| Carrier Code | Carrier Name |
| CLIW | COLUMBUS LINES INC |
| CLKU | CONTAINERLINK LIMITED |
| CLLN | CALLANAN MARINE CORP |
| CLMU | COMPAGNIE ALGERO-LIBYENNE DE TRANSPORT MARITIME (CLATRAM) |
| CLNQ | CLEMENTINA SHIPPING CO LTD |
| CLNU | CONCORDIA LINE A S |
| CLOU | CONTAINERS INC |
| CLPU | CLARENDON AND PITTSFORD RAILROAD |
| CLPW | CLIPPER CRUISE LINE INC |
| CLQM | CALUMET MARINE TOWING CORP |
| CLRU | CONCORDIA LINE A/S |
| CLSU | CONTAINER LEASING SERVICES |
| CLTU | COING TAINER FONTAINE |
| CLVP | CLEVEDON TRANSPORTATION COMPANY |
| CLWP | CHASE LEAVITT & CO |
