| N4 | NCN | National Airlines (Chile) | |
| N6 | ACQ | 929 | Aero Continente |
| N7 | JEV | 504 | Lagun Air |
| N8 | CRK | 851 | Hong Kong Airlines Ltd |
| NB | SNB | 194 | Sterling |
| NC | NJS | National Jet Systems | |
| NC | NAC | 345 | Northern Air Cargo |
| NC | GTY | National Aviation Company | |
| ND | 159 | Airlink | |
| NF | AVN | 218 | Air Vanuatu |
| NG | LDA | 231 | Lauda Air |
| NH | ANA | 205 | All Nippon Airways |
| NI | PGA | 685 | Portugália Airlines |
| NK | SWG | 487 | Spirit Airlines |
| NL | SAI | 740 | Shaheen Air International |
| NM | NZM | 445 | Mount Cook |
| NM | DRI | Air Madrid | |
| NN | MTQ | 606 | Air Martinique |
| NN | MOV | Vim Airlines | |
| NP | HLA | H C Airlines | |
| NQ | DVU | 819 | Orbi Georgian Airlines |
| NR | PIR | Pamir Airways | |
| NT | IBB | 474 | Binter Canarias |
| NU | JTA | 353 | Japan TransOcean Air |
| NU | NIG | Aerocontractors | |
| NV | NWT | 668 | NWT Air |
| NV | Nakanihon Airlines | ||
| NW | NWA | 012 | Northwest Airlines |
| NX | NXA | 151 | Nationair Canada |
| NX | AMU | 675 | Air Macau |
| NY | FNA | 882 | Air Iceland |
| NZ | ANZ | 086 | Air New Zealand |