This information aesthetics post has an “extremely detailed map of the North American Internet backbone including 134,855 routers.The colors represent who each router is registered to:red is Verizon,blue AT&T,yellow Qwest,green is major backbone players like Level 3 & Sprint Nextel,black is the entire cable industry put together,& gray is everyone else,from small telecommunications companies to large international players who only have a small presence in the U.S”. internet backbone map [Smart Mobs]