| 13001 | CPDA | CORPORATE RELOCATION INC | | | SCAC4 |
| 13002 | CPDB | COMPLETE DISTRIBUTION SERVICES INC | | | SCAC3 |
| 13003 | CPDC | CHARLIES PRODUCE CO | | | SCAC3 |
| 13004 | CPDC | CONSUMERS PRODUCE COMPANY INC OF PI | | | SCAC4 |
| 13005 | CPDD | CONSUMER PRODUCTS DISTRIBUTION LTD | | | SCAC3 |
| 13006 | CPDE | CINTRONS PASADENA DELIVERY SERVICE | | | SCAC3 |
| 13007 | CPDG | COGIMEX (COMPANIA ANONIMA DE GERENC | | | SCAC3 |
| 13008 | CPDG | COBB, P A TRUCKING | | | SCAC4 |
| 13009 | CPDH | CHAPARRAL DELIVERY SERVICE OF MESQU | | | SCAC3 |
| 13010 | CPDH | CARPE DIEM TECHNOLOGIES INC | | | SCAC4 |
| 13011 | CPDI | COPELAND OIL COMPANY | | | SCAC4 |
| 13012 | CPDJ | COMPTON, D | | | SCAC3 |
| 13013 | CPDK | COPELAND TRUC-KING INC | | | SCAC3 |
| 13014 | CPDK | COPELAND TRUCKING INC | | | SCAC4 |
| 13015 | CPDL | CAPE DOUGLAS | | | SCAC3 |
| 13016 | CPDM | C A P TRANSPORTATION INC | | | SCAC3 |
| 13017 | CPDM | CAROLINA PROCESSING DE MEXICO S A D | | | SCAC4 |
| 13018 | CPDN | COMPANIA DE NAVEGACION INGENIOUS S | | | SCAC3 |
| 13019 | CPDN | CROWLEY PETROLEUM DISTRIBUTION INC | | | SCAC4 |
| 13020 | CPDO | CHAMPION DISTRIBUTION SERVICES | | | SCAC3 |
| 13021 | CPDO | CARL PRODUCT CORPORATION | | | SCAC4 |
| 13022 | CPDP | COPLEY, D & SON TRANSPORT LTD | | | SCAC3 |
| 13023 | CPDP | COPLEY, D & SON TRANSPORT LTD | | | SCAC4 |
| 13024 | CPDQ | COLUMBIA PIGGYBACK DRAYAGE INC | | | SCAC3 |
| 13025 | CPDQ | COPELAND PRODUCTS LLC | | | SCAC4 |
| 13026 | CPDR | Carolina Piedmont Division, South Carolina Central R.R. Co., Inc. | added 1/1991; eliminated 10/1991; 1/1994; added 10/1994; 7/2000; eliminated 4/2004; 7/2005 | | NAKINA |
| 13027 | CPDR | Carolina Piedmont Division, South Carolina Central R.R. Co., Inc. | added 1/91; eliminated 10/91; 1/94; added 10/94; 7/2000 | | NRHS |
| 13028 | CPDR | CAROLINA PIEDMONT DIV., SC CENTRAL RAILROAD CO., INC. | | | PWRC |
| 13029 | CPDR | Carolina Piedmont Railway | | | RSRV |
| 13030 | CPDR | CAROLINA PIEDMONT DIVISION SOUTH CA | | | SCAC3 |
| 13031 | CPDR | CAROLINA PIEDMONT DIVISION SOUTH CA | | | SCAC4 |
| 13032 | CPDR | Carolina Piedmont Division, South Carolina Central R.R. Co., Inc. | | USA | TRAFFIC |
| 13033 | CPDS | CAMPOS DELIVERY SERVICE | | | SCAC3 |
| 13034 | CPDS | CMS PRODUCTIONS | | | SCAC4 |
| 13035 | CPDT | CAROLINA-PACIFIC DISTRIBUTORS, INC | | | SCAC3 |
| 13036 | CPDT | CONSUMER PRODUCT SERVICES LLC | | | SCAC4 |
| 13037 | CPDU | IES DOWNSTREAM LLC | | USA | BIC |
| 13038 | CPDU | DELAWARE AND HUDSON RAILWAY COMPANY, INC. | | | PWRC |
| 13039 | CPDU | Delaware and Hudson Railway (Canadian Pacific) | | | RSRV |
| 13040 | CPDU | CP RAIL | | | SCAC3 |
| 13041 | CPDU | CHEVRON PRODUCTS | | | SCAC4 |
| 13042 | CPDV | CORPORATE DELIVERY INC | | | SCAC3 |
| 13043 | CPDW | CHOPSWILSON PACKAGE DELIVERY SERVIC | | | SCAC4 |
| 13044 | CPDX | Chevron U.S.A. Inc. | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 13045 | CPDX | National Car Co. | eliminated 7/1955 | | NAKINA |
| 13046 | CPDX | Fruit Growers Express Co. | 1/1950-7/1954 | | NAKINA |
| 13047 | CPDX | National Car Co. | 1/1945-4/1947 | | NAKINA |
| 13048 | CPDX | Fruit Growers Express Co. | Jan-52 | | NRHS |
