| ICAO | IATA | NAME |
|---|
| ANL | | Nacoia Lda |
| NHZ | | Nada Air Service |
| IRG | | Naft Air Lines |
| NAH | | Nahanni Air Services Ltd |
| NKL | | Nakheel Aviation |
| MRE | | Namibia Commerical Aviation |
| NDF | | Namibian Defence Force |
| CNJ | | Nanjing Airlines |
| ACK | DV | Nantucket Airlines |
| NYA | | Nanyah Aviation |
| NAP | | Napier Air Service Inc |
| P9 | Nas Air |
| | nas air |
| NCM | | Nas Air |
| NAS | UE | Nasair |
| NJC | | Nashville Jet Charters |
| NCO | | Natalco Air Lines |
| NTK | | Natioanl Air Traffic Controllers Association |
| NSR | | National Air Charter |
| RFI | | National Air Traffic Services |
| KUS | | National Airlines |
| NAL | NA | National Airlines |
| ROK | N7 | National Airlines |
| NCN | N4 | National Airlines |
| NAN | | National Airlines |
| 9O | National Airways Cameroon |
| LFI | | National Airways Corporation |
| GTY | | National Aviation Company |
| TNC | | National Aviation Consultants |
| NXT | | National Express |
| GRD | | National Grid |
| JTE | | National Jet Express |
| AND | | National Jet Service |
| NJS | NC | National Jet Systems |
| NAA | | National Oceanic and Atmospheric Administration |
| NOL | | National Overseas Airlines Company |
| NLS | | Nationale Luchtvaartschool |
| NAE | | Nations Air Express Inc |
| NTW | CE | Nationwide Airlines |
| NWZ | | Nationwide Airlines (Zambia) |
| EVM | | Natural Environment Research Council |
| NRR | | Natureair |
| NRK | | Naturelink Charter |
| RON | ON | Nauru Air Corporation |
| NVC | | NAV CANADA |
| NAV | | Nav Flight Planning |
| NVP | | Navegacao Aerea De Portugal |
| NAY | | Navegacion Servicios Aereos Canarios SA |
| IRI | | Navid |
| NVM | | Naviera Mexicana |
| NVL | | Navigator Airlines |
| XNV | | Navinc Airlines Services |
| 1N | Navitaire |
| XNS | | Navtech System Support |
| NZA | | Nayzak Air Transport |
| NEC | | Necon Air |
| NCG | | Nederlandse Kustwacht |
| NFT | | Nefteyugansk Aviation Division |
| NLA | | Neiltown Air |
| NLG | | NEL Cargo |
| NLC | | Nelair Charters |
| CGE | | Nelson Aviation College |
| NOS | NO | Neos |
| TOX | | Neosiam Airways |
| RNA | RA | Nepal Airlines |
| NSL | | Neric |
| EJA | 1I | NetJets |
| NET | | Network Aviation Services |
| NEZ | | New England Air Express |
| NEA | EJ | New England Airlines |
| NHT | | New Heights 291 |
| NWD | | New World Jet Corporation |
| NYH | | New York Helicopter |
| GRY | | New York State Police |
| KRC | | New Zealand Air Defence Force |
| HVA | | Newair |
| NLT | | Newfoundland Labrador Air Transport |
| NXF | | Nextflight Aviation |
| NTJ | | NextJet |
| NXS | | Nexus Aviation |
| NHG | | NHT Lineas Aéreas |
| NIS | | Nicaraguense De Aviacion |
| NCN | | Nicon Airways |
| NGA | | Nigeria Airways |
| NGR | | Nigerian Air Force |
| NGX | | Nigerian Global |
| EXT | | Night Express |
| NLY | HG | Niki |
| NKV | | Nikolaev-Air |
| NSA | | Nile Safaris Aviation |
| NVA | | Nile Valley Aviation Company |
| NLW | | Nile Wings Aviation Services |
| NBS | | Nimbus Aviation |
| NCA | KZ | Nippon Cargo Airlines |
