| 701 | CANV | CANOVA MOVING & STORAGE CO | | | SCAC3 |
| 702 | CANV | CANOVA MOVING & STORAGE CO | | | SCAC4 |
| 703 | CANW | CANTRELL, RAYMOND W | | | SCAC3 |
| 704 | CANX | CANAC Inc. | 7/2005 (not listed) | | NAKINA |
| 705 | CANX | CANAC International, Inc. | added 1/1993; 1/1994-7/2000; eliminated 7/2004 | | NAKINA |
| 706 | CANX | Canadian National Ry. Co. | eliminated 10/1993 | | NAKINA |
| 707 | CANX | Canadian Industries Ltd., De Salaberry Works, Explosives and Ammunition Division | eliminated 4/1978 | | NAKINA |
| 708 | CANX | Canadian Industries Ltd., Explosives and Ammunition Division | added 1/1966; 10/1966-1/1975 | | NAKINA |
| 709 | CANX | John H. Grace Co. | added 10/1953; eliminated 4/1954; 7/1954 | | NAKINA |
| 710 | CANX | Canfield Tank Line Co. | 8/1920-7/1923 | | NAKINA |
| 711 | CANX | The Canfield Tank Line | 7/1930-1/1952; eliminated 10/1953 | | NAKINA |
| 712 | CANX | The Canfield Tank Line | 4/38-1/52; eliminated 10/53 | | NRHS |
| 713 | CANX | John H. Grace Co. | added 10/53; eliminated 4/54 | | NRHS |
| 714 | CANX | Canadian Industries Ltd., Explosives and Ammunition Division | added 1/66; 10/66-1/75 | | NRHS |
| 715 | CANX | Canadian Industries Ltd., De Salaberry Works, Explosives and Ammunition Division | eliminated 4/78 | | NRHS |
| 716 | CANX | Canadian National Ry. Co. | eliminated 10/93 | | NRHS |
| 717 | CANX | CANAC International, Inc. | added 1/93; 1/94-7/2000 | | NRHS |
| 718 | CANX | *CANADIAN INDUSTRIES LTD. | | | PWRC |
| 719 | CANX | *JOHN H.GRACE CO.[CANFIELD TANK LINE] | | | PWRC |
| 720 | CANX | +CANAC INTERNATIONAL INC (CANADIAN NATIONAL RWY. CO.) | | | PWRC |
| 721 | CANX | CANAC International | | | RSRV |
| 722 | CANX | CANADIAN IND LTD | | | SCAC3 |
| 723 | CANX | SAVAGE TRANSPORTATION MANAGEMENT IN | | | SCAC4 |
| 724 | CANY | CANYON TIRE SALES INC | | | SCAC4 |
| 725 | CAO | Atlantic Air | Callsign: Atlantic Cape, | ZA | AVCODES |
| 726 | CAO | Air China Cargo Co., Ltd. | IATA: CA, Callsign: Airchina Freight, IATA Prefix: 999, | PRC | AVCODES |
| 727 | CAO | Air China Cargo | | | ICAO1 |
| 728 | CAO | Air China Cargo | | PRC | TRAFFIC |
| 729 | CAOB | CAPOBIANCO, BEN TRUCKING INC | | | SCAC3 |
| 730 | CAOD | CARROLL, STEVEN P INC | | | SCAC4 |
| 731 | CAOF | CARROLL TRANSPORTATION | | | SCAC3 |
| 732 | CAOG | CARROLL TRUCKING INC | | | SCAC3 |
| 733 | CAOI | CANDOR OIL COMPANY INC | | | SCAC4 |
| 734 | CAOJ | CARLOTTA STAR | | | SCAC4 |
| 735 | CAOK | CAROLINA TRANSPORT OF KERNERSVILLE | | | SCAC3 |
| 736 | CAOK | CASTELLON TRUCKING | | | SCAC4 |
| 737 | CAOL | CAROLS LIVERY SERVICE | | | SCAC3 |
| 738 | CAOL | CALOS TRANSPORT | | | SCAC4 |
| 739 | CAOM | CALIFORNIA MICROWAVE | | | SCAC3 |
| 740 | CAOO | CALLAHAN INTERNATIONAL INC | | | SCAC3 |
| 741 | CAOO | CAPOANO TRANSPORTATION LLC | | | SCAC4 |
| 742 | CAOP | C & P TRANSPORTATION COMPANY | | | SCAC3 |
| 743 | CAOQ | CALIFORNIA TRUCK LINES | | | SCAC3 |
| 744 | CAOQ | CADDO MOVERS OF LAWTON INC | | | SCAC4 |
| 745 | CAOR | CAIN OIL INC | | | SCAC4 |
| 746 | CAOS | CARLSON TRUCKING INC | | | SCAC3 |
| 747 | CAOT | CARON TRANSPORT LTD | | | SCAC3 |
| 748 | CAOT | CARON TRANSPORT LTD | | | SCAC4 |
| 749 | CAOU | INTERNATIONAL CAS CONTAINER CORPORA | | | SCAC4 |
