Network Operations Center 
National Operations Center 
Not Otherwise Classified 
Not Otherwise Coded 
Notation of Content 
Network Operating Center 
Norco Products 
National Occupational Classification 
Naval Operations Center 
Network Operation Center 
Naval Oceanographic Command 
Network Operating Centre 
Network Operational Center 
Night 
nonoperational-capable 
Notice of Commencement 
Notification of Compliance 
Nursing Outcomes Classification 
IATA code for Knock International Airp… 
Nantahala Outdoor Center 
National Obedience Champion 
National Occupation Classification 
National Occupational Codes 
National Oceanography Centre 
National Operational Center 
National Operational Command 
National Optometric Conference 
National Organizing Committee 
Nature of Connection 
NAVAL OCEANOGRAPHY COMMAND