dh.ircnet.ne.jp
 `- irc.media.kyoto-u.ac.jp
     `- irc-2112p3.media.kyoto-u.ac.jp
         `- hub.uk
             |- irc.us.ircnet.net
             |- *.ee
             |- *.irc6.net
             |- *.be
             |- *.nl
             |   |- irc.nlnog.net
             |   |- *.fi
             |   |   |- *.no
             |   |   `- *.cz
             |   |- *.si
             |   |- *.hu
             |   |   |- irc.atw-inter.net
             |   |   `- ssl.irc.atw-inter.net
             |   |- *.pl
             |   |   `- *.dotsrc.org
             |   |- *.it
             |   `- *.at
             |       |- *.se
             |       `- *.DE
             `- eris.us.ircnet.net