| 13501 | CPPX | +CONSOLIDATED PAPERS, INC. | | | PWRC |
| 13502 | CPPX | Consolidated Papers | | | RSRV |
| 13503 | CPPX | CONSOLIDATED PAPERS, INC. | | | SCAC4 |
| 13504 | CPPY | CAPPYS TRANSPORT INC | | | SCAC3 |
| 13505 | CPPZ | *COMMONWEALTH PROPANE CO. | | | PWRC |
| 13506 | CPPZ | *CP RAIL [CANADIAN PACIFIC LTD.] | | | PWRC |
| 13507 | CPPZ | Canadian Pacific Railway | | | RSRV |
| 13508 | CPPZ | CANADIAN PACIFIC RAILWAY CO | | | SCAC4 |
| 13509 | CPQA | CAN-PAF AIRFREIGHT | | | SCAC3 |
| 13510 | CPQC | CAPRICORN TANKERS, INC. | | | SCAC3 |
| 13511 | CPQD | CLARE SHIPPING LTD | | | SCAC4 |
| 13512 | CPQE | COMPAGNIE MONAGASQUE MARITIME SAM | | | SCAC3 |
| 13513 | CPQF | CLIPPER FLEET | | | SCAC3 |
| 13514 | CPQH | CAPITAL FREIGHT MANAGEMENT | | | SCAC3 |
| 13515 | CPQI | CON-PAQ TRANSPORTATION INC | | | SCAC3 |
| 13516 | CPQI | COASTAL PLAINS ENTERPRISE INC | | | SCAC4 |
| 13517 | CPQJ | CHINESE-POLISH JOINT STOCK SHIPPING | | | SCAC3 |
| 13518 | CPQK | COMPASS ROSE INTERNATIONALTRANSPORT | | | SCAC4 |
| 13519 | CPQL | COMPLETE LEASING CONCEPTS | | | SCAC3 |
| 13520 | CPQL | COMPLETE LOGISTICS COMPANY THE | | | SCAC4 |
| 13521 | CPQM | CALERA PANAMA S A | | | SCAC3 |
| 13522 | CPQM | CALERA I E N E | | | SCAC4 |
| 13523 | CPQN | COPLAND TRUCKING | | | SCAC3 |
| 13524 | CPQN | COPLAND TRUCKING | | | SCAC4 |
| 13525 | CPQP | CP TRANSPORTERS INC | | | SCAC4 |
| 13526 | CPQQ | CROSS TRANSPORTATION LLC | | | SCAC4 |
| 13527 | CPQS | COMPASS CONSOLIDATORS INC | | | SCAC3 |
| 13528 | CPQS | COMPASS CONSOLIDATORS INC | | | SCAC4 |
| 13529 | CPQT | CANADIAN PACIFIC TRANSPORT (QUEBEC) | | | SCAC3 |
| 13530 | CPQT | COMPASS II INC | | | SCAC4 |
| 13531 | CPQV | CHAPAEVSK SHIPPING COMPANY LIMITED | | | SCAC3 |
| 13532 | CPQW | CROSSPOINT LOGISTICS LLC | | | SCAC4 |
| 13533 | CPR | Corporate Air, Inc. | Callsign: Corpair, | USA | AVCODES |
| 13534 | CPR | Corporate Air | | | ICAO1 |
| 13535 | CPR | Canadian Pacific Railway | Real: CP | CDN | TRAFFIC |
| 13536 | CPRB | COPPERHEAD TRANSPORT LTD | | | SCAC4 |
| 13537 | CPRC | COOPER CARTAGE COMPANY | | | SCAC3 |
| 13538 | CPRC | CROWLEY PUERTO RICO SERVICES INC | | | SCAC4 |
| 13539 | CPRD | CARLS PRODUCE | | | SCAC3 |
| 13540 | CPRF | CAROLINA-PUERTO RICO INC | | | SCAC3 |
| 13541 | CPRG | CAPITAL REFRIGERATED TRANSPORT INC | | | SCAC4 |
| 13542 | CPRH | CAPITAL PAPER RECYCLING INC | | | SCAC4 |
| 13543 | CPRI | CAMPORA TRANSPORTATION INC | | | SCAC3 |
| 13544 | CPRJ | CARPENTER, ROBERT LEE AND MARY E | | | SCAC3 |
| 13545 | CPRJ | CAMOU PALOMARES, RAFAEL ALBERTO | | | SCAC4 |
| 13546 | CPRK | CAPROCK TRUCKING INC | | | SCAC3 |
| 13547 | CPRK | CAPROCK TRANSPORT INC | | | SCAC4 |
| 13548 | CPRL | COOPER, L D TRUCKING & CONTRACTING, | | | SCAC3 |
| 13549 | CPRL | COOPER, L D TRUCKING & CONTRACTING, | | | SCAC4 |
| 13550 | CPRM | CHAPARRAL TRUCKING COMPANY INC | | | SCAC3 |
| 13551 | CPRM | CONCRETE PRE-MIX INC | | | SCAC4 |
| 13552 | CPRN | C P R INC | | | SCAC3 |