| 750 | CAOV | CARPENTER TRANSFER | | | SCAC3 |
| 751 | CAOV | CALIFORNIA OVERLAND LTD | | | SCAC4 |
| 752 | CAOX | Westlake CA & O | added 7/1999; 7/2000-7/2005 | | NAKINA |
| 753 | CAOX | B.F. Goodrich Co.—Chemical Group | eliminated 7/1999 | | NAKINA |
| 754 | CAOX | The B.F. Goodrich Co. & Chemical Group | added 10/1995 | | NAKINA |
| 755 | CAOX | The B.F. Goodrich Co. & Chemical Group | added 10/95 | | NRHS |
| 756 | CAOX | B.F. Goodrich Co.--Chemical Group | eliminated 7/99 | | NRHS |
| 757 | CAOX | Westlake CA & O | added 7/99; 7/2000 | | NRHS |
| 758 | CAOX | *B. F. GOODRICH COMPANY - CHEMICAL GROUP | | | PWRC |
| 759 | CAOX | +WESTLAKE CA & O | | | PWRC |
| 760 | CAOX | Westlake CA and O | | | RSRV |
| 761 | CAOX | WESTLAKE CA & O | | | SCAC4 |
| 762 | CAOY | CAL-O-TRUX | | | SCAC3 |
| 763 | CAOY | CARROLL & CARROLL INC | | | SCAC4 |
| 764 | CAP | Capitol Airlines, Inc. | IATA: CL, Callsign: Capitol, Desigantor CL recalled by IATA | USA | AVCODES |
| 765 | CAP | U.S. Air Force Auxiliary/Civil Air Patrol | Callsign: Cap, | USA | AVCODES |
| 766 | CAPB | Capital Bus | City: Taipei | RC | TRAFFIC |
| 767 | CAPC | Capital Coaches | | GB | TRAFFIC |
| 768 | CAPD | CAMPUS DIVISION OF PEYLIM | | | SCAC3 |
| 769 | CAPE | CAPITOL STORAGE CORPORATION | | | SCAC3 |
| 770 | CAPG | CAPITOL TRANSPORTATION GROUP INC | | | SCAC4 |
| 771 | CAPI | CAROLINA PARCEL INC | | | SCAC4 |
| 772 | CAPJ | CAPITAL EXPRESS INC | | | SCAC3 |
| 773 | CAPJ | CARDAN TRANSPORT | | | SCAC4 |
| 774 | CAPK | CAMPBELL, VERN TRANSPORT INC | | | SCAC3 |
| 775 | CAPL | CAPITAL EXPRESS INC | | | SCAC4 |
| 776 | CAPM | CAPPS TRUCKING | | | SCAC3 |
| 777 | CAPO | CAPP HOMES DIVISION (EVANS PRODUCTS | | | SCAC3 |
| 778 | CAPP | CAN AM PRECAST PRODUCTS LTD | | | SCAC4 |
| 779 | CAPQ | CAPPOZZI TRUCK LINES | | | SCAC3 |
| 780 | CAPR | Carolina Piedmont Division, South Carolina Central R.R. Co., Inc. | | USA | TRAFFIC |
| 781 | CAPS | CAPLES TRUCKING | | | SCAC3 |
| 782 | CAPS | CAPS INC | | | SCAC4 |
| 783 | CAPT | CAPONEY TIRE TRUCKING INC | | | SCAC3 |
| 784 | CAPT | CapTrain | | EU | TRAFFIC |
| 785 | CAPTRAM | Cape Tramways | City: Cape Town | ZA | TRAFFIC |
| 786 | CAPU | CAPE CONTAINER LINE (UK) LTD | | GB | BIC |
| 787 | CAPU | CAPE CONTAINERS LEASING LTD | | | SCAC3 |
| 788 | CAPU | CONS A R P SOCIETA | | | SCAC4 |
| 789 | CAPX | TransAlta Utilities Corp. | added 10/1981; 1/1994-7/2000; eliminated 4/2002; 7/2005 (not listed) | | NAKINA |
| 790 | CAPX | Clay Arthur Pierce (Pierce Oil Corp.) | 8/1920 | | NAKINA |
| 791 | CAPX | The Capital City Products Co. | 1/1941-4/1961; eliminated 7/1965 | | NAKINA |
| 792 | CAPX | The Capital City Products Co. | 1/52-4/61; eliminated 7/65 | | NRHS |
| 793 | CAPX | TransAlta Utilities Corp. | added 10/81; 1/94-7/2000 | | NRHS |
| 794 | CAPX | *CLAY ARTHUR PIERCE (PIERCE OIL CORP.) | | | PWRC |
| 795 | CAPX | *CAPITAL CITY PRODUCTS CO. | | | PWRC |
| 796 | CAPX | +TRANSALTA UTILITIES CORPORATION | | | PWRC |
| 797 | CAPX | Capital City Products (TransAlta Utilities) | | | RSRV |
| 798 | CAPX | CANADA PACKERS LTD | | | SCAC3 |
| 799 | CAPX | TRANSALTA UTILITIES CORPORATION | | | SCAC4 |
| 800 | CAPZ | CAL PORTLAND CEMENT | | | PWRC |
