| Carrier Code | Carrier Name |
| NOKE | NEW ORLEANS TANKER CORPORATION |
| NOKU | NOVOKTAN GMBH MINERALOL-ADDITIVE |
| NOLU | NEPTUNE ORIENT LINES LTD |
| NOMA | NOMAS WORLD TRADING COMPANY INC |
| NOPU | NOPAL LINES |
| NORD | NORDIC DISTRIBUTING CO |
| NORG | NORTHERN SHIPPING COMPANY |
| NOSU | NEPTUNE ORIENT LINES LTD |
| NOVH | NOVOSHIP (UK) LTD |
| NOWU | NOWSCO WELL SERVICE |
| NOXU | NATIONAL OXYGEN |
| NPCL | NORTH PACIFIC CARRIERS LIMITED |
| NPCN | NEWPORT CONTAINER LINE |
| NPLU | NAURU PACIFIC LINE |
| NPMC | NEPTUNE MARITIME CO OF MONROVIA |
