IRC Server List

The Biggest

• EFnet (Local)
• Undernet
• IRCnet (Local)
• DALnet (Local. Port 7000)
• Quakenet

The medium networks

• Newnet
• Galaxynet
• ChatNet
• AUSTnet
• WebNet (Port 7000)

The smaller networks

• XWorld
• MultiNET (Local)
• SorceryNet (Port 9000)
• Valhall.Net (Port 7000)
• WarpedNet
• WWFIN (Local)
• StarLink
• StarLink-IRC
• FEFnet
• KnightNet (Port 5555)
• BeyondIRC
• SuperChat
• MysticalNet
• k0w.com
• AfterNET
• GammaNet
• XNet
• FireStar
• Othernet
• StarChat
• SandNET
• CastleNet
• EsperNet (Port 5555)
• EICN
• GammaForce
• NightStar
• zuh.net
• EdNet
• AlterNet (Local. Port 4110)
• FDFnet
• Asianet
• WorldIRC
• Tri-net
• PhishyNet
• AxisNet
• Shadowfire
• Millenia
• AlternativeNet
• DifferentNET
• Wolfnet-IRC
• ChatPR
• Afterburn.Net
• NetLink-IRC
• AceStar
• JellyBelly.Net
• DreamNet
• DarkFire (Port 8000)
• Krush.Net
• SubNet
• CabalNet (Port 5000)

Subject networks

• AmigaNET
• Open Projects Net
• Kidsworld
• ScoutLink
• BDSM-net

Regional networks

• Argentina: SurNet
• Australia: Oz.Org
• Australia: Gumtree
• Australia (Western):PerthNet
• Brazil: BrasIRC
• Brazil: BrasNET
• Brazil: RedeBrasil
• Bulgaria: UniBG
• Germany: BlafaselNet (Local)
• Germany: Wunder-Nett
• Greece: GRnet
• Italy: IRCity
• Indonesia: Allnetwork
• Malaysia: RinduNET
• Netherlands: ZoNet
• Portugal: PTnet
• Russia/Former Soviet Union: RusNet (Local)
• South Africa: ZAnet
• South Africa:LagNet
• Spain: IRC-Hispano
• Switzerland (German):FunChat
• Turkey: TrIrcNet (Local) 

source: www.irchelp.org