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