Cactus Intertie System
Rabbit Radio Network
DX Packet Cluster  
GACW Club
American Radio Relay League
Metropolitan Amateur Repeater System  
Southern California Contest Club
The Radio Amateur Satellite Corporation
Southern California DX Club  
RSGB  
SOWP CW  
QCWA  
FISTS CW  
10-10 Club  
 
Northern Greece Contest Team  
Croatian Telegraphy Club  
Tuscon Amateur Packet Radio