| Carrier Code | Carrier Name |
| SNNM | SIENNA MARITIME INCORPORATED |
| SNNU | SUNN CONTAINER LEASING CORP |
| SNRE | SUNRISE SHIPPING INC |
| SNRU | SANARA |
| SNSG | SUNRISE SHIPPING AGENCY INC |
| SNSU | SLOMAN NEPTUNE SCHIFFAHRT AG |
| SNTU | SINOTRANS-CHINA NATIONAL FOREIGN TRADE TRANSPORTATION CORPORATION |
| SNUA | SHINOUSSA SHIPPING CORPORATION |
| SNUL | SOCIEDAD NAVIERA ULTRAGAS LTDA |
| SNWU | SOCIETE NATIONALE DES WAGONS-RESERVOIRS |
| SNZN | SIDERMAR DI NAVIGAZIONE S P A |
| SNZU | SHIPPING CORP OF NEW ZEALAND, THE |
| SOBG | SOUTHERN BARGE LINE CORPORATION |
| SOCU | SOCIETA ITALIANA CONTAINERS SPA |
| SODK | SOUTHERN DOCK COMPANY |
