| 1 | CR | OAG Worldwide | ICAO: ABC, Name changed to UBM Aviation - OAG. Non-airline Org. in airline industry | GB | AVCODES |
| 2 | CR | Miscellaneous Auxiliary Calegory | ICAO: XCR, Designator CR* recalled by IATA. Non-airline Org. in airline industry | USA | AVCODES |
| 3 | CR | Rhodesian United Air Carriers | Callsign: Aircar, | RNY | AVCODES |
| 4 | CR | Aerocaribbean S.A. | Callsign: Aerocaribbean, | C | AVCODES |
| 5 | CR | Norfolk Southern R.R. Co. (Norfolk Southern) | added 7/1999; 7/2000-7/2005 | | NAKINA |
| 6 | CR | Consolidated Rail Corp. | added 4/1976; 1/1980-1/1994; eliminated 7/1999 | | NAKINA |
| 7 | CR | Copper Range R.R. Co. | 8/1920-10/1966 | | NAKINA |
| 8 | CR | Copper Range R.R. Co. | 7/23-10/66 | | NRHS |
| 9 | CR | Consolidated Rail Corp. | added 4/76; 1/80-1/94; eliminated 7/99 | | NRHS |
| 10 | CR | Norfolk Southern R.R. Co. (Norfolk Southern) | added 7/99; 7/2000 | | NRHS |
| 11 | CR | Cargo Rail GmbH | Dillingen | D | privat-bahn.de |
| 12 | CR | NORFOLK SOUTHERN RWY. [CONRAIL, COPPER RANGE RR] | | | PWRC |
| 13 | CR | Conrail (Norfolk Southern) | | | RSRV |
| 14 | CR | CONSOLIDATED RAIL CORPORATION | | | SCAC4 |
| 15 | CR | Consolidated Rail Corporation (Conrail) | | USA | TRAFFIC |
| 16 | CR | Chiltern Railways | | UK | VKM |
| 17 | CR&C | Carlton & Coast R.R. | 4/1938 | | NAKINA |
| 18 | CR&C | Carlton & Coast R.R. | Apr-38 | | NRHS |
| 19 | CR&C | CARLTON & COAST RAILROAD | | | PWRC |
| 20 | CR&M | CHIPPEWA RIVER & MENOMONEE RWY | | | PWRC |
| 21 | CR&N | Carolina & Northwestern Ry. | 4/1938-10/1966 | | NAKINA |
| 22 | CR&N | Carolina & Northwestern Ry. | 4/38-10/66 | | NRHS |
| 23 | CR&N | CAROLINA & NORTHWESTERN RWY. | | | PWRC |
| 24 | CRA | Cronos Airlines | IATA: C8, Callsign: Cronos, Accounting code 498 recalled by IATA. | GQ | AVCODES |
| 25 | CRA | Solutions Air Charter, LLC | Callsign: Crossroads, | USA | AVCODES |
| 26 | CRA | CIMAS Emergency Air Rescue Service | Callsign: Cimas, | ZW | AVCODES |
| 27 | CRA | Cronos Airlines | IATA: C8, Callsign: Cronos, Accounting code 498 recalled by IATA. | GQ | AVCODES |
| 28 | CRA | Coronado Aerolineas | | | ICAO1 |
| 29 | CRA | Peter CRAMER GmbH & Co. KG | | DE | VKM |
| 30 | CRAA | CRAWFORD, R H | | | SCAC3 |
| 31 | CRAA | CRAWFORD, R H INC | | | SCAC4 |
| 32 | CRAB | CRABBS TRANSPORT, INC | | | SCAC3 |
| 33 | CRAB | CRUZ RAMOS PERALES, FLORENCIO | | | SCAC4 |
| 34 | CRAD | CONRAD TRUCKING INC | | | SCAC3 |
| 35 | CRAD | CAMIONES RAPIDOS DEL NORTE SA DE CV | | | SCAC4 |
| 36 | CRAF | CRAFT REFRIGERATED SERVICE, INC | | | SCAC3 |
| 37 | CRAG | CRAIG TRANSPORTATION | | | SCAC3 |
| 38 | CRAG | CARRILLO, AGUSTIN | | | SCAC4 |
| 39 | CRAH | CRAVEN, HERBERT E & SON | | | SCAC3 |
| 40 | CRAH | CRAFTSMAN TABLES | | | SCAC4 |
| 41 | CRAI | CRA INC | | | SCAC3 |
| 42 | CRAIL | CONTINENTAL RAIL | | ES | VKM |
| 43 | CRAJ | CRAWFORD MOBLE HOMES | | | SCAC3 |
| 44 | CRAK | CRACE CONTRACTING CO | | | SCAC3 |
| 45 | CRAK | CRAFTWOOD | | | SCAC4 |
| 46 | CRAL | COLLETTE, R A OIL CO | | | SCAC4 |
