| 11401 | CNQF | CONTAINER SERVICES ONTERNATIONAL IN | | | SCAC3 |
| 11402 | CNQF | CANOTS ESQUIF INC | | | SCAC4 |
| 11403 | CNQG | CENTERGAS INC | | | SCAC3 |
| 11404 | CNQG | CENTRAL NATIONAL GOTTESMAN | | | SCAC4 |
| 11405 | CNQH | CANARCTIC SHIPPING COMPANY LIMITED | | | SCAC3 |
| 11406 | CNQI | CENTURIONS SOLUTIONS INC | | | SCAC4 |
| 11407 | CNQL | C & L TRANSPORTATION INC | | | SCAC3 |
| 11408 | CNQL | C & L TRANSPORTATION INC | | | SCAC4 |
| 11409 | CNQM | CONTINENTAL MOVING & STORAGE INC | | | SCAC3 |
| 11410 | CNQN | CONLON TRANSPORTATION | | | SCAC3 |
| 11411 | CNQO | CONNELL OIL INC | | | SCAC4 |
| 11412 | CNQP | COASTLINE TRANSPORTATION INC | | | SCAC3 |
| 11413 | CNQP | CONTAINER CARRIER INCORPORATED | | | SCAC4 |
| 11414 | CNQR | CRANOR TRUCK LINES INC | | | SCAC3 |
| 11415 | CNQT | CONTINENTAL TRANSPORT INC | | | SCAC3 |
| 11416 | CNQT | CONTINENTAL CARRIER TRUCKING | | | SCAC4 |
| 11417 | CNQV | CONRAD MOVING & STORAGE | | | SCAC3 |
| 11418 | CNQW | CONWAY SHIPPING COMPANY, LTD. | | | SCAC3 |
| 11419 | CNQW | CONWAY SHIPPING COMPANY, LTD. | | | SCAC4 |
| 11420 | CNR | Condor Aero Services, Inc. | Callsign: Conaero, | USA | AVCODES |
| 11421 | CNR | Condor Aero Services | | | ICAO1 |
| 11422 | CNR | COUNTRY ROADS TOURS INC | | | SCAC4 |
| 11423 | CNRA | CAMPA NICOLS, RAFAEL ALFONSO | | | SCAC4 |
| 11424 | CNRB | C & R TRUCKING | | | SCAC3 |
| 11425 | CNRC | CONRAD CONSULTING LTD | | | SCAC4 |
| 11426 | CNRD | CONRADS TRANSPORT LTD | | | SCAC3 |
| 11427 | CNRD | CONRADS TRANSPORT LTD | | | SCAC4 |
| 11428 | CNRE | CANADIAN NATIONAL RAILWAYS, EAST | | | SCAC3 |
| 11429 | CNRE | CONTROLES REYNOSA SA DE CV | | | SCAC4 |
| 11430 | CNRG | C & R TRANSFER CO | | | SCAC3 |
| 11431 | CNRG | CAN RIDGE INDUSTRIES LTD | | | SCAC4 |
| 11432 | CNRH | C & R TRANSPORT | | | SCAC3 |
| 11433 | CNRI | C & R WAREHOUSE INC | | | SCAC3 |
| 11434 | CNRI | CONNOR INDUSTRIES | | | SCAC4 |
| 11435 | CNRK | C & R TRUCKING INC | | | SCAC3 |
| 11436 | CNRK | CONROY TRUCKING INC | | | SCAC4 |
| 11437 | CNRO | C & R TRUCKING CO INC | | | SCAC3 |
| 11438 | CNRP | CENTERA TRANSPORT INC | | | SCAC4 |
| 11439 | CNRQ | CONROY TRUCKING INC | | | SCAC3 |
| 11440 | CNRR | California Northern R.R. | 7/2000-7/2005 | | NAKINA |
| 11441 | CNRR | California Northern R.R. | Jul-00 | | NRHS |
| 11442 | CNRR | CALIFORNIA NORTHERN RAILROAD | | | PWRC |
| 11443 | CNRR | California Northern Railroad | | | RSRV |
| 11444 | CNRR | C AND R TRANSFER CO | | | SCAC3 |
| 11445 | CNRS | CONTAINER SERVICES INC | | | SCAC3 |
| 11446 | CNRT | CRANE RENTAL COMPANY INC | | | SCAC4 |
| 11447 | CNRU | CANADIAN NATIONAL RWY | | | PWRC |
| 11448 | CNRU | Canadian National Railway | | | RSRV |
| 11449 | CNRU | CANADIAN NATIONAL RAILWAYS | | | SCAC3 |
| 11450 | CNRU | CANADIAN NATIONAL RAILWAY | | | SCAC4 |
| 11451 | CNRV | CENTRAL VALLEY COURIER SERVICE INC | | | SCAC3 |
| 11452 | CNRV | CRANE CARTAGE LLC | | | SCAC4 |
