Local : 5 sub-boards
AdventureNet : 50 sub-boards
Agoranet : 8 sub-boards
AmigaNet : 20 sub-boards
CSCN : 34 sub-boards
DevNet : 26 sub-boards
DoRENET : 15 sub-boards
DOVE-Net : 19 sub-boards
Fidonet : 469 sub-boards
FSXNET : 25 sub-boards
GameNet : 30 sub-boards
GatorNet : 44 sub-boards
HobbyNet : 29 sub-boards
ILink : 81 sub-boards
JustaXnet : 36 sub-boards
MetroNet : 8 sub-boards
Micronet : 11 sub-boards
MusicalNet : 28 sub-boards
PiNet : 4 sub-boards
RetroNet : 21 sub-boards
SciNet (defunct) : 15 sub-boards
SpookNet : 30 sub-boards
SportsNet : 16 sub-boards
SurvNet : 7 sub-boards
VKRadio : 8 sub-boards
ZENet : 18 sub-boards