 | This article needs additional citations for verification .(August 2015) |
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 |
|---|---|---|---|---|---|
| GBT | A-Jet Aviation Aircraft Management | GLOBETROTTER | Austria | ||
| AJR | A-Jet Aviation Company | JET MONGOLIA | Mongolia | ||
| SFM | A-Safar Air Services | AIR SAFAR | Nigeria | ||
| AJJ | A2 Jet Leasing | ATLANTIC JET | United States | ||
| XXV | AASANA | Bolivia | |||
| BBE | Ababeel Aviation | BABEL AIR | Sudan | ||
| 1B | Abacus International | Singapore | Computer reservation system | ||
| BJ | ABJ | Abaeté Linhas Aéreas | ABAETE | Brazil | defunct |
| NKP | Abakan Air | ABAKAN AIR | Russia | 2014 [1] | |
| RL | ABG | Abakan-Avia | ROYAL FLIGHT | Russia | |
| ABE | Aban Air | ABAN | Iran | Former IATA code: K5 | |
| MRP | Abas | ABAS | Czech Republic | ||
| AHU | ABC Air Hungary | ABC HUNGARY | Hungary | defunct | |
| FTY | ABC Bedarfsflug | FLY TYROL | Austria | ||
| W9 | AAB | Abelag Aviation | ABG | Belgium | defunct |
| BDV | Aberdair Aviation | ABERDAV | Kenya | ||
| ROH | Aberdair Aviation Ghana | Ghana | |||
| ADJ | Abidjan Air Cargo | ABICAR | Côte d'Ivoire | defunct | |
| ABP | ABS Jets | BAIR | Czech Republic | Named changed from Aba Air | |
| M3 | TUS | ABSA Cargo | Turismo | Brazil | |
| TTN | Absolute Flight Services | TITANIUM | South Africa | ||
| GB | ABX | ABX Air | ABEX | United States | August 15, 2003 Air operations of former Airborne Express |
| IAE | AC Insat-Aero | Russia | defunct | ||
| NCL | ACA (Ancargo Air) | ANCARGO AIR | Angola | defunct | |
| ACD | Academy Airlines | ACADEMY | United States | ||
| ZA | CYD | AccessAir | CYCLONE | United States | defunct |
| Ace Air | ACE TAXI | South Korea | defunct as of September 2015 | ||
| CFM | ACEF | ACEF | Portugal | Transportes Aéreos e Cargas, code no longer allocated | |
| ARO | Acero Taxi | ACERO | Mexico | ||
| VX | AES | ACES Colombia | ACES | Colombia | defunct |
| BVR | ACM Air Charter | BAVARIAN | Germany | ||
| BJT | ACM Aviation | BAY JET | United States | ||
| CRV | Acropolis Aviation | ACROPOLIS | United Kingdom | ||
| ORS | Action Air | AVIATION SERVICE | Italy | ICAO Code no longer allocated, defunct | |
| AXQ | Action Airlines (Action Air Charter) | ACTION AIR | United States | ||
| AVR | Active Aero Charter, Inc. | ACTIVE AERO | United States | ||
| RRM | Acvila Air-Romanian Carrier | AIR ROMANIA | Romania | defunct | |
| ADC | AD Astra Executive Charter | AD ASTRA | Poland | ||
| VUE | AD Aviation | FLIGHTVUE | United Kingdom | ||
| ADE | Ada Air | ADA AIR | Albania | defunct, former IATA code: ZY | |
| KI | DHI | Adam Air | ADAM SKY | Indonesia | defunct |
| Z7* | ADK | ADC Airlines | ADCO | Nigeria | defunct; former name: Aviation Development Company |
| ADW | ADC Airways | Lebanon | defunct | ||
| DSC | Addis Air Cargo Services | ADDIS CARGO | Ethiopia | ||
