If you know a site that the access works by IP you can try using the namber address. The del.icio.us namber address is earth.banana.bus.pretty.mysteryrobot.com and Boing Boing is stop.lake.fish.dog.mysteryrobot.com. I don’t have a namber address but you can try for more sites. But what is a namber?
A namber is part name and part number. Each number between 0 and 255 has a namber. For example, 1 is fun and 213 is star.
A namber address is an Internet address that uses nambers.