Forum:How do I get a list of the IP addresses of anonymous editors?

So in my wiki (warhawk.wikia.com), "Local list users" shows me a list of accounts of people who are on the wiki. How do I get the same for the IP addresses of people that have only contributed anonymously? Or even a subset of that info...show me the 50 most recent anonymous editors? Or the 50 top contributing anonymous editors? I'm not asking for the IP of every anonymous visitor, just the ones that contributed. That info is certainly stored on the wiki, at the least in all the various histories. --Jason C.K. 18:41, September 23, 2009 (UTC)
 * Special:WikiaStats. --Michaeldsuarez (Talk) (Deeds) 18:47, September 23, 2009 (UTC)