| DDS | Addis Airlines | ADDIS LINE | Ethiopia | DEFUNCT | |
| ADF | Ade, Aviación Deportiva | ADE AVIACION | Spain | ||
| TEC | ADI Shuttle Group | TECHJET | United States | ||
| SWH | Adler Aviation | SHOCKWAVE | Canada | ||
| JP | ADR | Adria Airways | ADRIA | Slovenia | defunct as of September 2019 |
| DRO | Adro Servicios Aereos | ADRO SERVICIOS | Mexico | ||
| ADV | Advance Air Charters | ADVANCE | Canada | defunct | |
| AXX | Advance Air Luftfahrtgesellschaft | SKY SHUTTLE | Germany | ||
| AAX | Advance Aviation | ADVANCE AVIATION | Thailand | ||
| XTJ | Advance Aviation Services | United States | |||
| 4G* | Advance Leasing Company | United States | |||
| AN | WSN | Advanced Air | WINGSPAN | United States | 2015 [2] |
| ADD | Advanced Air Co. | Japan | ICAO Code no longer allocated | ||
| ADV | Advanced Flight Training | ADVANCED | United Kingdom | ||
| RDD | Adygea Airlines | ADLINES | Russia | defunct | |
| DVN | Adventia | Spain | |||
| EBS | AEG Aviation Services | United States | |||
| A3 | AEE | Aegean Airlines | AEGEAN | Greece | |
| ALS | Aeralp | AERALP | France | ||
| AEF | Aerea | Spain | |||
| DRD | Aereo Dorado | AEREO DORADO | Mexico | ||
| FUT | Aereo Futuro | AEREO FUTURO | Mexico | ||
| MMG | Aereo Ruta Maya | RUTA MAYA | Guatemala | ||
| AGI | Aereo Transportes Los Angeles de America | ANGELES AMERICA | Mexico | ||
| WWG | Aereo WWG | AERO-W | Mexico | ||
| AED | Aernord | Aernspa | Italy | defunct | |
| AKR | Aero Clinker | AERO CLINKER | Mexico | ||
| RRB | Aero Club de Castellon | Spain | |||
| 9D | CND | Aero Continente Dominicana | CONDOMINICANA | Dominican Republic | defunct |
| ARP | Aero Corporate | IVORYCORP | Côte d'Ivoire | ||
| ML | AEK | Aero Costa Rica | ACORISA | Costa Rica | defunct |
| EPU | Aero Elite Acapulco | ELITACAPULCO | Mexico | ||
| XPN | Aero Express | Niger | |||
| AJP | Aero Jets Corporativos | AEROJETS | Mexico | ||
| VF | TKJ | AJet | ANATOLIAN | Turkey | formerly AnadoluJet |
| OWN | Aero Owen | AERO OWEN | Mexico | 2014 [1] | |
| GHM | Aero Service Bolivia | Bolivia | |||
| GLM | Aero Services Mali | GLOBAL MALI | Mali | ||
| GUE | Aero Servicio Guerrero | AERO GUERRERO | Mexico | ||
| ASR | Aero Sotravia | SOTRAVIA | France | 2014 [1] | |
| ABA | Aero-Beta | AEROBETA | Germany | ||
| DW | UCR | Aero-Charter Ukraine | CHARTER UKRAINE | Ukraine | |
| EAP | Aero-Pyrenees | AERO-PYRENEES | France | ||
| AJH | Aeroaljarafe | ALJARAFE | Spain | ||
| AOB | Aerocaribe Coro | CARIBE CORO | Venezuela | ||
| ACR | Aerocenter, Escuela de Formación de Pilotos Privados de Avión | AEROCENTER | Spain | ||
| ERC | Aerocharter | Guatemala | defunct | ||
| BSO | Aeroclub Barcelona-Sabadell | Spain | |||
| NVA | Aeroclub de Albacete | Spain | |||
| LUE | Aeroclub de Alicante | Spain | |||
| MLL | Aeroclub de Mallorca | MALLORCA | Spain | ||
| AVX | Aeroclub de Vitoria | Spain | |||
