Main File Library: 27 directories
AdventureNet: 64 directories
AgoraNet: 7 directories
AmigaNet: 3 directories
CombatNet: 3 directories
CSCN: 4 directories
DoRENET: 5 directories
Familynet: 29 directories
Fidonet: 316 directories
FSXNET: 10 directories
GatorNet: 36 directories
JustaXnet: 9 directories
LinuxNet: 18 directories
Micronet: 3 directories
PascalNet: 25 directories
Rmininet: 2 directories
RetroNet: 2 directories
SciNet: 8 directories
SpookNet: 8 directories
SportNet: 6 directories
StarNet: 2 directories
SurvNet: 16 directories
SysopsTechNet: 19 directories
VKRadio: 4 directories
Whispnet: 8 directories
ZENet: 4 directories