| 1 | CPT | Corporate Air | Callsign: Air Spur, | USA | AVCODES |
| 2 | CPT | Corporate Air | | | ICAO1 |
| 3 | CPT | Canadian Pacific Ry. Co. | added 1/1997; 7/2000-7/2005 | | NAKINA |
| 4 | CPT | CP Rail System | eliminated 1/1997 | | NAKINA |
| 5 | CPT | CP Rail | added 7/1988; 1/1994 | | NAKINA |
| 6 | CPT | CP Rail | added 7/88; 1/94 | | NRHS |
| 7 | CPT | CP Rail System | eliminated 1/97 | | NRHS |
| 8 | CPT | Canadian Pacific Ry. Co. | added 1/97; 7/2000 | | NRHS |
| 9 | CPT | CP RAIL [CANADIAN PACIFIC RWY.] | | | PWRC |
| 10 | CPT | Canadian Pacific Railway End Of Train Devices | | | RSRV |
| 11 | CPT | Conpet SA Ploiesti | | RO | VKM |
| 12 | CPTB | CAPITOL TRANSPORTATION | | | SCAC4 |
| 13 | CPTC | Chicago Produce Terminal | 1/1975; eliminated 10/1978 | | NAKINA |
| 14 | CPTC | Chicago Produce Terminal | 1/75; eliminated 10/78 | | NRHS |
| 15 | CPTC | CHICAGO PRODUCE TERMINAL | | | PWRC |
| 16 | CPTC | CAMP TRANSPORTATION INC | | | SCAC3 |
| 17 | CPTC | Canadian Pacific Transport Company | | CDN | TRAFFIC |
| 18 | CPTD | CHIP TRUCKING INC | | | SCAC3 |
| 19 | CPTD | CHERRY POINT PRODUCTS INC | | | SCAC4 |
| 20 | CPTG | COMPASS MOVING & STORAGE | | | SCAC4 |
| 21 | CPTH | CAPITAL CITY TRUCKING INC | | | SCAC3 |
| 22 | CPTH | CHIPTIME RESULTS INC | | | SCAC4 |
| 23 | CPTI | CAPITAL TRANSFER & STORAGE | | | SCAC3 |
| 24 | CPTI | CAPITAL TRANSFER & STORAGE | | | SCAC4 |
| 25 | CPTJ | CROSS POINT TRANSPORTATION INC | | | SCAC4 |
| 26 | CPTK | CAPPELLO TRUCKING INC | | | SCAC3 |
| 27 | CPTK | CLIFFORD PRODUCE TRUCKING INC | | | SCAC4 |
| 28 | CPTM | COPTER MOVING & STORAGE | | | SCAC3 |
| 29 | CPTM | COMPLETE TRANSPORT SYSTEMS LLC | | | SCAC4 |
| 30 | CPTM | Companhia Paulista de Trens Metropolitanos | City: São Paulo | BR | TRAFFIC |
| 31 | CPTN | CARPENTER, TERRY L TRUCKING INC | | | SCAC4 |
| 32 | CPTO | CONSOLIDATED TRANSPORTATION CO | | | SCAC3 |
| 33 | CPTP | CADILLAC PRODUCTS TRUCKING CO | | | SCAC3 |
| 34 | CPTQ | CENTRAL PLAINS TRUCKING CORP | | | SCAC3 |
| 35 | CPTQ | CPT INC | | | SCAC4 |
| 36 | CPTR | CAPITAL TRANSPORT LTD | | | SCAC3 |
| 37 | CPTR | COASTAL PETROLEUM TRANSPORT LLC | | | SCAC4 |
| 38 | CPTRO | Captrain Romania | | RO | TRAFFIC |
| 39 | CPTRO | CAPTRAIN ROMANIA SRL | | RO | VKM |
| 40 | CPTS | CURATOLA, PETER TRUCKING INC | | | SCAC3 |
| 41 | CPTS | CONSUMERS PETROLEUM & TRANSPORT SVC | | | SCAC4 |
| 42 | CPTT | CAPITOL TRANSPORT COMPANY INC | | | SCAC3 |
| 43 | CPTT | CAPITAL CORP | | | SCAC4 |
| 44 | CPTU | TK SRT | | RUS | BIC |
| 45 | CPTU | C T M COMPANHIA PROTUGUESA DE TRANS | | | SCAC3 |
| 46 | CPTU | CAPETAINER LEASING (PTY) LTD | | | SCAC4 |
| 47 | CPTV | CUSTOM PRODUCE TRANSPORTATION LLC | | | SCAC4 |
| 48 | CPTW | C P TRANSPORT | | | SCAC3 |
| 49 | CPTW | COOPER T SMITH | | | SCAC4 |
| 50 | CPTY | CAMPBELL TRUCKING | | | SCAC3 |
| 51 | CPTY | CAPISTRAN TREVINO, RODOLFO | | | SCAC4 |
| 52 | CPTZ | COMMODORE POINT TERMINAL | | | PWRC |
