| 1 | CAM | Village Aviation Inc. d/b/a Camai Air | IATA: R9, Callsign: Air Camai, IATA Prefix: 451, Name changed from Camai Air | USA | AVCODES |
| 2 | CAM | Camai Air | IATA: R9, Callsign: Air Camai, IATA Prefix: 451, Name changed to Village Aviation Inc. d/b/a Camai Air | USA | AVCODES |
| 3 | CAM | Canadian Armed Forces | Callsign: Canadian Military, ICAO designator changed to CFC | CDN | AVCODES |
| 4 | CAM | Camai Air | IATA: R9 | | ICAO1 |
| 5 | CAM | CAMPUS COACH LINES | | | SCAC4 |
| 6 | CAM | Cogne - Acquefredde, mining rail | | I | TRAFFIC |
| 7 | CAMA | CAMACH | | | SCAC4 |
| 8 | CAMC | CAMP CURTIN TRANSFER, INC | | | SCAC3 |
| 9 | CAMC | CAMP CURTIN TRANSFER, INC | | | SCAC4 |
| 10 | CAMD | CAMPBELLS EXPRESS | | | SCAC3 |
| 11 | CAMD | COLEMAN AMERICAN MOVING SERVICES IN | | | SCAC4 |
| 12 | CAME | COLEMAN AMERICAN MOVING SERVICES IN | | | SCAC4 |
| 13 | CAMF | CANADIAN AERO MANUFACTURING | | | SCAC4 |
| 14 | CAMG | COLEMAN AMERICAN MOVING SERVICES IN | | | SCAC4 |
| 15 | CAMH | CAMPBELLS MOVING COMPANY, INC | | | SCAC3 |
| 16 | CAMH | CAMACHO PORTILLO, JUAN CARLOS | | | SCAC4 |
| 17 | CAMI | CAN AM | | | SCAC3 |
| 18 | CAMJ | CAMELOT COMPANY, THE | | | SCAC4 |
| 19 | CAMK | C A MOTOR TRANSPORT CO | | | SCAC3 |
| 20 | CAMK | CAN-AM RV CENTRE | | | SCAC4 |
| 21 | CAMN | CROWLEY AMERICAN TRANSPORT INC | | | SCAC3 |
| 22 | CAMN | CROWLEY LINER SERVICES INC | | | SCAC4 |
| 23 | CAMO | CAL-STATE MOVING & STG | | | SCAC3 |
| 24 | CAMO | CAMACHO, RICARDO | | | SCAC4 |
| 25 | CAMP | CAMPOS EXPRESS INC | | | SCAC3 |
| 26 | CAMPUS | Campus Coach | | USA | TRAFFIC |
| 27 | CAMQ | CAMPANELLA TRUCKING CORP | | | SCAC3 |
| 28 | CAMR | CO-AM TRANSPORT SERVICES INC | | | SCAC3 |
| 29 | CAMR | Cambrian Railways | | GB | TRAFFIC |
| 30 | CAMS | CAREY MOVING & STORAGE INC | | | SCAC3 |
| 31 | CAMT | CAMBEIS TRUCKING COMPANY, INC | | | SCAC3 |
| 32 | CAMT | CAM-SCOTT INTERNATIONAL INC | | | SCAC4 |
| 33 | CAMU | MGC PURE CHEMICALS AMERICA | | USA | BIC |
| 34 | CAMU | MGC Pure Chemicals America | | | RSRV |
| 35 | CAMV | CAMACH | | | SCAC4 |
| 36 | CAMW | CATCO | | | SCAC3 |
| 37 | CAMW | CALIFORNIA MIDWEST XPRESS INC | | | SCAC4 |
| 38 | CAMX | Chrysler Rail Transportation Corp. | added 1/1988; 1/1994 (not listed); eliminated 1/1997 | | NAKINA |
| 39 | CAMX | Chrysler Capital Transportation Services, Inc. | added 4/1987; eliminated 1/1988 | | NAKINA |
| 40 | CAMX | Canamax Commodity Corp. | added 10/1981; eliminated 1/1985 | | NAKINA |
| 41 | CAMX | Canamax Commodity Corp. | added 10/81; eliminated 1/85 | | NRHS |
| 42 | CAMX | Chrysler Capital Transportation Services, Inc. | added 4/87; eliminated 1/88 | | NRHS |
| 43 | CAMX | Chrysler Rail Transportation Corp. | added 1/88; 1/94; eliminated 1/97 | | NRHS |
| 44 | CAMX | *CANAMAX COMMODITY CORP. | | | PWRC |
| 45 | CAMX | *CHRYSLER RAIL TRANSPORTATION CORPORATION | | | PWRC |
| 46 | CAMX | Canamax Commodity Corporation | | | RSRV |
| 47 | CAMY | CARL MESSENGER SERVICE INC | | | SCAC3 |
| 48 | CAMY | CAM TRANSPORTATION SERVICES LLC | | | SCAC4 |
