcing it was from some organization (I forget the name) "a 501(c)(4)" (which makes it a political not-for-profit organization) then something about registering to vote.  I hung up and will block that number.

5:06pm 5/20/12 Am on do not call list

3:19pm got call from this number.  I answered - dead silence.  I hope that doesn't encourage a bunch of spam.  GRRR.  Thanks for your notes and comments.

I called it back and it was something about "voter registration" and "unhappy with the way things are going in Washington".