| Carrier Code | Carrier Name |
| 31BN | SHANGHAI SHIMONOSEKI FERRY CO.,LTD. |
| 31BO | DOKAI MARINE SYSTEMS LTD. |
| 31BP | TSUJIOKA KAIUN YUGENGAUSYA |
| 31BQ | EHIME FISHERIES RESERCH CENTER |
| 31BR | PRINCE KAIUN CO. KAWASAKI BRANCH |
| 31BS | EKIZENCO.,LTD HONSYA |
| 31BT | KAEI SHOKAI CO.,LTD. |
| 31BU | KANMON KAIKYO FERRY CO.HONSHA |
| 31BV | SOUEI KAIUN CO.,LTD. HONSHA |
| 31BW | SHIMAZU SHOJI CO.LTD SHIMONOSEKI |
| 31BX | MINAMI NIHON KISEN OOSAKA |
| 31BY | NIHON TUG-BOAT CO. MARINE |
| 31BZ | MIRAIJET CO.,LTD FUKUOKA |
| 31CA | WESTMARINE |
| 31CB | RYUKYUKAIUN KAISYA TOKYOSHITEN |
