Cincinnati/Northern Kentucky International Airport (CVG)
From The RadioReference Wiki
Unit Numbering
301 - Police/Fire/Airport Dispatch
901 - Fire Headquarters
100's - Airport Administration
200's - Building Maintenance
300's - Airport Police
400's - Airfield Maintenance
600's - Ramp Escort
700's - Electricians/Facility
800's - Housekeeping
900's - Fire/EMS
Police 10 Codes & Signals
10 Codes:
10-4 - Message Received
10-6 - Busy
10-8 - In Service
10-30 - Check DL Status
10-41 - On Duty
10-42 - Off Duty
10-71 - Disabled Vehicle
Signals:
Signal 4 - Police Department (On Station)