| 1 | COK | Ciskei International Airways Corp. | | ZA | AVCODES |
| 2 | COK | Imperial Charter Services Ltd. | Callsign: Cocktail, | GB | AVCODES |
| 3 | COKA | COSKLAV SHIPPING & CHARTERING | | | SCAC3 |
| 4 | COKA | CONSTRUCCIONES KANRI SA DE CV | | | SCAC4 |
| 5 | COKB | COCKE BROTHERS TRANSPORTATION SYSTE | | | SCAC3 |
| 6 | COKC | C O S TRUCKING INC | | | SCAC4 |
| 7 | COKD | CONNER TRUCKING | | | SCAC4 |
| 8 | COKE | COCA-COLA USA | | | SCAC3 |
| 9 | COKF | CAREY OF KANSAS CITY | | | SCAC4 |
| 10 | COKG | COLLINS TRUCKING LLC | | | SCAC4 |
| 11 | COKH | CORCORAN TRUCKING | | | SCAC3 |
| 12 | COKH | CORCORAN TRUCKING | | | SCAC4 |
| 13 | COKI | COOK TRUCKING SERVICE INC | | | SCAC3 |
| 14 | COKI | COLES TRUCKING | | | SCAC4 |
| 15 | COKJ | COOK, JAMAES R INC | | | SCAC3 |
| 16 | COKJ | CORDON TRUCKING | | | SCAC4 |
| 17 | COKM | CHEROKEE MARINE | | | SCAC3 |
| 18 | COKM | COLANTUONO & KLURMAN ASSOC | | | SCAC4 |
| 19 | COKN | COOK AND SONS INC | | | SCAC3 |
| 20 | COKO | COCKRELL, H C BONDED WAREHOUSE CORP | | | SCAC3 |
| 21 | COKO | CAROLINA COOL LOGISTICS INC | | | SCAC4 |
| 22 | COKP | COOK TRUCKING COMPANY | | | SCAC3 |
| 23 | COKQ | COOK TRUCKING & EQUIPMENT RENTALS | | | SCAC3 |
| 24 | COKQ | CROSS TRUCKING LLC | | | SCAC4 |
| 25 | COKR | COKER FREIGHT LINES INC | | | SCAC3 |
| 26 | COKR | COOK, ROBERT D | | | SCAC4 |
| 27 | COKS | CHAIN OLAKES EXPRESS INC | | | SCAC4 |
| 28 | COKU | COCA-COLA TRADING CO | | | SCAC3 |
| 29 | COKV | COOKS MOVING & STORAGE INC | | | SCAC3 |
| 30 | COKW | COOK, W L | | | SCAC3 |
| 31 | COKY | COOKSEY TRANSPORTATION COMPANY | | | SCAC4 |
