| 1 | CAI | Cal Air International | IATA: EN, Callsign: Caljet, Name changed to Novair | GB | AVCODES |
| 2 | CAI | Corporacion Aereo Internacional, S.A. de C.V. | Callsign: Corpointernacional, | MEX | AVCODES |
| 3 | CAI | Catalina Airlines, Inc. | Callsign: Catalina, | USA | AVCODES |
| 4 | CAI | Corendon Airlines | | | ICAO1 |
| 5 | CAIA | CAL ATLANTIC TRANSPORTATION | | | SCAC3 |
| 6 | CAIB | CAT INCORPORATED | | | SCAC3 |
| 7 | CAIC | CAPITOL ATLANTIC TRANSIT INC | | | SCAC4 |
| 8 | CAIE | CALIFORNIA TRANSPORT ENTERPRISES, INC | | | SCAC3 |
| 9 | CAIE | CALIFORNIA TRANSPORT ENTERPRISES IN | | | SCAC4 |
| 10 | CAIG | CARRIERS CARTAGE COMPANY INC | | | SCAC3 |
| 11 | CAIG | CORPORACION AGRICOLA INTERNACIONAL | | | SCAC4 |
| 12 | CAII | CAL INLAND INC | | | SCAC3 |
| 13 | CAII | CONVEY-ALL INDUSTRIES INC | | | SCAC4 |
| 14 | CAIJ | CARLSON, L E SCRAP IRON AND METAL I | | | SCAC3 |
| 15 | CAIK | CARBEN ASPHALT INC | | | SCAC4 |
| 16 | CAIM | COACHES AMERICAN TRANSFERS & TOURS | | | SCAC3 |
| 17 | CAIN | CASCADE INDUSTRIES LTD | | | SCAC4 |
| 18 | CAIO | C A C INTERNATIONAL LLC | | | SCAC4 |
| 19 | CAIP | CARDINAL TRANSPORTATION CO INC | | | SCAC3 |
| 20 | CAIP | CARAT SHIPPING COMPANY | | | SCAC4 |
| 21 | CAIQ | CAVILESI TRUCKING CO | | | SCAC3 |
| 22 | CAIR | CHART-AIR SERVICES CO | | | SCAC3 |
| 23 | CAIR | Canadair Ltd. | | CDN | TRAFFIC |
| 24 | CAIRO | CARIO RAILROAD | | | PWRC |
| 25 | CAIRO | | City: Cairo | | TRAFFIC |
| 26 | CAIS | CLEVELAND AIR SPECIALIST | | | SCAC3 |
| 27 | CAIS | CUBE AUTOMATION INC | | | SCAC4 |
| 28 | CAIT | CAINE TRANSFER | | | SCAC3 |
| 29 | CAIT | CAINE TRANSFER | | | SCAC4 |
| 30 | CAIU | CAI INTERNATIONAL | | USA | BIC |
| 31 | CAIU | Cai International | | | RSRV |
| 32 | CAIU | CONCEPT CARGO INC | | | SCAC3 |
| 33 | CAIU | CAI INTERNATIONAL | | | SCAC4 |
| 34 | CAIV | CHARLESTON ALUMINUM TRANSPORTATION | | | SCAC4 |
| 35 | CAIX | Cominco American, Inc. | added 4/1966; 10/1966-1/1980; eliminated 5/1983 | | NAKINA |
| 36 | CAIX | Cominco American, Inc. | added 4/66; 10/66-1/80; eliminated 5/83 | | NRHS |
| 37 | CAIX | COMINCO AMERICAN, INC. | | | PWRC |
| 38 | CAIZ | CON AGRA INDUSTRIES | | | PWRC |