| CTD | Aerocorporativos | AEROCORPORATIVOS | Mexico | ||
| RRO | Aerocredo | Russia | |||
| DVI | Aerodavinci | AERO DAVINCI | Mexico | ||
| FAQ | Aerofaq | Ecuador | |||
| SU | AFL | Aeroflot | AEROFLOT | Russia | |
| P3 | PLS | Aeroflot-Plus | AEROPLUS | Russia | |
| AEG | Aerofumigaciones Sam | FUMIGACIONES SAM | Chile | defunct | |
| AGQ | Aerogala | GALASERVICE | Chile | defunct | |
| ARH | Aerohelicopteros | AEROHELCA | Venezuela | 2014 [1] | |
| BJU | AeroJet | JET EXPRESS | Angola | ||
| ARJ | Aerojet de Costa Rica, S.A. | Costa Rica | |||
| LFT | Aerolift Company | LIFTCO | Sierra Leone | defunct | |
| LIN | Aerolimousine | AEROLIMOUSINE | Russia | ||
| PCP | Aerolínea Principal Chile | PRINCIPAL | Chile | ||
| ALT | Aerolíneas Centrales | AERLINEAS CENTRALES | Mexico | ||
| AHL | Aerolíneas Hidalgo | HIDALGO | Mexico | ||
| APR | Aerolíneas Primordiales | AEROPERLAS | Mexico | ||
| LDL | Aerologic | Russia | |||
| VSC | Aeronautic de Los Pirineos | Spain | |||
| PSE | Aeroservicio Sipse | SIPSE | Mexico | ||
| PSL | Aeroservicios Corporativos De San Luis | CORSAN | Mexico | ||
| EAE | Aeroservicios Ecuatorianos | AECA | Ecuador | ||
| AES | Aerosur Paraguay | AEROPARAGUAY | Paraguay | ||
| BTS | Aerotaxis Albatros | AEROLINEAS ALBATROS | Mexico | ||
| PRI | Aerotransportes Privados | AEROPRIV | Mexico | ICAO code in use by another company, call sign no longer allocated | |
| PVA | Aerotransportes Privados | TRANSPRIVADO | Mexico | ||
| VMX | Aeroventas de Mexico | VENTA | Mexico | 2014 [1] | |
| ABU | Aerovías Bueno | AEROBUENO | Colombia | defunct | |
| ACB | African Cargo Services | AFRICARGO | Kenya | ||
| AAP | Arabasco Air Services | ARABASCO | Saudi Arabia | ||
| AAR | Americ Air | PATRIOT | United States | defunct | |
| AAS | Airtransservice | Aviaservice | Russia | defunct | |
| AAS | Austrian Air Services | AIR SERVICES | Austria | defunct | |
| OB | AAT | Austrian Airtransport | AUSTRIAN CHARTER | Austria | defunct; former IATA code: U8, OG; former ICAO code: AUC |
| AAV | Aly Aviation | United Kingdom | defunct; former ICAO code: AAY | ||
| AAW | Austin Airways | AUSTIN | Canada | defunct | |
| SM | AAW | Allied Airways | United Kingdom | defunct, taken over by British European Airways which went on to form British Airways. | |
| AAW | Almeta Air | ALMETA AIR | Austria | defunct | |
| KJ | AAZ | Asian Air | Kyrgyzstan | ||
| ABT | Ambeo | AMBITION | United Kingdom | ||
| ABE | Arberia Airlines | ARBERIA AIRLINES | Albania | defunct | |
| ACE | Air Charter Express | Ghana | |||
| YE | ACQ | Aryan Cargo Express | India | ||
| ACS | Aircraft Sales and Services | AIRCRAFT SALES | Pakistan | ||
| ABS | Air Central | AIR CENTRAL | United States | defunct | |
| ADT | Arrendaminetos y Transportes Turisticos | ARRENDA-TRANS | Mexico | ||
| ADZ | Avio Delta | Bulgaria | |||
