crenlo 
Climate Reference Network 
Connection Rejected Notification 
Contract Revision Number 
Certified Radiologic Nurse 
Computer Reseller News 
Consolidation Reference Number 
Cosmic Ray Nuclei 
Course Reference Number 
Crane 
Call Redirection Notification 
Call Reference Number 
Call Request with Number 
Canadian Road Network 
Cancer Research Network 
Carolina and Northwestern Railway 
Cellular Radio Network 
Center for Responsible Nanotechnology 
Centre de Recherche Nucléaire 
Certified Registered Nurse 
Chip Resistor Networks 
Clinical Research Network 
CMWI Ring Notification 
Combat Radio Net 
Common Random Numbers 
Community Recycling Network 
complement-requiring neutralizing 
Conflict Resolution Network 
Continuous Random Network 
Cornell Corrections, Inc.