The following is a "last known" list of SAIX transparent proxies being used; these affect the great majority of internet users in South Africa (the proxies listed under "No contributions" are probably not part of the internet-facing side of the clusters):
I've sent an email to Tim Starling (according to meta:XFF project), with the details of the proxies, and he replied that they have been whitelisted. So hopefully the problem is now solved. dewet| ™ 08:23, 24 March 2006 (UTC)