| 1 | CNU | Air Consul | Callsign: Air Consul, | E | AVCODES |
| 2 | CNU | Air Consul | | | ICAO1 |
| 3 | CNU | COMPANIA NATIONALA A URANIULUI S.A. | | RO | VKM |
| 4 | CNUA | CONNAMERICAN INC | | | SCAC3 |
| 5 | CNUB | CONSTITUTION COACH INC | | | SCAC3 |
| 6 | CNUC | CONNECTICUT COURIER INC | | | SCAC3 |
| 7 | CNUC | CARLSON TRUCKING | | | SCAC4 |
| 8 | CNUD | CHESTNUT RIDGE TRANSIT INC | | | SCAC3 |
| 9 | CNUE | CONSOLIDATED FUELS OF NC | | | SCAC3 |
| 10 | CNUE | CONTINENTAL TIRE | | | SCAC4 |
| 11 | CNUF | CANTU, FERNANDO | | | SCAC4 |
| 12 | CNUG | CARLTON TRUCKING | | | SCAC3 |
| 13 | CNUG | CONACHER CUSTOM GRANITE INC | | | SCAC4 |
| 14 | CNUH | CHESTNUT HILL LIMOUSINE & COACH CO | | | SCAC3 |
| 15 | CNUI | CONSOLIDATIONS UNLIMITED INC | | | SCAC3 |
| 16 | CNUI | CONSOLCARGO USA INC | | | SCAC4 |
| 17 | CNUK | CLINTON TRUCKING | | | SCAC3 |
| 18 | CNUL | CENTURION TRANSPORT LLC | | | SCAC4 |
| 19 | CNUM | CONSUMERS MOVING CO INC | | | SCAC3 |
| 20 | CNUN | CENTURION NVOCC INC | | | SCAC3 |
| 21 | CNUP | COLIN DALE CO. S A | | | SCAC3 |
| 22 | CNUQ | COLTON AUTO INC | | | SCAC4 |
| 23 | CNUR | C & NC R.R. Corp. | added 7/1998; 7/2000-7/2005 | | NAKINA |
| 24 | CNUR | C & NC R.R. Corp. | added 7/98; 7/2000 | | NRHS |
| 25 | CNUR | C & NC RAILROAD CORPORATION | | | PWRC |
| 26 | CNUR | C&NC Railroad | | | RSRV |
| 27 | CNUR | C & NC RAILROAD CORPORATION | | | SCAC4 |
| 28 | CNUR | C&NC Railroad | | USA | TRAFFIC |
| 29 | CNUS | CHEM-NUCLEAR SYSTEMS INC | | | SCAC3 |
| 30 | CNUT | CONUS TRANSPORTATION | | | SCAC3 |
| 31 | CNUT | CONUS TRANSPORTATION INC | | | SCAC4 |
| 32 | CNUV | CENTURY VAN LINES INC | | | SCAC3 |
| 33 | CNUV | CENTURY VAN LINES INC | | | SCAC4 |
| 34 | CNUY | CENTURY TRANSPORTAITON CONSULTANT S | | | SCAC3 |