| 13553 | CPRN | CAPRON TRUCKING INC | | | SCAC4 |
| 13554 | CPRO | CONSOLIDATED DELIVERIES INC | | | SCAC3 |
| 13555 | CPRP | CAMPER, PETE TRUCKING | | | SCAC3 |
| 13556 | CPRQ | COOPER TRANSFER CO | | | SCAC3 |
| 13557 | CPRR | COOPER SERVICES TRANSPORTATION INC | | | SCAC3 |
| 13558 | CPRR | CAPRICE CARRIERS INC | | | SCAC4 |
| 13559 | CPRR | Central Pacific Railroad | | USA | TRAFFIC |
| 13560 | CPRS | Canadian Pacific Ry. | 7/2000-7/2005 | | NAKINA |
| 13561 | CPRS | Canadian Pacific Ry. | Jul-00 | | NRHS |
| 13562 | CPRS | CANADIAN PACIFIC RAILWAY (CP RAIL SYSTEM/CP TARIFF INC.) | | | PWRC |
| 13563 | CPRS | Canadian Pacific Railway | | | RSRV |
| 13564 | CPRS | CANADIAN PACIFIC RAILWAY | | | SCAC3 |
| 13565 | CPRS | CANADIAN PACIFIC RAILWAY | | | SCAC4 |
| 13566 | CPRT | CLIPPER TRANSPORTATION | | | SCAC3 |
| 13567 | CPRT | CENTRAL PLAINS TRANSPORT LLC | | | SCAC4 |
| 13568 | CPRU | CP RAIL (CANADIAN PACIFIC RAILWAY) | | | SCAC4 |
| 13569 | CPRV | C & C PRODUCE | | | SCAC4 |
| 13570 | CPRW | CAPITOL RECLAIMATION CO | | | SCAC3 |
| 13571 | CPRW | CASH PRESTO SA DE CV | | | SCAC4 |
| 13572 | CPRX | Carolina Power & Light Co. | added 7/1977; 1/1980-1/1994; eliminated 7/1998; 7/2000-7/2005 (not listed) | | NAKINA |
| 13573 | CPRX | Contact Process Co. | 8/1920-7/1923 | | NAKINA |
| 13574 | CPRX | Carolina Power & Light Co. | added 7/77; 1/80-1/94; eliminated 7/98; 7/2000 | | NRHS |
| 13575 | CPRX | *CONTACT PROCESS CO. | | | PWRC |
| 13576 | CPRX | +CAROLINA POWER & LIGHT CO | | | PWRC |
| 13577 | CPRX | Carolina Power and Light | | | RSRV |
| 13578 | CPRX | CAROLINA POWER & LIGHT CO | | | SCAC4 |
| 13579 | CPRY | CHAPIN, RONALD L | | | SCAC3 |
| 13580 | CPRZ | CP RAIL [CANADIAN PACIFIC LTD.] | | | PWRC |
| 13581 | CPRZ | Canadian Pacific Railway | | | RSRV |
| 13582 | CPRZ | CANADIAN PACIFIC RAILWAY CO | | | SCAC4 |
| 13583 | CPS | Compass Aviation | Callsign: Compass, | GB | AVCODES |
| 13584 | CPS | Compass International Airways Ltd. | Callsign: Compass, | GB | AVCODES |
| 13585 | CPS | CASS Professional Services, Corp. | Callsign: Swift Bird, | USA | AVCODES |
| 13586 | CPS | Compass International Airways | | | ICAO1 |
| 13587 | CPS | CHAPMAN STAGE LINES | | | SCAC4 |
| 13588 | CPS | SOCIEDAD ANÓNIMA DE OBRAS Y SERVICIOS, COPASA | | ES | VKM |
| 13589 | CPSA | COOPER STANDARD AUTOMOTIVE | | | SCAC4 |
| 13590 | CPSC | COMPASS TRANSPORTATION COPORATION | | | SCAC3 |
| 13591 | CPSC | COOP SERVICE CENTER | | | SCAC4 |
| 13592 | CPSD | C P S DISTRIBUTION SERVICES INC | | | SCAC3 |
| 13593 | CPSE | CPS EXPRESS | | | SCAC3 |
| 13594 | CPSE | CPS EXPRESS | | | SCAC4 |
| 13595 | CPSF | COMPASS AIR FREIGHT | | | SCAC3 |
| 13596 | CPSG | CALIFORNIA PACIFIC SHIPPING CO | | | SCAC3 |
| 13597 | CPSH | CROSS PETROLEUM SERVICES INC | | | SCAC3 |
| 13598 | CPSI | CAPITOL MOVING SERVICE | | | SCAC3 |
| 13599 | CPSI | CUSTOM PRODUCE SALES INC | | | SCAC4 |
| 13600 | CPSJ | CAPSHAW, JOE | | | SCAC3 |
