This is a list of all airline codes . The table lists the IATA airline designators, the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for completeness.
| IATA | ICAO | Airline | Call sign | Country | Comments |
|---|---|---|---|---|---|
| SIQ | National Center for Atmospheric Research | SCIENCE QUEST | United States | ||
| NEJ | Netjets Business Aviation | NET BUSINESS | China | ||
| NHV | NHV Aviation | Ghana | |||
| NHC | Northern Helicopter | NORTHERN | Germany | ||
| DMD | Namdeb Diamond Corporation | DIAMONDJET | Namibia | ||
6N | NIN | Niger Airlines | NIGER AIRLINES | Niger | |
| N5 | FEY | Fly Easy | FLYEASY | India | |
| NUB | Nomad Aviation | VALLETTA | Malta | ||
| NJA | New Japan Aviation | SHIN NIHON | Japan | ||
| ROW | Nor Aviation | ROTORWING | Norway | ||
| NLG | NEL Cargo | NELCARGO | Ivory Coast | ||
| NHG | NHT Linhas Aéreas | HELGA | Brazil | ||
| WAR | NZ Warbirds Association | WARBIRDS | New Zealand | ||
| ANL | Nacoia Lda | AIR NACOIA | Angola | ||
| NHZ | Nada Air Service | NADA AIR | Chad | ||
| BFN | Compangnie Nationale Naganagani | Burkina Faso | |||
| NAH | Nahanni Air Services Ltd | NAHANNI | Canada | ||
| NKL | Nakheel Aviation | NAKHEEL | United Arab Emirates | ||
| MRE | Namibia Commercial Aviation | MED RESCUE | Namibia | ||
| NDF | Namibian Defence Force | NAMIBIAN AIR FORCE | Namibia | ||
| CNJ | Nanjing Airlines | NINGHANG | China | ||
| DV | ACK | Nantucket Airlines | ACK AIR | United States | WAS 9k |
| NYA | Nanyah Aviation | NANYAH | Israel | ||
| NAP | Napier Air Service Inc | NAPIER | United States | ||
| NCM | Nas Air | AIR BANE | Angola | ||
| P9 | Nas Air | Mali | |||
| UE | NAS | Nasair | NASAIRWAYS | Eritrea | |
| NJC | Nashville Jet Charters | NASHVILLE JET | United States | ||
| NCO | Natalco Air Lines | NATALCO | São Tomé and Príncipe | ||
| NTK | National Air Traffic Controllers Association | NATCA | United States | ||
| NSR | National Air Charter | NASAIR | Indonesia | ||
| RFI | National Air Traffic Services | SHERLOCK | United Kingdom | ||
| NAN | National Airlines | NATION AIR | United States | defunct | |
| N4 | NCN | National Airlines | Chile | ||
| N7 | ROK | National Airlines | RED ROCK | United States | defunct |
| NA | NAL | National Airlines | NATIONAL | United States | defunct |
| N8 | NCR | National Air Cargo dba National Airlines | NATIONAL CARGO | United States | |
| 9Y | NAE | National Airways Ethiopia | NATIONAL | Ethiopia | |
| IN | NIH | NAM Air | NAM | Indonesia | |
| KUS | National Airlines | KUSWAG | South Africa | ||
| 9O | National Airways Cameroon | Cameroon | |||
| LFI | National Airways Corporation | AEROMED | South Africa | ||
| GTY | National Aviation Company | Egypt | |||
| TNC | National Aviation Consultants | NATCOM | Canada | ||
| NXT | National Express | NATIONAL FREIGHT | United States | Texas Air Charters | |
| GRD | National Grid plc | GRID | United Kingdom | ||
| JTE | National Jet Express | JETEX | Australia | ||
| AND | National Jet Service | AIR INDIANA | United States | ||
| NC | NJS | National Jet Systems | NATIONAL JET | Australia | |
| NOL | National Overseas Airlines Company | NAT AIRLINE | Egypt | ||
| NLS | Nationale Luchtvaartschool | PANDER | Netherlands | ||