| AED | Aie Experience Flight | AIE EXPERIENCE | United Kingdom | defunct | |
| VJ | AFF | Africa Airways | AFRIWAYS | Benin | defunct |
| AFM | AEROSPEED FORMATION ET MAINTENANCE | EPIC AIR | France | ||
| LBR | Air Costa (Lepl Project Limited) | India | defunct | ||
| QH | FLA | Air Florida | PALM | United States | relaunching |
| 3O | MAC | Air Arabia Maroc | ARABIA MAROC | Morocco | This ICAO designator was previously used by Malta Air Charter |
| MRY | Air Marine | AIR MARINE | France | ||
| PNK | Air Pink | AIRPINK | Serbia | ||
| PXG | Aitheras Aviation Group | United States | |||
| AFN | African International Airlines | SIMBA | Lesotho | ||
| HD | ADO | AIRDO | AIR DO | Japan | |
| ACC | Airspeed Charter | Jamaica | 2014 [1] | ||
| PNX | AIS Airlines | SPINNER | Netherlands | ||
| AVD | Álamo Aviación, S.L. | ALAMO | Spain | ||
| FSY | Algonquin Airlink | FROSTY | Canada | 2014 [1] | |
| TTX | Alliance Air Charters | TWISTER | United States | ||
| UJ | LMU | AlMasria Universal Airlines | ALMASRIA | Egypt | |
| ALN | Alpha Jet, S.R.O. | TOLEMAC | Slovakia | 2014 [1] | |
| APN | Alpine Airlines | AIR ALPES | France | ||
| BAH | The Amiri Flight | BAHRAIN | Bahrain | ||
| A2 | AWG | Animawings | ANIMA WINGS | Romania | |
| TLB | Atlantique Air Assistance | TRIPLE-A | France | ||
| UJX | Atlas Ukraine Airlines | ATLAS UKRAINE | Ukraine | 2014 [1] | |
| AGM | Aviation West Charters | ANGEL MED | United States | 2015 [3] | |
| X9 | NVD | Avion Express | NORDVIND | Lithuania | Name changed from Nordic Solutions Air |
| AZB | Azamat | TUMARA | Kazakhstan | defunct | |
| 3S* | AEN | Aeroland Airways | AEROLAND | Greece | defunct, ICAO code no longer allocated |
| NGF | Air Charity Network | ANGEL FLIGHT | United States | Re-allocated in 2014 was used by Angel Flight America [4] | |
| WFT | Aircharters Worldwide | WORLD FLIGHT | United States | Allocated 2014 [5] | |
| JU | ASL | Air Serbia | AIR SERBIA | Serbia | Name changed from Aeroput to JAT Yugoslav Airlines to Jat Airways to Air Serbia. Formerly used JAT as ICAO code. |
| QH | LYN | Air Kyrgyzstan | ALTYN AVIA | Kyrgyzstan | Name changed from Kyrgyzstan |
XK | CCM | Air Corsica | CORSICA | France | |
| AHS | AHS Air International | HIGH SKY | Pakistan | ||
| ROO | Aero Roa | AERO ROA | Mexico | ||
| AWF | Aeroforward | United States | |||
| SUP | Aeronautical Charters | SUN SPEED | United States | ||
| PSO | Aerotaxis Pegaso | AEROPEGASO | Mexico | ||
| EI | EIN | Aer Lingus | SHAMROCK | Ireland | |
| EG | EUK | Aer Lingus UK | GREEN FLIGHT | United Kingdom | |
| VLB | Air Volta | VOLTA | Bulgaria | ||
| FCJ | AirSprint US | FRACJET | United States | Previously used code "HAB" | |
| TEW | Airteam Charter | TEAMWORK | South Africa | ||
| STT | Alpha Star Charter | STAR CHARTER | Saudi Arabia | ||
| LBZ | Angkasa Super Service | Indonesia | |||
| HEZ | Arrow Aviation | ARROW | Israel | ||
