Undernet Serverliste
| Server name | IP | Ports | IP v6 | Region | Server Sponsor |
| irc.undernet.org | n/a | 6660-6669,7000 | no | WorldWide | |
| irc6.undernet.org | n/a | 6660-6669,7000 | yes | WorldWide | |
| eu6.undernet.org | n/a | 6660-6669,7000 | yes | EU | |
| us6.undernet.org | n/a | 6660-6669,7000 | yes | US | |
| chicago.il.us.undernet.org | 154.35.136.18 | 6660-6669,7000 | yes | US | Rethem Hosting |
| bucharest.ro.eu.undernet.org | 82.76.255.62 | 6660-6669 | no | EU | Romania Data Systems |
| budapest.hu.eu.undernet.org | 94.125.182.255 | 6660-6669,7000 | no | EU | Hungary ATW Internet |
| dallas.tx.us.undernet.org | 104.149.232.242 | 6660-6669,7000 | yes | US | Psychz Networks |
| losangeles.ca.us.undernet.org | 23.228.66.219 | 6660-6669,7000 | no | US | LayerHost |
| miami.fl.us.undernet.org | 186.233.185.155 | 6660-6669,7000 | yes | US | latitude.sh |
| pipera.ro.eu.undernet.org | 185.198.56.60 | 6660-6669,7000 | yes | EU | HostSailor Ltd align="left" |
| seattle.wa.us.undernet.org | 172.83.156.122 | 6660-6669,7000 | no | US | Spartan Host Ltd align="left" |
| oslo.no.eu.undernet.org | 185.243.218.59 | 6660-6669,7000 | yes | EU | Gigahost |
| amsterdam.nl.eu.undernet.org | 45.88.202.250 | 6660-6669,7000 | yes | EU | Gigahost |
| ix1.undernet.org | 91.236.182.1 | 6660-6669,7000 | no | WorldWide | |
| ix2.undernet.org | 45.58.183.18 | 6660-6669,7000 | no | WorldWide | Sharktech Inc |
(Quelle: https://www.undernet.org/servers.php - Stand: 08.2025)