| 1 | CAA | Atlantic Southeast Airlines, Inc. | IATA: EV, Callsign: Candler, IATA Prefix: 862, ICAO designator changed to ACY. ICAO callsign change to Acey. ICAO designator changed from ASE | USA | AVCODES |
| 2 | CAA | Carnival Air Lines | IATA: KW, Merged into Pan American World Airways, Inc. | USA | AVCODES |
| 3 | CAA | Central American Airways | Callsign: Cenam, | USA | AVCODES |
| 4 | CAA | Civil Aviation Authority of the Czech Republic | Callsign: Inspector, | CZ | AVCODES |
| 5 | CAA | Atlantic Southeast Airlines | | | ICAO1 |
| 6 | CAAB | CATALANO BROS INC | | | SCAC3 |
| 7 | CAAB | CATALANO BROS INC | | | SCAC4 |
| 8 | CAAC | CLASSIC TRANSPORTATION INC | | | SCAC3 |
| 9 | CAAD | CANADIAN PROPELLER LTD | | | SCAC4 |
| 10 | CAAE | CAMPBELL'S AUTO EXPRESS | | | SCAC3 |
| 11 | CAAE | CAMPBELLS AUTO EXPRESS | | | SCAC4 |
| 12 | CAAH | CALIFORNIA AND HAWAIIAN SUGAR COMPA | | | SCAC3 |
| 13 | CAAH | COULSON AIRCRANE LTD | | | SCAC4 |
| 14 | CAAI | CALDERON AIR TRANSPORT INC | | | SCAC3 |
| 15 | CAAJ | CALARCO INC | | | SCAC3 |
| 16 | CAAK | CAAMANO TRUCKING | | | SCAC3 |
| 17 | CAAK | CALEDON BOATWORKS | | | SCAC4 |
| 18 | CAAL | CANADIAN | | | SCAC4 |
| 19 | CAAM | C & A MOTOR EXPRESS CO | | | SCAC3 |
| 20 | CAAM | CAN/AM | | | SCAC4 |
| 21 | CAAN | CAL-ATLANTIC NORTH AMERICA | | | SCAC3 |
| 22 | CAAN | C PAK & CO | | | SCAC4 |
| 23 | CAAO | CALMOS COMBINING CO | | | SCAC3 |
| 24 | CAAO | CAMELI, J C TRUCKING | | | SCAC4 |
| 25 | CAAP | CALIFORNIA APPLIANCE INSTALLERS, IN | | | SCAC3 |
| 26 | CAAP | C & A PROJECTS LTD | | | SCAC4 |
| 27 | CAAQ | CALIFORNIA ALFALFA CUBE CO | | | SCAC3 |
| 28 | CAAQ | CALCO TRANSPORTATION INC | | | SCAC4 |
| 29 | CAAR | CAMPOS ARREDONDO, RUFINO | | | SCAC4 |
| 30 | CAAS | CASCADAS COMPANIA ARMADORA S A | | | SCAC3 |
| 31 | CAAS | CASCADAS COMPANIA ARMADORA S A | | | SCAC4 |
| 32 | CAAT | CALIFORNIA AMMONIA TRANSPORT INC | | | SCAC3 |
| 33 | CAAU | CAI INTERNATIONAL | | USA | BIC |
| 34 | CAAU | Cai International | | | RSRV |
| 35 | CAAV | CACTUS RECYCLING INC | | | SCAC4 |
| 36 | CAAW | CONTE, A A INC | | | SCAC3 |
| 37 | CAAX | MHC Inc., Wholly Owned Subsidiary of ConAgra Foods | added 1/2002; eliminated 7/2002 | | NAKINA |
| 38 | CAAX | MHC Inc., Wholly Owned Subsidiary of ConAgra, Inc. | added 10/1992; 1/1994-7/2000; eliminated 1/2002 | | NAKINA |
| 39 | CAAX | Arrow Industries, Inc. | added 4/1990; eliminated 10/1992 | | NAKINA |
| 40 | CAAX | The Calumet & Arizona Mining Co. | 8/1920-7/1930 | | NAKINA |
| 41 | CAAX | Arrow Industries, Inc. | added 4/90; eliminated 10/92 | | NRHS |
| 42 | CAAX | MHC Inc., Wholly Owned Subsidiary of ConAgra, Inc. | added 10/92; 1/94-7/2000 | | NRHS |
| 43 | CAAX | MHC, INC., WHOLLY OWNED SUB. OF CONAGRA, INC. | | | PWRC |
| 44 | CAAY | C&A TRANSPORTATION, INC | | | SCAC3 |
