| 14501 | CRJS | CARR, JOHN V & SON INC | | | SCAC3 |
| 14502 | CRJT | CROXEN, JERRY R TRUCKING | | | SCAC3 |
| 14503 | CRJT | CARTER, JOE TRUCKING INC | | | SCAC4 |
| 14504 | CRJU | CHINA RAILWAY INTERNATIONAL MULTIMODAL TRANSPORT CO.LTD | | PRC | BIC |
| 14505 | CRJW | CLARKE ROAD TRANSPORT USA INC | | | SCAC4 |
| 14506 | CRK | Air Pacific Crake | Callsign: Air Crake, | RP | AVCODES |
| 14507 | CRK | CR Airways Limited | IATA: N8, Callsign: Bauhinia, IATA Prefix: 851, Name changed to Hong Kong Airlines Limited. Designator N8* reinstated by IATA | HK | AVCODES |
| 14508 | CRK | Hong Kong Airlines Limited | IATA: N8, Callsign: Bauhinia, IATA Prefix: 851, IATA designator changed to HX w.e.f. 27 May 2007. Name changed from CR Airways Limited. Designator N8* reinstated by IATA | HK | AVCODES |
| 14509 | CRK | Hong Kong Airlines Limited | IATA: HX, Callsign: Bauhinia, IATA Prefix: 851, IATA designator changed from N8* w.e.f. 27 May 2007. Name changed from CR Airways Limited. Designator N8* reinstated by IATA | HK | AVCODES |
| 14510 | CRK | Hong Kong Airlines | IATA: N8 | | ICAO1 |
| 14511 | CRKA | CARRS LIVESTOCK TRANSPORTATION INC | | | SCAC4 |
| 14512 | CRKB | CLARK BROTHERS TRANSPORTATION INC | | | SCAC3 |
| 14513 | CRKD | CROOKS WAREHOUSE OF KANSAS CITY INC | | | SCAC3 |
| 14514 | CRKF | CLARK FORWARDERS INC | | | SCAC3 |
| 14515 | CRKH | CROOKSHANKS, SAM CO | | | SCAC3 |
| 14516 | CRKI | CROOK & SONS | | | SCAC3 |
| 14517 | CRKJ | CORLE TRANSPORT LLC | | | SCAC4 |
| 14518 | CRKK | CREEK TRUCKING CO INC | | | SCAC3 |
| 14519 | CRKL | CRACKLE EXPRESS INC | | | SCAC3 |
| 14520 | CRKL | CLARK, J D LOGISTICS INC | | | SCAC4 |
| 14521 | CRKM | CRADDOCK MOVING & STORAGE CO | | | SCAC3 |
| 14522 | CRKM | CRADDOCK MOVING & STORAGE CO INC | | | SCAC4 |
| 14523 | CRKN | CLARK, KENNETH COMPANY INC | | | SCAC3 |
| 14524 | CRKN | CLARK, KENNETH COMPANY INC | | | SCAC4 |
| 14525 | CRKO | CRIKOS, F. J | | | SCAC3 |
| 14526 | CRKP | CORK TRANSPORTATION INC | | | SCAC3 |
| 14527 | CRKP | CENTRAL AROOSTOOK TRANSPORT | | | SCAC4 |
| 14528 | CRKQ | COLRICK TRUCKING CO INC | | | SCAC3 |
| 14529 | CRKQ | CLAREN LOGISTICS | | | SCAC4 |
| 14530 | CRKR | CRANE, KIRBY INC | | | SCAC3 |
| 14531 | CRKT | CAMPF, R K TRANSPORT | | | SCAC4 |
| 14532 | CRKU | CURT RICHTER SE | | D | BIC |
| 14533 | CRKU | CURT RICHTER GMBH | | | SCAC4 |
| 14534 | CRKV | CAREER TRANSPORTING INC | | | SCAC4 |
| 14535 | CRKW | CREEKWOOD CARRIERS | | | SCAC4 |
| 14536 | CRL | Corse Air International | IATA: SS, Callsign: Corsair, IATA Prefix: 923, IATA designator changed from CS. ICAO callsign changed from Charlie Sierra | F | AVCODES |
| 14537 | CRL | Corse Air International | IATA: CS, Callsign: Charlie Sierra, IATA designator changed to SS. ICAO callsign changed to Corseair | F | AVCODES |
| 14538 | CRL | Corsairfly | IATA: SS | | ICAO1 |
| 14539 | CRL | Chicago Rail Link | added 7/1989; 1/1994-7/2005; eliminated 4/2006 | | NAKINA |
| 14540 | CRL | Cudahy Car Lines (temporary) | 7/1935 | | NAKINA |
| 14541 | CRL | Chicago Rail Link | added 7/89; 1/94-7/2000 | | NRHS |
| 14542 | CRL | CHICAGO RAIL LINK | | | PWRC |
| 14543 | CRL | Chicago Rail Link | | | RSRV |
| 14544 | CRL | CRL Car Rail Logistics GmbH | | AT | VKM |
| 14545 | CRLA | CARLA INDUSTRIES LTD | | | SCAC4 |
| 14546 | CRLB | CONQUEST RACING LLC | | | SCAC4 |