| 11453 | CNRW | CANADIAN NATIONAL RAILWAYS, WEST | | | SCAC3 |
| 11454 | CNRX | Canadian Northern Railway, LLC | 7/2005 (not listed) | | NAKINA |
| 11455 | CNRX | Conroe Creosoting Co. | 1/1950-1/1952; eliminated 4/1953 | | NAKINA |
| 11456 | CNRX | Conroe Creosoting Co. | Jan-52 | | NRHS |
| 11457 | CNRX | *CONROE CREOSOTING CO. | | | PWRC |
| 11458 | CNRX | *CANADIAN NATIONAL RWY | | | PWRC |
| 11459 | CNRX | +CANADIAN NORTHERN RAILWAY, LLC | | | PWRC |
| 11460 | CNRX | Canadian National Railway | | | RSRV |
| 11461 | CNRX | CANADIAN NORTHERN RAILWAY LLC | | | SCAC4 |
| 11462 | CNRZ | *CANADIAN NATIONAL RWY | | | PWRC |
| 11463 | CNRZ | *CONTINENTAL NITROGEN & RESOURCES CORP. | | | PWRC |
| 11464 | CNRZ | Canadian National Railway | | | RSRV |
| 11465 | CNRZ | CANADIAN NATIONAL RAILWAYS | | | SCAC4 |
| 11466 | CNS | Cobalt Air, LLC | Callsign: Chronos, | USA | AVCODES |
| 11467 | CNS | Centennial Flight Centre Ltd. d/b/a Centennial Airlines | IATA: FA, Callsign: Centennial, IATA designator FA voluntary surrendered | CDN | AVCODES |
| 11468 | CNS | Centennial Flight Centre | | | ICAO1 |
| 11469 | CNSA | CANUSA TRANSPORTATION LTD | | | SCAC4 |
| 11470 | CNSB | C & S BRAY INC | | | SCAC3 |
| 11471 | CNSB | CNS TRUCKING LLC | | | SCAC4 |
| 11472 | CNSC | CONSOCO TRANSPORT | | | SCAC3 |
| 11473 | CNSC | CONSENSUS SHIPPING CORPORATION | | | SCAC4 |
| 11474 | CNSD | COORDINATED DISTRIBUTION SYSTEMS IN | | | SCAC3 |
| 11475 | CNSD | CANADIAN ASSOCIATION OF MOLDMAKERS | | | SCAC4 |
| 11476 | CNSG | CALIFORNIA NATIONAL SYSTEMS INC | | | SCAC3 |
| 11477 | CNSG | C & S LOGISTICS INC | | | SCAC4 |
| 11478 | CNSH | CORNISH CHARLES E | | | SCAC3 |
| 11479 | CNSH | CANSHIP UGLAND LTD | | | SCAC4 |
| 11480 | CNSI | C & S TRUCKING | | | SCAC3 |
| 11481 | CNSJ | CONTAINER SHIPS ASHORE | | | SCAC3 |
| 11482 | CNSK | CENTRAL & SOUTHERN TRANSFER INC | | | SCAC3 |
| 11483 | CNSK | CHARLESTON STEEL & METAL CO INC | | | SCAC4 |
| 11484 | CNSL | CERTAIN SHIPPING LIMITED | | | SCAC3 |
| 11485 | CNSM | CHICAGO NORTH SHORE & MILWAUKEE RWY | | | PWRC |
| 11486 | CNSM | CONSOLIDATED AUTO TRANSPORT US LLC | | | SCAC4 |
| 11487 | CNSM | Chicago North Shore & Milwaukee | Real: CNS&M | USA | TRAFFIC |
| 11488 | CNSN | CARROLL & SON | | | SCAC3 |
| 11489 | CNSN | CO-OP NON STOCK TRANSPORT COMPANY | | | SCAC4 |
| 11490 | CNSO | CERUTTI & SONS TRANSPORTATION CO | | | SCAC3 |
| 11491 | CNSO | CONSTRUCT OIL COMPANY INC | | | SCAC4 |
| 11492 | CNSP | COLONIAL STORAGE COMPANY | | | SCAC3 |
| 11493 | CNSQ | C & S CARTAGE CO | | | SCAC3 |
| 11494 | CNSR | CONTAINER SERVICE CORPORATION | | | SCAC3 |
| 11495 | CNSR | CANADIAN AUTO STORES LIMITED | | | SCAC4 |
| 11496 | CNSS | CANADIAN NATIONAL STEAMSHIPS | | | PWRC |
| 11497 | CNSS | CNS EQUIPMENT INC | | | SCAC4 |
| 11498 | CNST | CARLTON & STUBING INC | | | SCAC3 |
| 11499 | CNST | C & S TRANSPORT INC | | | SCAC4 |
| 11500 | CNSU | SPINNAKER LEASING CORPORATION | | USA | BIC |