| NVK | | Nizhnevartovskavia |
| WYT | | No 1 Elementary Flying Training School |
| NOH | | No. 32 (The Royal) Squadron RAF |
| NBL | | Nobil Air |
| NOK | DD | Nok Air |
| NRL | | Nolinor Aviation |
| NMD | | Nomad Aviation |
| NOC | | Norcopter |
| NEF | | Nord-Flyg |
| NES | JH | Nordeste Linhas Aereas Regionais |
| NRD | 6N | Nordic Regional |
| NVD | | Nordic Solutions |
| NDS | | Nordstree (Australia) |
| NRT | | Norestair |
| NCF | | Norfolk County Flight College |
| NOA | | Norontair |
| HMF | | Norrlandsflyg |
| NRX | | Norse Air Charter |
| NIR | | Norsk Flyrjeneste |
| NOR | | Norsk Helikopter |
| DOC | | Norsk Luftambulanse |
| RTV | | Nortávia |
| NAI | | North Adria Aviation |
| NTM | | North American Airlines |
| HMR | | North American Charters |
| NAJ | | North American Jet Charter Group |
| NAT | | North Atlantic Air Inc |
| NFC | | North Atlantic Cargo |
| NBN | | North British Airlines |
| NCB | | North Caribou Flying Service Ltd |
| NCC | | North Coast Air Services Ltd |
| N9 | North Coast Aviation |
| NFA | M3 | North Flying |
| NRC | | North Sea Airways |
| SBX | | North Star Air Cargo |
| NRV | | North Vancouver Airlines |
| NWW | | North West Airlines |
| PTO | | North West Geomatics |
| NEN | | North-East Airlines |
| VBG | | North-West Air Transport Company - Vyborg |
| NWL | HW | North-Wright Airways |
| NLL | | Northafrican Air Transport |
| NFL | | Northaire Feight Lines |
| NSF | | Northamptonshire School of Flying |
| NCE | | Northcoast Executive Airlines |
| NEE | | Northeast Airlines |
| NPX | | Northeast Aviation |
| NAC | NC | Northern Air Cargo |
| BYC | | Northern Airlines Sanya |
| NDA | | Northern Airways |
| CMU | | Northern Aviation Service |
| U7 | Northern Dene Airways |
| NEX | | Northern Executive Aviation |
| NIC | | Northern Illinois Commuter |
| NTX | | Northern Jet Management |
| NTA | | Northern Thunderbird Air |
| KOE | | Northland Aviation |
| NSS | | Northstar Aviation |
| NHL | | Northumbria Helicopters |
| NAL | | Northway Aviation Ltd |
| NWE | | Northwest Aero Associates |
| NWA | NW | Northwest Airlines |
| NWR | FY | Northwest Regional Airlines |
| NWT | | Northwest Territorial Airways |
| PLR | J3 | Northwestern Air |
| NWN | | Northwinds Northern |
| NWO | | Northwood Headquarters (RAF |
| NAM | | Nortland Air Manitoba |
| NAX | DY | Norwegian Air Shuttle |
| TFN | | Norwegian Aviation College |
| XNT | | Notams International |
| LBT | BJ | Nouvel Air Tunisie |
| NOV | M4 | Nova Airline |
| PTR | | Nova Scotia Department of Lands and Forests |
| NVR | 1I | Novair |
| NVG | | Novogorod Air Enterprise |
| NSP | | Novosibirsk Aircraft Repairing Plant |
| NBE | | Novosibirsk Aviaenterprise |
| NPO | | Novosibirsk Aviation Production Association |
| NOY | | Noy Aviation |
| ACQ | N6 | Nuevo Continente |
| NHR | | Nuevo Horizonte Internacional |
| NUN | | Nunasi-Central Airlines |
| NIN | | Nurman Avia Indopura |
| NYS | | Nyasa Express |
| WAR | | NZ Warbirds Association |
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