| 1 | CKA | Cook Inlet Aviation, Inc. | Callsign: Cook-Air, | USA | AVCODES |
| 2 | CKA | Cook Inlet Aviation | | | ICAO1 |
| 3 | CKAA | COKER, A AND COMPANY LTD | | | SCAC3 |
| 4 | CKAB | CK AND B INC | | | SCAC4 |
| 5 | CKAD | C & K TRUCKING WHEELERSBURG OHIO | | | SCAC4 |
| 6 | CKAF | COKER AIR FREIGHT INC | | | SCAC3 |
| 7 | CKAH | CALIFORNIAS TRUCKLINE TRANSPORT | | | SCAC4 |
| 8 | CKAJ | COUNTRY KIDS TRUCKING LLC | | | SCAC4 |
| 9 | CKAL | CHECK AIR CARGO LTD | | | SCAC3 |
| 10 | CKAN | CLARK TRANSPORTATION SERVICE INC | | | SCAC3 |
| 11 | CKAO | CIRCLE K TRANSPORTATION LLC | | | SCAC4 |
| 12 | CKAR | CASANOVA NAZARIO, KARINA | | | SCAC4 |
| 13 | CKAS | CLARK & SNIVELY TRUCKING LIMITED | | | SCAC3 |
| 14 | CKAT | CINKAT TRANSPORTATION INC | | | SCAC3 |
| 15 | CKAU | COOL CARRIERS | | | SCAC3 |
| 16 | CKAV | COMET TRUCKING INC | | | SCAC4 |
| 17 | CKAW | CHICKASAW CHARTER | | | SCAC3 |
