| 1 | CPO | Corporate Aircraft Company | Callsign: Mokan, | USA | AVCODES |
| 2 | CPO | Corporate Aircraft Company | | | ICAO1 |
| 3 | CPOB | CAPITOL TOURS INC | | | SCAC3 |
| 4 | CPOD | CAPODICE TRUCK LEASING | | | SCAC3 |
| 5 | CPOE | COOPER OIL CO INC | | | SCAC4 |
| 6 | CPOG | CENTERPORT INC | | | SCAC3 |
| 7 | CPOG | CENTERPORT INC | | | SCAC4 |
| 8 | CPOH | COMPUTER TRANSPORT OF OHIO INC | | | SCAC3 |
| 9 | CPOH | CARRION PICOS, HECTOR | | | SCAC4 |
| 10 | CPOI | C A P TRANSPORT INC | | | SCAC3 |
| 11 | CPOJ | C A T TRANSPORTATION INC | | | SCAC3 |
| 12 | CPOJ | CAPITAL LOGISTICS LLC | | | SCAC4 |
| 13 | CPOK | CONTAINER PRODUCTS OF OKLAHOMA | | | SCAC3 |
| 14 | CPOK | COSMIC POST INC | | | SCAC4 |
| 15 | CPOL | CAPITOL TILE IMPORT CO INC | | | SCAC3 |
| 16 | CPOL | CAPITAL OIL INC | | | SCAC4 |
| 17 | CPOM | CAPITOL MOTOR SERVICE INC | | | SCAC3 |
| 18 | CPON | CENTRE POINTE TRAVEL | | | SCAC3 |
| 19 | CPOO | CONTAINER POOL INC | | | SCAC3 |
| 20 | CPOP | COSMOPOLITAN TRAVEL SERVICE | | | SCAC3 |
| 21 | CPOQ | CAMP TRUCKING CO INC | | | SCAC3 |
| 22 | CPOR | CORPORATE COURIER INC | | | SCAC3 |
| 23 | CPOS | CORPORATE TRAVEL SERVICES | | | SCAC3 |
| 24 | CPOS | CAMPOS MARTINEZ, JOSE ARTURO | | | SCAC4 |
| 25 | CPOU | CARGO-PARTNER GMBH | | A | BIC |
| 26 | CPOV | CAMDEN PORT SERVICE INC | | | SCAC3 |
| 27 | CPOV | CPS DISTRIBUTION SERVICE | | | SCAC4 |
| 28 | CPOW | CANNON POWER TRANSMISSION | | | SCAC4 |
| 29 | CPOX | Consumers Energy Co. | added 1/2007 | | NAKINA |
| 30 | CPOX | Consumers Power Co. | added 7/1993; 1/1994; eliminated 1/1996; added 10/1996; eliminated 7/1997; 7/2000-7/2005 (not listed) | | NAKINA |
| 31 | CPOX | Consumer's Power Co. | added 7/1979; 1/1980; eliminated 7/1993 | | NAKINA |
| 32 | CPOX | Pennsylvania-Conley Tank Line a Division of General American Transportation Corp. | 4/1938 | | NAKINA |
| 33 | CPOX | City Point Oil Terminal, Inc. | 7/1932-7/1937 | | NAKINA |
| 34 | CPOX | City Point Oil Terminal, Inc. | Apr-38 | | NRHS |
| 35 | CPOX | Consumer's Power Co. | added 7/79; 1/80; eliminated 7/93 | | NRHS |
| 36 | CPOX | Consumers Power Co. | added 7/93; 1/94; eliminated 1/96; added 10/96; eliminated 7/97; 7/2000 | | NRHS |
| 37 | CPOX | *CITY POINT OIL TERMINAL, INC. | | | PWRC |
| 38 | CPOX | *PENNSYLVANIA-CONLEY TANK LINE DIV. GENERAL AMERICAN TRANSPORTATION CORP. | | | PWRC |
| 39 | CPOX | +CONSUMERS ENERGY CO [CONSUMERS POWER COMPANY] | | | PWRC |
| 40 | CPOX | Consumers Power | | | RSRV |
| 41 | CPOX | CONSUMERS POWER COMPANY | | | SCAC4 |
| 42 | CPOY | CARTER TRANSPORT | | | SCAC3 |
| 43 | CPOY | COMPLETE TRANSPORT LLC | | | SCAC4 |
