| 14901 | CRRX | Canon City & Royal Gorge R.R. LLC | 7/2000-7/2005 (not listed) | | NAKINA |
| 14902 | CRRX | Cedar Rapids Refrigerator Line | 8/1920-7/1932 | | NAKINA |
| 14903 | CRRX | Canon City & Royal Gorge R.R. LLC | Jul-00 | | NRHS |
| 14904 | CRRX | *CEDAR RAPIDS REFRIGERATOR LINE | | | PWRC |
| 14905 | CRRX | +CAN~ON CITY & ROYAL GORGE RAILROAD, LLC | | | PWRC |
| 14906 | CRRX | Cañon City and Royal Gorge Railroad | | | RSRV |
| 14907 | CRRX | CANON CITY & ROYAL GORGE RAILROAD L | | | SCAC4 |
| 14908 | CRRX | Canon City & Royal Gorge R.R. LLC | | USA | TRAFFIC |
| 14909 | CRRY | CARRY TRANSIT INC | | | SCAC3 |
| 14910 | CRRY | CARRY TRANSIT | | | SCAC4 |
| 14911 | CRS | Comercial Aerea, S.A. de C.V. | Callsign: Comercial Aerea, | MEX | AVCODES |
| 14912 | CRS | Crescent Airways, Inc. | Callsign: Cresair, | USA | AVCODES |
| 14913 | CRS | Comercial Aerea | | | ICAO1 |
| 14914 | CRS | CRS- Continental Rail Services B.V. | | NL | VKM |
| 14915 | CRSA | CRUCIBLE STEEL OF AMERICA | | | PWRC |
| 14916 | CRSA | CRESSONA TRUCKING COMPANY | | | SCAC3 |
| 14917 | CRSA | COBIAN RAMIREZ, ARNOLDO | | | SCAC4 |
| 14918 | CRSA | Contec Rail Safety ApS | | DK | VKM |
| 14919 | CRSB | CROSBY LUMBER & SUPPLY INC | | | SCAC3 |
| 14920 | CRSD | CROSS STATE TRANSPORT INC | | | SCAC3 |
| 14921 | CRSE | CROUSE CARTAGE COMPANY | | | SCAC3 |
| 14922 | CRSE | CROUSE TRANSPORTATION SERVICES LLC | | | SCAC4 |
| 14923 | CRSF | CRYSTAL FLEET TRUCKING CORP | | | SCAC4 |
| 14924 | CRSG | CROSS TRANSPORTATION INC | | | SCAC3 |
| 14925 | CRSG | CRETE CARRIER CORPORATION (SHAFFER | | | SCAC4 |
| 14926 | CRSH | CROSS STATES TRUCKING LLC | | | SCAC4 |
| 14927 | CRSI | CHRISTY TRUCK LINES | | | SCAC3 |
| 14928 | CRSI | CHRISTY TRUCK LINES | | | SCAC4 |
| 14929 | CRSJ | CIRCLE S SALES | | | SCAC3 |
| 14930 | CRSJ | CROSS, JOSEPH | | | SCAC4 |
| 14931 | CRSL | CRESSLER TRUCKING, INC. | | | SCAC3 |
| 14932 | CRSL | CRESSLER TRUCKING INC | | | SCAC4 |
| 14933 | CRSM | CRESCENT MOVING & STORAGE | | | SCAC3 |
| 14934 | CRSM | CRST EXPEDITED INC (TEMPERATURE CON | | | SCAC4 |
| 14935 | CRSN | CRANSTON TRUCKING COMPANY (DIV OF C | | | SCAC3 |
| 14936 | CRSN | CRANSTON TRUCKING COMPANY (DIV OF C | | | SCAC4 |
| 14937 | CRSO | CRYSTAL OIL COMPANY | | | SCAC3 |
| 14938 | CRSO | CRYSTAL OIL COMPANY | | | SCAC4 |
| 14939 | CRSP | COORS TRANSPORTATION COMPANY | | | SCAC3 |
| 14940 | CRSQ | CAROL DELIVERY SERVICE INC | | | SCAC3 |
| 14941 | CRSQ | CERES GULF INC | | | SCAC4 |
| 14942 | CRSR | CROSLAND TRUCKING INC | | | SCAC3 |
| 14943 | CRSS | CROSS TRANSPORTATION SERVICES | | | SCAC3 |
| 14944 | CRSS | CROSSCHASM TECHNOLOGIES INC | | | SCAC4 |
| 14945 | CRST | CRYSTAL MOTOR EXPRESS, INC | | | SCAC3 |
| 14946 | CRST | CRYSTAL MOTOR EXPRESS, INC | | | SCAC4 |
| 14947 | CRSU | SEACO SRL | | BDS | BIC |
| 14948 | CRSU | CRONOS CONTAINERS LTD | | | SCAC4 |
| 14949 | CRSV | CRANE SERVICE COMPANY INC | | | SCAC3 |