| NAE | Nations Air Express Inc | NATIONS EXPRESS | United States | ||
| CE | NTW | Nationwide Airlines | NATIONWIDE | South Africa | |
| NWZ | Nationwide Airlines (Zambia) | ZAMNAT | Zambia | ||
| EVM | Natural Environment Research Council | SCIENCE | United Kingdom | ||
| NRR | Natureair | NATUREAIR | Costa Rica | ||
| NRK | Naturelink Charter | NATURELINK | South Africa | ||
| NVC | Nav Canada | NAV CAN | Canada | ||
| NAV | Nav Flight Planning | NAV DISPATCH | Czech Republic | ||
| NVP | Navegacao Aérea De Portugal | Portugal | |||
| NAY | Navegación Servicios Aéreos Canarios S.A. | NAYSA | Spain | ||
| IRI | Navid | NAVID | Iran | ||
| NVM | Naviera Mexicana | NAVIERA | Mexico | ||
| NVL | Navigator Airlines | NAVLINES | Armenia | ||
| XNV | Navinc Airlines Services | United States | Tigin Limited | ||
| 1N | Navitaire | United States | |||
| XNS | Navtech System Support | Canada | |||
| NZA | Nayzak Air Transport | Libya | |||
| NEB | State of Nebraska | NEBRASKA | United States | ||
| NEC | Necon Air | NECON AIR | Nepal | ||
| NCG | Nederlandse Kustwacht | NETHERLANDS COASTGUARD | Netherlands | ||
| NFT | Nefteyugansk Aviation Division | NEFTEAVIA | Russia | ||
| NLA | Neiltown Air | NEILTOWN AIR | Canada | ||
| NLC | Nelair Charters | NELAIR | South Africa | ||
| CGE | Nelson Aviation College | COLLEGE | New Zealand | ||
| RA | RNA | Nepal Airlines | ROYAL NEPAL | Nepal | was Royal Nepal Airlines |
| NO | NOS | Neos | MOONFLOWER | Italy | |
| TOX | Neosiam Airways | SKY KINGDOM | Thailand | ||
| NSL | Neric | NERICAIR | United Kingdom | ||
| 1I | EJA | NetJets | EXECJET | United States | |
| NET | Network Aviation Services | NETWORK | Nigeria | ||
| NEZ | New England Air Express | ENGAIR | United States | ||
| EJ | NEA | New England Airlines | NEW ENGLAND | United States | |
| NHT | New Heights 291 | NEWHEIGHTS | South Africa | ||
| NWD | New World Jet Corporation | NEW WORLD | United States | ||
| NYH | New York Helicopter | NEW YORK | United States | ||
| GRY | New York State Police | GRAY RIDER | United States | ||
| KRC | Royal New Zealand Air Force | KIWI RESCUE | New Zealand | ||
| HVA | Newair | HAVEN-AIR | United States | ||
| NLT | Newfoundland Labrador Air Transport | NALAIR | Canada | ||
| 2N | NTJ | NextJet | NEXTJET | Sweden | |
| NXF | Nextflight Aviation | NEXTFLIGHT | United States | ||
| NXS | Nexus Aviation | NEXUS AVIATION | Nigeria | ||
| NIS | Nicaragüense de Aviación | NICA | Nicaragua | ||
| NCN | Nicon Airways | NICON AIRWAYS | Nigeria | Ceased operations 2007 | |
| NGA | Nigeria Airways | NIGERIA | Nigeria | ||
| NGR | Nigerian Air Force | NIGERIAN AIRFORCE | Nigeria | ||
| NGX | Nigerian Global | AIR GLOBAL | Nigeria | ||
| EXT | Nightexpress | EXECUTIVE | Germany | ||
| HG | NLY | Niki | FLYNIKI | Austria | |
| NKV | Nikolaev-Air | AIR NIKOLAEV | Ukraine | Airline of Special Purpose | |
| NSA | Nile Safaris Aviation | NILE SAFARIS | Sudan | ||
| NVA | Nile Valley Aviation Company | Egypt | defunct | ||
| NLW | Nile Wings Aviation Services | NILE WINGS | Sudan | ||
| NBS | Nimbus Aviation | NIMBUS | United Kingdom | ||
| NSR | Nine Star Airways | AIR STAR | Thailand | 2014 [1] | |
