National Air Traffic Services | | Velká Británie | | RFI |
National Airlines | | Spojené státy | | NAN |
National Airways Cameroon | | Kamerun | 9O | |
National Airways Corporation | | Jižní Afrika | | LFI |
National Aviation Company | | Egypt | | GTY |
National Aviation Consultants | | Kanada | | TNC |
National Express | | Spojené státy | | NXT |
National Grid | | Velká Británie | | GRD |
National Jet Express | | Austrálie | | JTE |
National Jet Service | | Spojené státy | | AND |
National Jet Systems | | Austrálie | NC | NJS |
National Oceanic and Atmospheric Administration | | Spojené státy | | NAA |
National Overseas Airlines Company | | Egypt | | NOL |
Nationale Luchtvaartschool | | Nizozemsko | | NLS |
Nations Air Express Inc | | Spojené státy | | NAE |
Nationwide Airlines | | Jižní Afrika | CE | NTW |
Nationwide Airlines (Zambia) | | Zambie | | NWZ |
Natural Environment Research Council | | Velká Británie | | EVM |
Natureair | | Kostarika | | NRR |
Naturelink Charter | | Jižní Afrika | | NRK |