| 13601 | CPSK | COOPER AND SONS TRUCKING, INC | | | SCAC3 |
| 13602 | CPSK | CONGELOSI, PAUL SALES INC | | | SCAC4 |
| 13603 | CPSL | COMPLETE TRUCK SERVICE INC | | | SCAC3 |
| 13604 | CPSL | CAPITOL SHIPPING AND LOGISTICS | | | SCAC4 |
| 13605 | CPSM | COMPANION TRAVEL SERVICES | | | SCAC3 |
| 13606 | CPSN | COOPER TRANSPORTATION | | | SCAC3 |
| 13607 | CPSN | COOPER TRANSPORTATION | | | SCAC4 |
| 13608 | CPSQ | CPS DELIVERY SYSTEM INC | | | SCAC3 |
| 13609 | CPSQ | CPS DELIVERY SYSTEM INC | | | SCAC4 |
| 13610 | CPSR | COOPER POWER SYSTEMS TRANSPORTATION | | | SCAC4 |
| 13611 | CPSS | COMPASS TRANSPORTATION INC | | | SCAC3 |
| 13612 | CPStL | CHICAGO PEORIA & St. LOUIS RR | | | PWRC |
| 13613 | CPSU | HAPAG LLOYD A.G | | D | BIC |
| 13614 | CPSU | CP Ships | | | RSRV |
| 13615 | CPSU | CANADIAN PACIFIC STEAMSHIPS LTD | | | SCAC3 |
| 13616 | CPSU | CP SHIPS | | | SCAC4 |
| 13617 | CPSU | Canadian Pacific Steamships | The ships were british flagged. | CDN | TRAFFIC |
| 13618 | CPSV | COMPLETE TRUCKING SERVICE INC | | | SCAC3 |
| 13619 | CPSV | CORPORATE RELOCATION SERVICES LLC | | | SCAC4 |
| 13620 | CPSW | COLES PLANT SOIL INC | | | SCAC3 |
| 13621 | CPSX | Commercial Plastics Systems, Inc. | added 7/1983; eliminated 10/1984 | | NAKINA |
| 13622 | CPSX | California Cedar Products Co. | 1/1952-10/1957; eliminated 7/1959 | | NAKINA |
| 13623 | CPSX | California Cedar Products Co. | 1/52-10/57; eliminated 7/59 | | NRHS |
| 13624 | CPSX | Commercial Plastics Systems, Inc. | eliminated 10/84 | | NRHS |
| 13625 | CPSX | *CALIFORNIA CEDAR PRODUCTS CO. | | | PWRC |
| 13626 | CPSX | *RETIRED 01-24-94 ATP (1975) [COMMERCIAL PLASTICS SYSTEM INC.] | | | PWRC |
| 13627 | CPSX | Commercial Plastics Systems | | | RSRV |
| 13628 | CPSY | CORPORATE SHIPPERS TRANSPORT INC | | | SCAC3 |
| 13629 | CPSY | COMMERCIA | | | SCAC4 |
| 13630 | CPT | Corporate Air | Callsign: Air Spur, | USA | AVCODES |
| 13631 | CPT | Corporate Air | | | ICAO1 |
| 13632 | CPT | Canadian Pacific Ry. Co. | added 1/1997; 7/2000-7/2005 | | NAKINA |
| 13633 | CPT | CP Rail System | eliminated 1/1997 | | NAKINA |
| 13634 | CPT | CP Rail | added 7/1988; 1/1994 | | NAKINA |
| 13635 | CPT | CP Rail | added 7/88; 1/94 | | NRHS |
| 13636 | CPT | CP Rail System | eliminated 1/97 | | NRHS |
| 13637 | CPT | Canadian Pacific Ry. Co. | added 1/97; 7/2000 | | NRHS |
| 13638 | CPT | CP RAIL [CANADIAN PACIFIC RWY.] | | | PWRC |
| 13639 | CPT | Canadian Pacific Railway End Of Train Devices | | | RSRV |
| 13640 | CPT | Conpet SA Ploiesti | | RO | VKM |
| 13641 | CPTB | CAPITOL TRANSPORTATION | | | SCAC4 |
| 13642 | CPTC | Chicago Produce Terminal | 1/1975; eliminated 10/1978 | | NAKINA |
| 13643 | CPTC | Chicago Produce Terminal | 1/75; eliminated 10/78 | | NRHS |
| 13644 | CPTC | CHICAGO PRODUCE TERMINAL | | | PWRC |
| 13645 | CPTC | CAMP TRANSPORTATION INC | | | SCAC3 |
| 13646 | CPTC | Canadian Pacific Transport Company | | CDN | TRAFFIC |
| 13647 | CPTD | CHIP TRUCKING INC | | | SCAC3 |
