Makes sense that some local working at a phone exchange would do this. I dont think cris would stoop to that. It also makes sense that you cant block it from an 800 number as they get a bill showing everyone who called. Anyway, the number you dial to block calls within the US is *67. They started calling me after I called only one spot down there which would never sell my number to anyone. IMO definately someone working for a phone company. He may be reading this right now. He is going to be in deep shit. Bye Bye pensione.