| 13049 | CPDX | National Car Co. | eliminated 7/55 | | NRHS |
| 13050 | CPDX | Chevron U.S.A. Inc. | added 10/95; 7/2000 | | NRHS |
| 13051 | CPDX | *NATIONAL CAR CO. (FRUIT GROWERS EXPRESS CO.) | | | PWRC |
| 13052 | CPDX | +CHEVRON U.S.A. INCORPORATED | | | PWRC |
| 13053 | CPDX | Chevron USA | | | RSRV |
| 13054 | CPDY | CAPITAL DELIVERY SERVICE INC | | | SCAC3 |
| 13055 | CPDY | CLARKS POULTRY INC | | | SCAC4 |
| 13056 | CPDZ | DELAWARE AND HUDSON RAILWAY COMPANY, INC. | | | PWRC |
| 13057 | CPDZ | Delaware and Hudson Railway (Canadian Pacific) | | | RSRV |
| 13058 | CPE | Aerocomponentes Internacionales, S.A. de C.V. | Callsign: Componentesint, | MEX | AVCODES |
| 13059 | CPE | Copterline OU | Callsign: Copterline, | FIN | AVCODES |
| 13060 | CPE | CP RAIL (CANADIAN PACIFIC LTD) THUN | | | SCAC4 |
| 13061 | CPE | Chris Pedersen for TrainPlayer | | | TRAFFIC |
| 13062 | CPEA | CONSERVATIVE PETROLEUM | | | SCAC4 |
| 13063 | CPEB | C P EAST COAST TRUCKING INC | | | SCAC3 |
| 13064 | CPEC | COPELAND CARTAGE | | | SCAC3 |
| 13065 | CPEF | CAPE FEAR TRUCKING OF DALLAS INC | | | SCAC3 |
| 13066 | CPEF | CORRALES PEREZ, EFRAIN | | | SCAC4 |
| 13067 | CPEG | CARPENTER TRUCKING | | | SCAC3 |
| 13068 | CPEG | CARPENTER TRUCKING CO INC | | | SCAC4 |
| 13069 | CPEH | CAMPILLO, A ENTERPRISE INC | | | SCAC3 |
| 13070 | CPEH | CLINT SPEARMAN TRUCKING | | | SCAC4 |
| 13071 | CPEI | CAPITOL EXPRESS INC | | | SCAC3 |
| 13072 | CPEI | CAPITOL EXPRESS INC | | | SCAC4 |
| 13073 | CPEK | CAMPBELL, MIKEL | | | SCAC3 |
| 13074 | CPEL | CAMPBELL TRUCKING CO | | | SCAC3 |
| 13075 | CPEL | CAMPBELL TRUCKING COMPANY | | | SCAC4 |
| 13076 | CPEM | COMPLETE MOVING | | | SCAC3 |
| 13077 | CPEM | CAPEMA | | | SCAC4 |
| 13078 | CPEO | C P EXPRESS INC | | | SCAC3 |
| 13079 | CPEP | CP EXPRESS, (DIV OF CANADIAN PACIFI | | | SCAC3 |
| 13080 | CPEP | CASTILLO PORRAS, ERNESTO | | | SCAC4 |
| 13081 | CPEQ | CAMPER, DONALD L | | | SCAC3 |
| 13082 | CPEQ | CHAPRA ENTERPRISES S A | | | SCAC4 |
| 13083 | CPER | CLIPPER AMERICAN | | | SCAC3 |
| 13084 | CPER | CLIPPER AMERICAS INC | | | SCAC4 |
| 13085 | CPET | CARE PETROLEUM INC | | | SCAC4 |
| 13086 | CPEV | COOPERATIVE SERVICES INC | | | SCAC3 |
| 13087 | CPEW | CAPITAL EXPRESS INTL INC | | | SCAC4 |
| 13088 | CPEX | California Petroleum Exchange | 8/1920-7/1923 | | NAKINA |
| 13089 | CPEX | CALIFORNIA PETROLEUM EXCHANGE | | | PWRC |
| 13090 | CPEX | CANADIAN PACIFIC EXPRESS CO | | | SCAC3 |
| 13091 | CPEX | CANADIAN PACIFIC EXPRESS CO | | | SCAC4 |
| 13092 | CPEY | CONUS, PAUL EQUIPMENT CO | | | SCAC3 |
| 13093 | CPF | Airtechservice Ltd. | Callsign: Techservice, | UA | AVCODES |
| 13094 | CPF | U S Air Force Auxiliary, Civil Air Patrol | Callsign: Cap-Flight, | USA | AVCODES |
| 13095 | CPF | U S Air Force Auxiliary, Civil Air Patrol | Callsign: Cap-Flight, | USA | AVCODES |
| 13096 | CPF | ATS Private Company | | | ICAO1 |
| 13097 | CPF | Cotton Plant-Fargo Ry. Co. | 1/1975; eliminated 7/1977 | | NAKINA |
| 13098 | CPF | Cotton Plant-Fargo Ry. Co. | 1/75; eliminated 7/77 | | NRHS |
| 13099 | CPF | COTTON PLANT-FARGO RAILWAY CO. | | | PWRC |
| 13100 | CPFA | CLAXTON POULTRY FARMS | | | SCAC4 |