| 14547 | CRLC | CRST LOGISTICS INC | | | SCAC4 |
| 14548 | CRLE | Michigan Air-Line Ry. Co. | added 4/2007 | | NAKINA |
| 14549 | CRLE | Coe Rail, Inc. | added 7/1985; eliminated 1/1990; added 7/1990; 1/1994-7/2005; eliminated 4/2007 | | NAKINA |
| 14550 | CRLE | Coe Rail, Inc. | eliminated 1/90; added 7/90; 1/94-7/2000 | | NRHS |
| 14551 | CRLE | MICHIGAN AIR-LINE RWY. CO. [COE RAIL, INC.] | | | PWRC |
| 14552 | CRLE | Coe Rail | | | RSRV |
| 14553 | CRLE | COE RAIL INC | | | SCAC3 |
| 14554 | CRLE | Coe Rail Inc. | | USA | TRAFFIC |
| 14555 | CRLF | CHOICE RELOCATION INC | | | SCAC3 |
| 14556 | CRLF | CHOICE RELOCATION INC | | | SCAC4 |
| 14557 | CRLG | COLORADO AIRLINES INC | | | SCAC3 |
| 14558 | CRLG | COUTURE LOGISTICS INC | | | SCAC4 |
| 14559 | CRLH | CAROLINA SOUTHERN, INC | | | SCAC3 |
| 14560 | CRLH | CAROLINA SOUTHERN INC | | | SCAC4 |
| 14561 | CRLI | CARL TRANSPORTATION | | | SCAC3 |
| 14562 | CRLI | CRALER INTERNATIONAL INC | | | SCAC4 |
| 14563 | CRLJ | CHARLETT TRUCKING SERVICE LTD | | | SCAC3 |
| 14564 | CRLK | CARMEL TRUCKING | | | SCAC3 |
| 14565 | CRLL | CAROLINA NATIONAL TRANSPORTATION IN | | | SCAC4 |
| 14566 | CRLM | CARROLL MOVING & STORAGE CO INC | | | SCAC3 |
| 14567 | CRLM | CARROLLS MOVING & STORAGE CO INC | | | SCAC4 |
| 14568 | CRLN | CROSBY LUMBER COMPANY INC | | | SCAC3 |
| 14569 | CRLN | CARROLL MILL TRANSPORT LLC | | | SCAC4 |
| 14570 | CRLO | CARROLL TRANSPORTATION | | | SCAC3 |
| 14571 | CRLP | CARE LINE INC | | | SCAC3 |
| 14572 | CRLQ | CARLESI TRUCKING CO | | | SCAC3 |
| 14573 | CRLR | CARRETTA LOAD TO RIDE | | | SCAC3 |
| 14574 | CRLS | CARROLLS TRANSFER INC | | | SCAC3 |
| 14575 | CRLS | CORRALES TRUCKING | | | SCAC4 |
| 14576 | CRLT | CARLI TRANSPORT, INC | | | SCAC3 |
| 14577 | CRLT | CONTOUR LOGISTICS | | | SCAC4 |
| 14578 | CRLU | SEACUBE CONTAINERS LLC | | USA | BIC |
| 14579 | CRLU | CARLISLE LEASING INTERNATIONAL | | | PWRC |
| 14580 | CRLU | Carlisle Leasing International | | | RSRV |
| 14581 | CRLU | CARLISLE LEASING INTERNATIONAL | | | SCAC3 |
| 14582 | CRLU | CARLISLE LEASING INTERNATIONAL | | | SCAC4 |
| 14583 | CRLV | CLEAR LINK SHIPPING | | | SCAC3 |
| 14584 | CRLX | Canadian Railserve Ltd. | 7/2000-7/2005 (not listed) | | NAKINA |
| 14585 | CRLX | Cudahy Car Lines | eliminated 10/1965 | | NAKINA |
| 14586 | CRLX | Cudahy Car Lines | 7/1937-1/1943 | | NAKINA |
| 14587 | CRLX | Cudahy Packing Co. | 1/1945-7/1965 | | NAKINA |
| 14588 | CRLX | The Cudahy Refrigerator Car Line (Cudahy Car Lines) (previously C.R.L.) | added 11/1934; 7/1935 | | NAKINA |
| 14589 | CRLX | The Cudahy Refrigerator Car Line (Cudahy Car Lines) | Apr-38 | | NRHS |
| 14590 | CRLX | Cudahy Packing Co. | 1/52-7/65 | | NRHS |
| 14591 | CRLX | Cudahy Car Lines | eliminated 10/65 | | NRHS |
| 14592 | CRLX | Canadian Railserve Ltd. | Jul-00 | | NRHS |
| 14593 | CRLX | *CUDAHY CAR LINES [CUDAHY PACKING; CUDAHY REFRIGERATOR CAR LINE] | | | PWRC |
| 14594 | CRLX | *CENTEX RAIL LINK, LTD. | | | PWRC |
| 14595 | CRLX | +CANADIAN RAILSERVE LIMITED | | | PWRC |
| 14596 | CRLX | Centex Rail Link (Canadian Railserve) | | | RSRV |
| 14597 | CRLX | CANADIAN RAILSERVE LTD | | | SCAC4 |
| 14598 | CRLX | Conrail Leasing | | USA | TRAFFIC |
| 14599 | CRLY | CROWLEY, MARTIN A, TRUCKING | | | SCAC3 |
| 14600 | CRM | Commander Mexicana, S.A. de C.V. | Callsign: Commandermex, | MEX | AVCODES |