| 47 | CRAM | CRAMPHIN, EUGENE | | | SCAC3 |
| 48 | CRAN | CRAIN, LESTER | | | SCAC3 |
| 49 | CRAN | CRANTON, GORDON | | | SCAC4 |
| 50 | CRAO | CORONA TRUCKING INC | | | SCAC3 |
| 51 | CRAO | CRUCES AMERICA SA DE CV | | | SCAC4 |
| 52 | CRAP | COLUMBIA RIVER TRANSPORTATION INCOR | | | SCAC4 |
| 53 | CRAQ | CARAS TRUCKING CO INC | | | SCAC3 |
| 54 | CRAQ | C RAE TRANSPORT | | | SCAC4 |
| 55 | CRAR | CROSSROADS COURIER INC | | | SCAC4 |
| 56 | CRAS | CROSS K INC | | | SCAC4 |
| 57 | CRAU | CARBOX CO-DOS DE COSTA RICA | | CR | BIC |
| 58 | CRAW | CRAWFORD TRUCKING INC | | | SCAC4 |
| 59 | CRAX | Crystal Hopper Associates | added 7/1983; eliminated 7/1986 | | NAKINA |
| 60 | CRAX | Crystal Hopper Associates | eliminated 7/86 | | NRHS |
| 61 | CRAX | CRYSTAL HOPPER ASSOCIATES | | | PWRC |
| 62 | CRAX | Crystal Hopper Associates | | | RSRV |
| 63 | CRAY | CLAY-RAY TRUCK LINE | | | SCAC3 |
| 64 | CRAY | CRAIG, STEPHEN TRANSPORT | | | SCAC4 |
| 65 | CRAZ | CORNUCOPIA TRANSPORTATION, INC. | | | PWRC |
| 66 | CRAZ | Cornucopia Transportation | | | RSRV |
| 67 | CRAZ | CORNUCOPIA TRANSPORTATION, INC. | | | SCAC4 |
| 68 | CRB | Caribbean Air Tours & Services Charters, S.A. de C.V. | Callsign: Catsa, | HN | AVCODES |
| 69 | CRB | Air Atlanta, Inc. | Callsign: Airlan, | USA | AVCODES |
| 70 | CRB | CAMP ROBERTS BASE | | | PWRC |
| 71 | CRBA | CARBRA TRANS INC | | | SCAC3 |
| 72 | CRBA | CARBRA TRANS INC | | | SCAC4 |
| 73 | CRBB | CORTNER, BILLY B INC | | | SCAC3 |
| 74 | CRBB | CRABBE, H J & SONS LTD | | | SCAC4 |
| 75 | CRBCP | CARBONIFERA SA - PUNCT DE LUCRU CARBONIFERA CÂMPULUNG | | RO | VKM |
| 76 | CRBD | C R B DELIVERY SYSTEMS INC | | | SCAC3 |
| 77 | CRBD | CLARK RANCHES INC | | | SCAC4 |
| 78 | CRBE | CARIBE SHIPPING INC | | | SCAC3 |
| 79 | CRBE | CARRIER & BEGIN INC | | | SCAC4 |
| 80 | CRBG | CARIBMONT SHIPPING INC. | | | SCAC3 |
| 81 | CRBH | CARTER, ROBHALEE TRUCKING COMPANY | | | SCAC3 |
| 82 | CRBI | CORNBELT TRANSPORT SERVICE INC | | | SCAC3 |
| 83 | CRBI | CR BARD INC | | | SCAC4 |
| 84 | CRBL | CARA BLOODSTOCK | | | SCAC4 |
| 85 | CRBM | C R B MOTOR LINES INC | | | SCAC3 |
| 86 | CRBM | COLUMBIA RIVER BROKERS INCORPORATED | | | SCAC4 |
| 87 | CRBN | CARIBBEAN K LINE | | | SCAC3 |
| 88 | CRBO | CARBO, JOSEPH & SONS INC | | | SCAC3 |
| 89 | CRBP | CRAWFORD, BRADY P | | | SCAC3 |
| 90 | CRBP | CRB TRANSPORT INC | | | SCAC4 |
| 91 | CRBQ | C R B ENTERPRISES INC | | | SCAC3 |
| 92 | CRBQ | CROSSROADS TRANSPORTATION INC | | | SCAC4 |
| 93 | CRBR | CREECH BROTHERS TRUCK LINES, INC | | | SCAC3 |
| 94 | CRBS | CRIST, OWEN AUTO BODY SERVICE INC | | | SCAC3 |
| 95 | CRBT | CARIBBEAN TRAILER EXPRESS | | | PWRC |
| 96 | CRBU | CHINA RAILWAY TIELONG CONTAINER LOGISTIC CO LTD DALIAN LOGISTIC BRANCH | | PRC | BIC |
| 97 | CRBV | CROSS BAR RANCH | | | SCAC4 |
| 98 | CRBX | OmniSource Corp. | added 7/2006 | | NAKINA |
| 99 | CRBX | Continental Refining Corp. | 8/1920 | | NAKINA |
| 100 | CRBX | *CONTINENTAL REFINING CORP. | | | PWRC |
