| 1 | CNA | Centennial Airlines, S.A. | IATA: BE, Callsign: Cannon, Ceased operations in 1996. Founded in 1991 | E | AVCODES |
| 2 | CNA | Centavia | IATA: 7N, Suspended operations on 26 October 2006. | SR | AVCODES |
| 3 | CNA | Canavia Líneas Aéreas, SLU | Callsign: Canavia, Founded in July 2009. | E | AVCODES |
| 4 | CNA | Centavia | IATA: 7N | | ICAO1 |
| 5 | CNA | Canadian National Rys. | 1/1975-7/2005 | | NAKINA |
| 6 | CNA | Canadian National Rys. | 1/75-7/2000 | | NRHS |
| 7 | CNA | CANADIAN NATIONAL RWY | | | PWRC |
| 8 | CNA | Canadian National Railway | | | RSRV |
| 9 | CNAA | CANATA, ROBERT TRUCKING | | | SCAC3 |
| 10 | CNAC | CINCINNATI AIR CARGO INC | | | SCAC3 |
| 11 | CNAD | CANADIAN TRUNK LINE | | | SCAC3 |
| 12 | CNAD | CAMIONNAGE ADM INC | | | SCAC4 |
| 13 | CNAE | CANAAN ENTERPRISES | | | SCAC3 |
| 14 | CNAF | CONTRACTORS TRANSPORT INC | | | SCAC4 |
| 15 | CNAG | CONTINENTAL NORTH ATLANTIC WESTBOUN | | | SCAC3 |
| 16 | CNAG | CNA LOGISTICS LTD | | | SCAC4 |
| 17 | CNAH | CON AFFAIR LTD, THE | | | SCAC3 |
| 18 | CNAH | CNA FREIGHT LLC | | | SCAC4 |
| 19 | CNAI | C&A TRUCKING | | | SCAC3 |
| 20 | CNAI | C & A TRUCKING | | | SCAC4 |
| 21 | CNAJ | CONTINENTAL ARMORED TRANSPORT INC | | | SCAC3 |
| 22 | CNAJ | CENTRAL STEEL BUILDING & CONSTRUCTI | | | SCAC4 |
| 23 | CNAK | C & A TRUCKING INC | | | SCAC3 |
| 24 | CNAK | C N A TRUCKING INC | | | SCAC4 |
| 25 | CNAL | CNAN LINES | | | SCAC4 |
| 26 | CNAM | CIRCLE NORTH AMERICAN MOVING & STOR | | | SCAC3 |
| 27 | CNAM | CAN AM RV | | | SCAC4 |
| 28 | CNAN | CONAN TRANSPORT | | | SCAC4 |
| 29 | CNAO | CASEY-NORTH AMERICAN MOVING & STORA | | | SCAC3 |
| 30 | CNAP | CAN AM RAPID COURIER INC | | | SCAC3 |
| 31 | CNAP | COLIN, AUDELIO RAFAEL | | | SCAC4 |
| 32 | CNAQ | CANNONBALL EXPRESS INC | | | SCAC3 |
| 33 | CNAQ | CANNONBALL EXPRESS TRANSPORTATION C | | | SCAC4 |
| 34 | CNAR | CRANE & RUSSAK CO INC | | | SCAC3 |
| 35 | CNAR | CRANE & RUSSAK CO INC | | | SCAC4 |
| 36 | CNAS | CONDOR AIR-SEA TRANSPORT | | | SCAC3 |
| 37 | CNAT | CANADIAN NATIONAL AQUATRAIN | | | PWRC |
| 38 | CNAT | CN AQUATRAIN | | | SCAC4 |
| 39 | CNAU | TECHNIC-FRANCE | | F | BIC |
| 40 | CNAU | TECHNIC-FRANCE | | | SCAC4 |
| 41 | CNAV | COLUMBIA NORTH AMERICAN VAN & STORA | | | SCAC3 |
| 42 | CNAV | COLUMBIA NORTH AMERICAN VAN & STORA | | | SCAC4 |
| 43 | CNAW | CENTRAL TRANSPORTATION SERVICES INC | | | SCAC3 |
| 44 | CNAW | CENTRAL TRANSPORTATION SERVICES INC | | | SCAC4 |
| 45 | CNAY | C & A LEASING INC | | | SCAC3 |
| 46 | CNAZ | CANADIAN NATIONAL RWY [GRAND TRUNK WESTERN RAILROAD INC.] | | | PWRC |
| 47 | CNAZ | Canadian National Railway | | | RSRV |
| 48 | CNAZ | GRAND TRUNK WESTERN RAILROAD | | | SCAC4 |
