High Quality Content by WIKIPEDIA articles! Rizon is a large Internet Relay Chat (IRC) network with an average of around 18,000 users. The IRC network itself is well known and ranks number 5 among the largest IRC networks. Rizon is popular with many anime fansubbing groups who work online, many of whom provide their content through XDCC via IRC bots in their distribution channels.File sharing of other copyrighted material such as Warez is also common in some channels on the network.