| 1 | CPR | Corporate Air, Inc. | Callsign: Corpair, | USA | AVCODES |
| 2 | CPR | Corporate Air | | | ICAO1 |
| 3 | CPR | Canadian Pacific Railway | Real: CP | CDN | TRAFFIC |
| 4 | CPRB | COPPERHEAD TRANSPORT LTD | | | SCAC4 |
| 5 | CPRC | COOPER CARTAGE COMPANY | | | SCAC3 |
| 6 | CPRC | CROWLEY PUERTO RICO SERVICES INC | | | SCAC4 |
| 7 | CPRD | CARLS PRODUCE | | | SCAC3 |
| 8 | CPRF | CAROLINA-PUERTO RICO INC | | | SCAC3 |
| 9 | CPRG | CAPITAL REFRIGERATED TRANSPORT INC | | | SCAC4 |
| 10 | CPRH | CAPITAL PAPER RECYCLING INC | | | SCAC4 |
| 11 | CPRI | CAMPORA TRANSPORTATION INC | | | SCAC3 |
| 12 | CPRJ | CARPENTER, ROBERT LEE AND MARY E | | | SCAC3 |
| 13 | CPRJ | CAMOU PALOMARES, RAFAEL ALBERTO | | | SCAC4 |
| 14 | CPRK | CAPROCK TRUCKING INC | | | SCAC3 |
| 15 | CPRK | CAPROCK TRANSPORT INC | | | SCAC4 |
| 16 | CPRL | COOPER, L D TRUCKING & CONTRACTING, | | | SCAC3 |
| 17 | CPRL | COOPER, L D TRUCKING & CONTRACTING, | | | SCAC4 |
| 18 | CPRM | CHAPARRAL TRUCKING COMPANY INC | | | SCAC3 |
| 19 | CPRM | CONCRETE PRE-MIX INC | | | SCAC4 |
| 20 | CPRN | C P R INC | | | SCAC3 |
| 21 | CPRN | CAPRON TRUCKING INC | | | SCAC4 |
| 22 | CPRO | CONSOLIDATED DELIVERIES INC | | | SCAC3 |
| 23 | CPRP | CAMPER, PETE TRUCKING | | | SCAC3 |
| 24 | CPRQ | COOPER TRANSFER CO | | | SCAC3 |
| 25 | CPRR | COOPER SERVICES TRANSPORTATION INC | | | SCAC3 |
| 26 | CPRR | CAPRICE CARRIERS INC | | | SCAC4 |
| 27 | CPRR | Central Pacific Railroad | | USA | TRAFFIC |
| 28 | CPRS | Canadian Pacific Ry. | 7/2000-7/2005 | | NAKINA |
| 29 | CPRS | Canadian Pacific Ry. | Jul-00 | | NRHS |
| 30 | CPRS | CANADIAN PACIFIC RAILWAY (CP RAIL SYSTEM/CP TARIFF INC.) | | | PWRC |
| 31 | CPRS | Canadian Pacific Railway | | | RSRV |
| 32 | CPRS | CANADIAN PACIFIC RAILWAY | | | SCAC3 |
| 33 | CPRS | CANADIAN PACIFIC RAILWAY | | | SCAC4 |
| 34 | CPRT | CLIPPER TRANSPORTATION | | | SCAC3 |
| 35 | CPRT | CENTRAL PLAINS TRANSPORT LLC | | | SCAC4 |
| 36 | CPRU | CP RAIL (CANADIAN PACIFIC RAILWAY) | | | SCAC4 |
| 37 | CPRV | C & C PRODUCE | | | SCAC4 |
| 38 | CPRW | CAPITOL RECLAIMATION CO | | | SCAC3 |
| 39 | CPRW | CASH PRESTO SA DE CV | | | SCAC4 |
| 40 | CPRX | Carolina Power & Light Co. | added 7/1977; 1/1980-1/1994; eliminated 7/1998; 7/2000-7/2005 (not listed) | | NAKINA |
| 41 | CPRX | Contact Process Co. | 8/1920-7/1923 | | NAKINA |
| 42 | CPRX | Carolina Power & Light Co. | added 7/77; 1/80-1/94; eliminated 7/98; 7/2000 | | NRHS |
| 43 | CPRX | *CONTACT PROCESS CO. | | | PWRC |
| 44 | CPRX | +CAROLINA POWER & LIGHT CO | | | PWRC |
| 45 | CPRX | Carolina Power and Light | | | RSRV |
| 46 | CPRX | CAROLINA POWER & LIGHT CO | | | SCAC4 |
| 47 | CPRY | CHAPIN, RONALD L | | | SCAC3 |
| 48 | CPRZ | CP RAIL [CANADIAN PACIFIC LTD.] | | | PWRC |
| 49 | CPRZ | Canadian Pacific Railway | | | RSRV |
| 50 | CPRZ | CANADIAN PACIFIC RAILWAY CO | | | SCAC4 |
