dh.ircnet.ne.jp
 |- dev.ircnet.ne.jp
 `- irc.media.kyoto-u.ac.jp
     `- hub.uk
         |- *.nl
         |   |- *.it
         |   |- *.fi
         |   |   |- *.cz
         |   |   `- *.no
         |   `- hub.us.ircnet.com
         |       `- dev.ircnet.ca
         |- *.si
         |- hub.us
         |- ircnet.hostsailor.com
         |- tngnet.ircnet.io
         |- *.hu
         |   |- irc.atw-inter.net
         |   `- ssl.irc.atw-inter.net
         |- irc.us.ircnet.net
         |- *.ee
         |- irc.swepipe.net
         |- *.onion
         |- irc.nlnog.net
         |- *.be
         |- irc.psychz.net
         |- *.pl
         |- tempest.ircnet.io
         |- irc.spadhausen.com
         |- *.DE
         |   `- *.at
         `- *.se
             `- *.dotsrc.org