| KZ | NCA | Nippon Cargo Airlines | NIPPON CARGO | Japan | |
| NVK | Nizhnevartovskavia | VARTOSKAVIA | Russia | ||
| NOH | No. 32 (The Royal) Squadron | NORTHOLT | United Kingdom | ||
| AKG | No. 84 Squadron RAF | GRIFTER | United Kingdom | ||
| NBL | Nobil Air | NOBIL AIR | Moldova | ||
| DD | NOK | Nok Air | NOK AIR | Thailand | |
| XW | NCT | NokScoot | BIG BIRD | Thailand | |
| NRL | Nolinor Aviation | NOLINOR | Canada | ||
| NMD | Nomad Aviation | NOMAD AIR | Namibia | ||
| OMD | Nomadic Aviation Group LLC | NOMADIC | United States | ||
| NOC | Norcopter | NORCOPTER | Norway | ||
| NEF | Nord-Flyg | NORDEX | Sweden | ||
| 5N | AUL | Nordavia | ARCHANGELSK AIR | Russia | |
| JH | NES | Nordeste Linhas Aéreas Regionais | NORDESTE | Brazil | |
| 6N | NRD | Nordic Regional | NORTH RIDER | Sweden | |
| Y7 | TYA | NordStar | TAIMYR | Russia | |
| NDS | Nordstree (Australia) | Australia | |||
| N4 | NWS | Nordwind Airlines | NORDLAND | Russia | |
| NRT | Norestair | NORESTAIR | Spain | ||
| N5 | Norfolk Air | Norfolk Island | Defunct | ||
| NCF | Norfolk County Flight College | COUNTY | United Kingdom | ||
| FNA | Norlandair | NORLAND | Iceland | ||
| NOA | Norontair | NORONTAIR | Canada | ||
| HMF | Norrlandsflyg | LIFEGUARD SWEDEN | Sweden | ||
| NRX | Norse Air Charter | NORSE AIR | South Africa | ||
| N0 | NBT | Norse Atlantic Airways | LONGSHIP | Norway | |
| NIR | Norsk Flytjeneste | NORSEMAN | Norway | ||
| NOR | Norsk Helikopter | NORSKE | Norway | ||
| DOC | Norsk Luftambulanse | HELIDOC | Norway | ||
| RTV | Nortavia | TIC-TAC | Portugal | ||
| NAI | North Adria Aviation | NORTH-ADRIA | Croatia | ||
| NA | NAO | North American Airlines | NORTH AMERICAN | United States | |
| HMR | North American Charters | HAMMER | Canada | ||
| NAJ | North American Jet Charter Group | JET GROUP | United States | ||
| NAT | North Atlantic Air Inc | MASS AIR | United States | ||
| NFC | North Atlantic Cargo | NORTH ATLANTIC | Norway | ||
| NBN | North British Airlines | TEESAIR | United Kingdom | ||
| NCB | North Caribou Flying Service Ltd | NORTH CARIBOU | Canada | ||
| N/A | N/A | North Coast Air Services Ltd | NORTH COAST | Canada | |
| N9 | North Coast Aviation | Papua New Guinea | |||
| M3 | NFA | North Flying | NORTH FLYING | Denmark | |
| NRC | North Sea Airways | NORTH SEA | Netherlands | ||
| SBX | North Star Air Cargo | SKY BOX | United States | ||
| NRV | North Vancouver Airlines | NORVAN | Canada | ||
| NWW | North West Airlines | HALANT | Australia | ||
| PTO | North West Geomatics | PHOTO | Canada | ||
| NEN | North-East Airlines | NORTHEAST SWAN | Nigeria | ||
| VBG | North-West Air Transport Company - Vyborg | VYBORG AIR | Russia | ||
| HW | NWL | North-Wright Airways | NORTHWRIGHT | Canada | |
| NLL | Northafrican Air Transport | NORTHAFRICAN AIR | Libya | ||
| NFL | Northaire Freight Lines | GREAT LAKES | United States | ||
| NSF | Northamptonshire School of Flying | NORTON | United Kingdom | ||
| NCE | Northcoast Executive Airlines | TOP HAT | United States | ||
| NEE | Northeast Airlines | NORTHEAST | United States | ||
| NPX | Northeast Aviation | NORTHEAST EXPRESS | United States | ||
| NEW | Northeastern Aviation | MEADOW FLIGHT | United States | 2014 [1] | |