| 13648 | CPTD | CHERRY POINT PRODUCTS INC | | | SCAC4 |
| 13649 | CPTG | COMPASS MOVING & STORAGE | | | SCAC4 |
| 13650 | CPTH | CAPITAL CITY TRUCKING INC | | | SCAC3 |
| 13651 | CPTH | CHIPTIME RESULTS INC | | | SCAC4 |
| 13652 | CPTI | CAPITAL TRANSFER & STORAGE | | | SCAC3 |
| 13653 | CPTI | CAPITAL TRANSFER & STORAGE | | | SCAC4 |
| 13654 | CPTJ | CROSS POINT TRANSPORTATION INC | | | SCAC4 |
| 13655 | CPTK | CAPPELLO TRUCKING INC | | | SCAC3 |
| 13656 | CPTK | CLIFFORD PRODUCE TRUCKING INC | | | SCAC4 |
| 13657 | CPTM | COPTER MOVING & STORAGE | | | SCAC3 |
| 13658 | CPTM | COMPLETE TRANSPORT SYSTEMS LLC | | | SCAC4 |
| 13659 | CPTM | Companhia Paulista de Trens Metropolitanos | City: São Paulo | BR | TRAFFIC |
| 13660 | CPTN | CARPENTER, TERRY L TRUCKING INC | | | SCAC4 |
| 13661 | CPTO | CONSOLIDATED TRANSPORTATION CO | | | SCAC3 |
| 13662 | CPTP | CADILLAC PRODUCTS TRUCKING CO | | | SCAC3 |
| 13663 | CPTQ | CENTRAL PLAINS TRUCKING CORP | | | SCAC3 |
| 13664 | CPTQ | CPT INC | | | SCAC4 |
| 13665 | CPTR | CAPITAL TRANSPORT LTD | | | SCAC3 |
| 13666 | CPTR | COASTAL PETROLEUM TRANSPORT LLC | | | SCAC4 |
| 13667 | CPTRO | Captrain Romania | | RO | TRAFFIC |
| 13668 | CPTRO | CAPTRAIN ROMANIA SRL | | RO | VKM |
| 13669 | CPTS | CURATOLA, PETER TRUCKING INC | | | SCAC3 |
| 13670 | CPTS | CONSUMERS PETROLEUM & TRANSPORT SVC | | | SCAC4 |
| 13671 | CPTT | CAPITOL TRANSPORT COMPANY INC | | | SCAC3 |
| 13672 | CPTT | CAPITAL CORP | | | SCAC4 |
| 13673 | CPTU | TK SRT | | RUS | BIC |
| 13674 | CPTU | C T M COMPANHIA PROTUGUESA DE TRANS | | | SCAC3 |
| 13675 | CPTU | CAPETAINER LEASING (PTY) LTD | | | SCAC4 |
| 13676 | CPTV | CUSTOM PRODUCE TRANSPORTATION LLC | | | SCAC4 |
| 13677 | CPTW | C P TRANSPORT | | | SCAC3 |
| 13678 | CPTW | COOPER T SMITH | | | SCAC4 |
| 13679 | CPTY | CAMPBELL TRUCKING | | | SCAC3 |
| 13680 | CPTY | CAPISTRAN TREVINO, RODOLFO | | | SCAC4 |
| 13681 | CPTZ | COMMODORE POINT TERMINAL | | | PWRC |
| 13682 | CPU | Air Support A/S | | DK | AVCODES |
| 13683 | CPUB | COMMANDE | | | SCAC4 |
| 13684 | CPUC | CALIFORNIA PUBLIC UTILITIES COMMISS | | | SCAC3 |
| 13685 | CPUD | CITY PICK-UP AND DELIVERY SERVICE | | | SCAC3 |
| 13686 | CPUD | CITY PICK UP & DELIVERY INC | | | SCAC4 |
| 13687 | CPUE | CHURCH, P ENTERPRISES | | | SCAC3 |
| 13688 | CPUF | CPU LOGISTICS | | | SCAC4 |
| 13689 | CPUG | COMPLETE TRUCKING COMPANY | | | SCAC3 |
| 13690 | CPUI | CAPE SUN SHIPPING CO LTD | | | SCAC4 |
| 13691 | CPUK | CHAPARRAL TRUCK LINES INC | | | SCAC3 |
| 13692 | CPUL | CHRISTIAN, PAUL E | | | SCAC3 |
| 13693 | CPUM | CAMPUS MOVERS INC | | | SCAC3 |
| 13694 | CPUN | CANNON, PAUL TRANSPORT INC | | | SCAC3 |
| 13695 | CPUO | CONSUMERS WAREHOUSE COMPANY | | | SCAC3 |
| 13696 | CPUP | CHIPEUR TRANSPORT LTD | | | SCAC3 |
| 13697 | CPUP | CONCRETE PUMP REPAIR | | | SCAC4 |
| 13698 | CPUQ | CAMELI PETROLEUM INTERNATIONAL & CO | | | SCAC3 |
| 13699 | CPUR | CHAMPAGNE AUTO TRANSPORT INC | | | SCAC3 |
| 13700 | CPUR | CANADIAN PURCELL MACHINERY | | | SCAC4 |
