Just got a call from this number.  A woman answered, with a strong ethnic accent (one guess what country).  I was given the ever popular "we want to give you a cell phone for free pitch."  I had to keep reminding her that I was still there and to read the next line of her script.  

Usually when I ask for a supervisor, I get hung up on but this time I did get to one and I read him the riot act about these types of calls.  Mentioned laws, illegal numbers, fines with dollar amounts in attempts to spook him.  No clue if it will have *any* effect (I'm not holding my breath) but it was worth a shot.