| 1 | CUO | Enrique Cuahonte Delgado, C.C., Marta Amezclia de Cuahonte | Callsign: Cuahonte, Name changed to Aerocuahonte, S.A. de C.V. | MEX | AVCODES |
| 2 | CUO | Aerocuahonte, S.A. de C.V. | Callsign: Cuahonte, Name changed from Enrique Cuahonte Delgado, C.C., Marta Amezclia de Cuahonte | MEX | AVCODES |
| 3 | CUO | Aerocuahonte | | | ICAO1 |
| 4 | CUOC | CURTESY OIL CO | | | SCAC4 |
| 5 | CUOG | CUSTOM TRUCKING | | | SCAC3 |
| 6 | CUOH | The Columbus & Ohio River Rail Road Co. | added 7/1992; 1/1994-7/2005 | | NAKINA |
| 7 | CUOH | The Columbus & Ohio River Rail Road Co. | added 7/92; 1/94-7/2000 | | NRHS |
| 8 | CUOH | COLUMBUS & OHIO RIVER RAIL ROAD COMPANY | | | PWRC |
| 9 | CUOH | Columbus and Ohio River Rail Road | | | RSRV |
| 10 | CUOH | COLUMBUS & OHIO RAILROAD COMPANY | | | SCAC3 |
| 11 | CUOH | COLUMBUS & OHIO RAILROAD COMPANY | | | SCAC4 |
| 12 | CUOI | COMMUNITY OIL COMPANY INC | | | SCAC3 |
| 13 | CUOK | CUSTOM TRUCKING INC | | | SCAC3 |
| 14 | CUOL | CUSTOM LIMOUSINE | | | SCAC3 |
| 15 | CUOM | CUSTOM TRANSPORT, INC | | | SCAC3 |
| 16 | CUOM | CURTIS OIL COMPANY INC | | | SCAC4 |
| 17 | CUON | CUSTOM CARRIERS INC | | | SCAC3 |
| 18 | CUOS | CUSTOM TRUCK SERVICE, INC | | | SCAC3 |
| 19 | CUOS | CURT OLESEN & SON TANK LINES | | | SCAC4 |
| 20 | CUOT | CUSTOMIZED TRANPORTATION INC | | | SCAC3 |
| 21 | CUOT | CEVA LOGISTICS US INC | | | SCAC4 |
| 22 | CUOW | CURLEYS TOWING | | | SCAC3 |
