These are our servers.

Server name Abbreviation Variant name Status Administrator Issues/notes
nethack.alt.org NAO vanilla   paxed  
sporkhack.com SHC sporkhack   lorimer  
un.nethack.nu EUN unnethack   octe  
grunthack.org GHO grunthack   Grunt  
nethack4.org NH4 nethack4   ais523  
acehack.de ADE acehack   kerio  
acehack.de NDE vanilla   kerio  
acehack.de N13 oldhack   kerio  
dnethack.ilbelkyr.de DNH dnethack   bcode