| 1 | CLN | Barnes Olson Aeroleasing Ltd. | Callsign: Seeline, | GB | AVCODES |
| 2 | CLN | Catlin Aviation Co. | Callsign: Catlin, | USA | AVCODES |
| 3 | CLN | Cloepatra Aviation | Callsign: Cloepatra, | ET | AVCODES |
| 4 | CLN | Barnes Olsen Aeroleasing | | | ICAO1 |
| 5 | CLNA | Carolina Coastal Ry. Inc. | added 7/1989; 1/1994-7/2000; eliminated 10/2004; 7/2005 | | NAKINA |
| 6 | CLNA | Carolina Coastal Ry. Inc. | added 7/89; 1/94-7/2000 | | NRHS |
| 7 | CLNA | CAROLINA COASTAL RAILWAY, INC. | | | PWRC |
| 8 | CLNA | Carolina Coastal Railway | | | RSRV |
| 9 | CLNA | CAROLINA COASTAL RAILWAY INC | | | SCAC3 |
| 10 | CLNB | COLLINS BROTHERS INDUSTRIES INC | | | SCAC3 |
| 11 | CLNB | COLLINS BROTHERS INDUSTRIES INC | | | SCAC4 |
| 12 | CLNC | COLLINS CRANE & RIGGING SERVICE, IN | | | SCAC3 |
| 13 | CLND | CARGO LIFT & DRAYAGE INC | | | SCAC3 |
| 14 | CLNE | C-LINE EXPRESS | | | SCAC3 |
| 15 | CLNE | C-LINE EXPRESS | | | SCAC4 |
| 16 | CLNG | CONLEE MOVING & STORAGE INC | | | SCAC3 |
| 17 | CLNG | CONLEE-GARRETT MOVING & STORAGE | | | SCAC4 |
| 18 | CLNH | COLLINS, T E TRUCKING COMPANY | | | SCAC3 |
| 19 | CLNH | COASTLINE CHICKS | | | SCAC4 |
| 20 | CLNI | C-LINE, INC | | | SCAC3 |
| 21 | CLNI | C-LINE INC | | | SCAC4 |
| 22 | CLNJ | COLLINGWOOD, JAMES T | | | SCAC3 |
| 23 | CLNJ | CONTAINER LIFTERS NW LLC | | | SCAC4 |
| 24 | CLNK | COLONIAL TRUCKING INC | | | SCAC3 |
| 25 | CLNK | COLONIAL TRUCKING INC | | | SCAC4 |
| 26 | CLNL | CLAY NAVIGATION LTD | | | SCAC3 |
| 27 | CLNL | CALDREN CORP LTD | | | SCAC4 |
| 28 | CLNM | COLONY MOVING & STORAGE INC | | | SCAC3 |
| 29 | CLNM | COLONY MOVING & STORAGE INC | | | SCAC4 |
| 30 | CLNN | CLINE TRANSFER | | | SCAC3 |
| 31 | CLNO | CELANESE CORP | | | SCAC3 |
| 32 | CLNO | CASILLAS LEON, ANTONIO | | | SCAC4 |
| 33 | CLNP | CARLAND INC | | | SCAC3 |
| 34 | CLNQ | CLEMENTINA SHIPPING CO., LTD. | | | SCAC3 |
| 35 | CLNQ | C & L LOGISTICS INC | | | SCAC4 |
| 36 | CLNR | CLASSIC TRANSPORT | | | SCAC3 |
| 37 | CLNR | COUNTY LINE TRANSPORT INC | | | SCAC4 |
| 38 | CLNS | COLLINS INTERNATIONAL INC | | | SCAC4 |
| 39 | CLNT | COLLINS TRUCK LINE INC | | | SCAC3 |
| 40 | CLNT | CONTAINER LINE TRANSPORT INC | | | SCAC4 |
| 41 | CLNU | CONCORDIA LINE A.S. | | | SCAC3 |
| 42 | CLNU | CONTENEMAR SA | | | SCAC4 |
| 43 | CLNW | COLLINS, WILLIAM | | | SCAC3 |
| 44 | CLNX | C.F. Claussen & Sons, Inc. | 7/1935-1/1950 | | NAKINA |
| 45 | CLNX | C.F. Claussen & Sons, Inc. | Apr-38 | | NRHS |
| 46 | CLNX | C. F. CLAUSSEN & SONS, INC. | | | PWRC |
| 47 | CLNY | C L C COMPANY | | | SCAC3 |
| 48 | CLNY | CLANCYS TRANSFER & STORAGE INC | | | SCAC4 |