| 14950 | CRSV | CROSSOVER TRANSPORTATION INC | | | SCAC4 |
| 14951 | CRSW | CARAM, SHABLE W | | | SCAC3 |
| 14952 | CRSX | Cost Rail Service | 7/2000-7/2005 (not listed) | | NAKINA |
| 14953 | CRSX | Cost Rail Service | Jul-00 | | NRHS |
| 14954 | CRSX | *CASS SCENIC RAILROAD STATE PARK | | | PWRC |
| 14955 | CRSX | +COST RAIL SERVICE | | | PWRC |
| 14956 | CRSX | Cost Rail Service | | | RSRV |
| 14957 | CRT | Caribintair, S.A. | Callsign: Carbintair, | RH | AVCODES |
| 14958 | CRT | Caribintair | | | ICAO1 |
| 14959 | CRT | CHICAGO RAPID TRANSIT CO. | | | PWRC |
| 14960 | CRT | Chongquing Rail Trainsit | | PRC | TRAFFIC |
| 14961 | CRTA | CARRETTA TRUCKING INC | | | SCAC3 |
| 14962 | CRTA | CLACKAMAS RIGGING & TRANSFER INC | | | SCAC4 |
| 14963 | CRTC | COLUMBIA RIVER TRUCK COMPANY, INC | | | SCAC3 |
| 14964 | CRTD | CARTER, P TRUCKING | | | SCAC3 |
| 14965 | CRTD | CARTER, P TRUCKING | | | SCAC4 |
| 14966 | CRTE | CARDENAS ROMERO, TERESA DE JESUS | | | SCAC4 |
| 14967 | CRTG | COLE ROBERT TRUCKING INC | | | SCAC3 |
| 14968 | CRTG | C & R TRUCKING | | | SCAC4 |
| 14969 | CRTH | CARRY RITE HAULERS INC | | | SCAC4 |
| 14970 | CRTI | CARTER, J J & SON MOVING & STORAGE | | | SCAC3 |
| 14971 | CRTJ | COCKRELL, RICHARD INC | | | SCAC4 |
| 14972 | CRTK | CURTICE, GLENN TRUCKING | | | SCAC3 |
| 14973 | CRTL | CARTER TRUCK LINES, INC | | | SCAC3 |
| 14974 | CRTL | CARTER TRUCK LINES INC | | | SCAC4 |
| 14975 | CRTM | CARTERS MOVING AND STORAGE INC | | | SCAC3 |
| 14976 | CRTO | CAMPBELL, ROBERT DALE | | | SCAC3 |
| 14977 | CRTP | CARNER TRUCKING SERVICE | | | SCAC3 |
| 14978 | CRTP | CR TRANSPORT | | | SCAC4 |
| 14979 | CRTQ | CRONBAUGH TRANSPORTS INC | | | SCAC3 |
| 14980 | CRTQ | CERNA, R TRUCKING LLC | | | SCAC4 |
| 14981 | CRTR | CARR TRUCKING INC | | | SCAC3 |
| 14982 | CRTR | C | | | SCAC4 |
| 14983 | CRTS | CURTIS INC | | | SCAC3 |
| 14984 | CRTS | CREATIVE TRANSPORTATION SERVICES IN | | | SCAC4 |
| 14985 | CRTSA | COMSA RAIL TRANSPORT, S.A. | | ES | VKM |
| 14986 | CRTT | CORNETT TRUCKING CO | | | SCAC3 |
| 14987 | CRTU | SEACO SRL | | BDS | BIC |
| 14988 | CRTU | CROATIA LINE | | | SCAC3 |
| 14989 | CRTU | CRONOS CONTAINERS LTD | | | SCAC4 |
| 14990 | CRTW | CAR TWO | | | SCAC4 |
| 14991 | CRTX | Continental Turpentine & Rosin Corp., Inc. | 7/1932-7/1954; eliminated 7/1957 | | NAKINA |
| 14992 | CRTX | Continental Turpentine & Rosin Corp. | 7/1930 | | NAKINA |
| 14993 | CRTX | Continental Turpentine & Rosin Corp., Inc. | 4/38-1/52 | | NRHS |
| 14994 | CRTX | *CONTINENTAL TURPENTINE & ROSIN CORP. | | | PWRC |
| 14995 | CRTX | *CLASSIC RAIL TRAVEL COMPANY | | | PWRC |
| 14996 | CRTX | CLASSIC RAIL TRAVEL COMPANY | | | SCAC4 |
| 14997 | CRTY | COURTNEY PAUL L | | | SCAC3 |
| 14998 | CRTY | COURTNEY PAUL L | | | SCAC4 |
| 14999 | CRTZ | NORFOLK SOUTHERN [CONSOLIDATED RAIL CORP.] | | | PWRC |
| 15000 | CRTZ | Conrail (Norfolk Southern) | | | RSRV |