| NC | NAC | Northern Air Cargo | YUKON | United States | |
| BYC | Northern Airlines Sanya | BEIYA | China | ||
| NDA | Northern Airways | NORTHERN DAKOTA | United States | ||
| CMU | Northern Aviation Service | LANNA AIR | Thailand | ||
| U7 | Northern Dene Airways | Canada | |||
| NEX | Northern Executive Aviation | NEATAX | United Kingdom | ||
| NIC | Northern Illinois Commuter | ILLINOIS COMMUTER | United States | ||
| NTX | Northern Jet Management | NORTAX | United States | ||
| 7H | RVF | Northern Pacific Airways | —Raven Flight | United States | |
| NTA | Northern Thunderbird Air | THUNDERBIRD | Canada | ||
| KOE | Northland Aviation | KOKEE | United States | ||
| NSS | Northstar Aviation | NORTHSTAR | United States | ||
| NHL | Northumbria Helicopters | NORTHUMBRIA | United Kingdom | ||
| NAL | Northway Aviation Ltd | NORTHWAY | Canada | ||
| NWE | Northwest Aero Associates | United States | |||
| NW | NWA | Northwest Airlines | NORTHWEST | United States | defunct merged with Delta Air Lines |
| FY | NWR | Northwest Regional Airlines | Australia | ||
| NWT | Northwest Territorial Airways | TERRITORIAL | Canada | ||
| J3 | PLR | Northwestern Air | POLARIS | Canada | |
| NWN | Northwinds Northern | NORTHWINDS | Canada | ||
| NAM | Nortland Air Manitoba | MANITOBA | Canada | ||
| D8* | IBK | Norwegian Air International | NORTRANS | Ireland | subsidiary of Norwegian Air Shuttle (Ceased operations 2021) |
| DY | NOZ | Norwegian Air Shuttle | NORDIC | Norway | |
| DI | NRS | Norwegian Air UK | REDNOSE* | United Kingdom | subsidiary of Norwegian Air Shuttle (Ceased operations 2021) [2] |
| DN | NAA | Norwegian Air Argentina | NORUEGA | Argentina | subsidiary of Norwegian Air Shuttle (Ceased operations 2019) |
| DU | NLH | Norwegian Long Haul | NORSTAR | Norway | subsidiary of Norwegian Air Shuttle (Ceased operations 2021) [3] |
| DH | NAN | Norwegian Air Norway | NORSHIP | Norway | subsidiary of Norwegian Air Shuttle |
| D8 | NSZ | Norwegian Air Sweden | REDNOSE | Sweden | subsidiary of Norwegian Air Shuttle |
| TFN | Norwegian Aviation College | SPIRIT | Norway | ||
| XNT | Notams International | United States | |||
| BJ | LBT | Nouvel Air Tunisie | NOUVELAIR | Tunisia | |
| O9 | NOV | Nova Airways | NOVANILE | Sudan | |
| PTR | Nova Scotia Department of Lands and Forests | PATROL | Canada | ||
| 1I | NVR | Novair | NAVIGATOR | Sweden | |
| VQ | NVQ | Novo Air | NOVO AIR | Bangladesh | |
| NVG | Novgorod Air Enterprise | SADKO AVIA | Russia | ||
| NSP | Novosibirsk Aircraft Repairing Plant | NARPAIR | Russia | ||
| NBE | Novosibirsk Aviaenterprise | NAKAIR | Russia | ||
| NPO | Novosibirsk Aviation Production Association | NOVSIB | Russia | ||
| NOY | Noy Aviation | NOY AVIATION | Israel | ||
| N6 | ACQ | Nuevo Continente | AERO CONTINENTE | Peru | Operating license revoked by Chile 10/06/2002; Ceased operations 2005; Former name: Aero Continente |
| NHR | Nuevo Horizonte Internacional | NUEVO HORIZONTE | Mexico | ||
| NUN | Nunasi-Central Airlines | NUNASI | Canada | ||
| NIN | Nurman Avia Indopura | NURVINDO | Indonesia | ||
| NYS | Nyasa Express | NYASA | Malawi | ||
| 1I | NJE | NetJets Europe | FRACTION | Portugal |