All the spam sources are recorded and kept on a RBL server named all.s5h.net. The all represents a collated list of all sources that send spam in one form or another to any of the maintainers server.
spammy netblock http://www.usenix.org.uk/wiki/RBL
Is the information on our site wrong or incomplete? You don't want us to monitor your blacklist? Or do you operate a similar blacklist? We would like to hear from you!