pack of scammers who call from random numbers constantly, even on SUNDAY! complain to your congress person if you are tired of this s#!t. this is what you get from LACK of regulation on the communications industry, it's the wild, wild west. your only option is to discontinue your phone service!
Get a call blocker for your land line and download a call blocking app for your cell. They are fantastic. Here's the 800 notes forum on call blockers;
http://800notes.com/nb/search.aspx?q=call+blockers