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!
We keep some statistics on blacklists. Below is the graph for all.s5h.net. We test blacklists by asking them to respond to known IP's that are blacklisted and known IP's that can't be blacklisted. Not every blacklist has such IP's, we test them with what is possible. We keep if we get any response or error messages and the response duration. Lower response times are better. These statistics may be useful for email server administrators to pick which blacklist to use.