| 1 | CNB | Air Columbus | IATA: BO, Callsign: Air Columbus, Ceased operations | P | AVCODES |
| 2 | CNB | Cityline Hungary Kft. | IATA: ZM, Callsign: Cityhun, Ceased operation during 2015. Designator ZM* recalled by IATA. | H | AVCODES |
| 3 | CNB | Cityline Hungary | | | ICAO1 |
| 4 | CNB | | | NL | TRAFFIC |
| 5 | CNBA | CBASE | | | SCAC4 |
| 6 | CNBB | CON-BROOK TRANSPORTATION, INC | | | SCAC3 |
| 7 | CNBC | C & B CONTRACT CARRIERS INC | | | SCAC3 |
| 8 | CNBD | C & B TRANSPORTATION INC | | | SCAC3 |
| 9 | CNBE | COLLINS, BILL OIL CO INC | | | SCAC4 |
| 10 | CNBH | CAREY/NOB HILL LIMOUSINE AND TORUS | | | SCAC3 |
| 11 | CNBH | CN TRANSPORT LIMITED | | | SCAC4 |
| 12 | CNBI | CONRAD & BISCHOFF INC | | | SCAC3 |
| 13 | CNBJ | C & B TOURS | | | SCAC3 |
| 14 | CNBJ | CARTER TRUCKING | | | SCAC4 |
| 15 | CNBK | C & B TRUCKING | | | SCAC3 |
| 16 | CNBL | CANNONBALL TRUCKING INC | | | SCAC3 |
| 17 | CNBL | CANNONBALL TRUCKING INC | | | SCAC4 |
| 18 | CNBM | C & B TRANSFER & STORAGE CO | | | SCAC3 |
| 19 | CNBM | CAIN & BULTMAN INC | | | SCAC4 |
| 20 | CNBN | CONTINENTAL BROKERAGE INC | | | SCAC3 |
| 21 | CNBN | CALDRAYAGE TRANSPORTATION INC | | | SCAC4 |
| 22 | CNBO | CANADAS BEST CARRIERS INC | | | SCAC3 |
| 23 | CNBO | CASTILLON BROS COMPANY | | | SCAC4 |
| 24 | CNBP | C & B TRANSPORT | | | SCAC3 |
| 25 | CNBP | CARTER TRANSPORTATION INC | | | SCAC4 |
| 26 | CNBQ | C & B TRUCKING INC | | | SCAC3 |
| 27 | CNBQ | CONSORCIO DE SERVICIOS INTERNACIONA | | | SCAC4 |
| 28 | CNBR | CARIBBEAN NEW BRUNSWICK | | | SCAC3 |
| 29 | CNBS | CANOGA BUILDERS SUPPLIES | | | SCAC3 |
| 30 | CNBV | COLLINS BUS SERVICE INC | | | SCAC3 |
| 31 | CNBV | COLLINS BUS SERVICE INC | | | SCAC4 |
| 32 | CNBW | CANTONS BESTWAY INC | | | SCAC3 |
| 33 | CNBY | CANTERBURY TRAVEL | | | SCAC3 |
