A wishlist of IRC networks to be bridged is being collected in a github issue.

Network Name Room alias format Appservice user Room for Support Operator
darkfasel #channame:darkfasel.net [@IRC-Darkfasel:darkfasel.net] [#darkfasel:darkfasel.net] darkfasel
fc00 #fc00-irc_#channame:m.trnsz.com [@fc00ircmtx:m.trnsz.com] None
freenode[^1] #freenode_#channame:matrix.org [@appservice-irc:matrix.org][^2] [#irc:matrix.org] Matrix.org
GIMPNet[^3] #_gimpnet_#channame:gnome.org [@gimpnet-irc:gnome.org][^4] [#irc:matrix.org] Matrix.org / Gnome.org
IRCnet #_ircnet_#channame:irc.snt.utwente.nl [@ircnet:irc.snt.utwente.nl] [#ircnet:utwente.io] SNT
OFTC #_oftc_#channame:matrix.org [@oftc-irc:matrix.org] [#irc:matrix.org] Matrix.org
PirateIRC #pirateirc_#channame:diasp.in [@pirateirc:diasp.in] [#diasp.in:diasp.in] Indian Pirates
Snoonet #_snoonet_#channame:matrix.org [@snoonet-irc:matrix.org] [#irc:matrix.org] Matrix.org
Tweakers.net #_tweakers_#channame:irc.snt.utwente.nl [@tweakers:irc.snt.utwente.nl] [#tweakers-irc:utwente.io] SNT
irchighway #irchighway_#channame:eggy.cc [@appservice-irc:eggy.cc] [#eggster:eggy.cc] Eggy
W3C #_w3c_#channame:matrix.org [@w3c-irc:matrix.org] [#irc:matrix.org] Matrix.org
libera.chat #channame:libera.chat [@appservice:libera.chat] [#libera-matrix:libera.chat] Matrix.org
LibertaCasa #channame:liberta.casa [@lunatic:liberta.casa] [#help:liberta.casa] LibertaCasa
  • Hackint closed their Matrix bridge on 2018-12-31.
  • Random.sh is no longer contactable. Status of the bridge is unknown.
  • Foonetic IRC has shut down. #xkcd channels moved to slashnet
  • The Espernet bridge was shut down after the 2019 matrix.org network breach.
  • The Moznet IRC network has been shut down. They now run their own Matrix homeserver at chat.mozilla.org 🎉

Footnotes

[^1]: Freenode doesn't have the leading _ as it is older than the practice of putting the underscore to the beginning.

[^2]: This appservice user doesn't have "freenode" in its name because in the past it was used for all matrix.org-hosted bridges.

[^3]: This includes both irc.gimp.org and irc.gnome.org, as they are the same thing.

[^4]: The bridge has moved from matrix.org to gnome.org.