| UAH | Air Experience Flight, Cranwell | United Kingdom | Royal Air Force | ||
| RVQ | Aero Jet International | REVA AIR | United States | ||
| ASK | Aerosky | MULTISKY | Spain | ||
| AEH | Aero4m | AEROCUTTER | Slovenia | ||
| ERO | Aeroecom | AEROECOM | Venezuela | ||
| A8 | XAU | Aerolink Uganda | PEARL | Uganda | |
| NKY | Aeromonkey | AEROMON | Mexico | ||
| AWP | Aeroworld Pakistan | Pakistan | |||
| AGA | AG Air | GEOLINE | Georgia | ||
| ABZ | Air Ambulance Services | ISLAND LIFEFLIGHT | Bahamas | ||
| RV | ROU | Air Canada Rouge | ROUGE | Canada | |
| CNM | Air China Inner Mongolia | MENGYUAN | China | ||
| VRE | Air Côte d'Ivoire | COTE DIVORIE | Ivory Coast | ||
| AWL | Air Walser | Malta | |||
| AXY | Air X Charter | LEGEND | Malta | ||
| OES | ART Aviation | ART AUSTRIA | Austria | ||
| ASF | Austrian Air Force | AUSTRIAN AIRFORCE | Austria | ||
| AVG | Aviation Legacy | AVILEF | Gambia | ||
| 7A | AZY | Aztec Worldwide Airlines | AZTEC WORLD | United States | |
| 6U | ACX | Air Cargo Germany | LOADMASTER | Germany | defunct |
| AAD | Aero Aviation Centre Ltd. | SUNRISE | Canada | Ceased operations 1995 | |
| SII | Aero Servicios Ejecutivos Internacionales | ASEISA | Mexico | ||
| BZS | Aero Biniza | BINIZA | Mexico | ||
| Aero Comondu | AERO COMONDU | Mexico | |||
| AET | Aero-Palma | AERO PALMA | Spain | defunct | |
| ABM | Aero Albatros | ALBATROS ESPANA | Spain | ||
| ZI | AAF | Aigle Azur | AIGLE AZUR | France | Former name: Lucas Aigle Azur; former IATA code: LK |
| AAM | Aim Air | Moldova | |||
| AAO | Atlantis Airlines (USA) | ATLANTIS AIR | United States | ||
| AAP | Aerovista Airlines | AEROVISTA GROUP | Kyrgyzstan | defunct | |
| AE | AE | Air Ceylon | CEYLON | Sri Lanka | defunct |
| 4K* | AAS | Askari Aviation | AL-ASS | Pakistan | |
| AAU | Australia Asia Airlines | AUSTASIA | Australia | Subsidiary merged into Qantas; former IATA code: IM | |
| AAV | Astro Air International | ASTRO-PHIL | United States | ||
| 8U | AAW | Afriqiyah Airways | AFRIQIYAH | Libya | |
| Q9 | AFU | Afrinat International Airlines | AFRINAT | Gambia | defunct, ICAO code no longer allocated |
| AAX | Afric'air Express | AFREX | Côte d'Ivoire | defunct | |
| BRL | Air Brasd'or | BRASD'OR | Canada | ||
| AFH | Air Fecteau | FECTO | Canada | defunct | |
| BRM | Air 500 | BOOMERANG | Canada | defunct | |
| AAG | Atlantic Flight Training | ATLANTIC | United Kingdom | Changed from Air Atlantique in 2014 [1] | |
| KI | AAG | Air Atlantique | ATLANTIC | United Kingdom | Former name: Atlantic Air Transport; former IATA codes: 7M, DG, transferred to Atlantic Flight Training in 2014. |
| QB | AAJ | Air Alma | AIR ALMA | Canada | Ceased operations 10/01/2002; former IATA code: 4L |
| ACS | Air Cess | Liberia | defunct | ||
| ADT | Air Dorval | AIR DORVAL | Canada | defunct | |
| AHN | Air Hungaria | AIR HUNGARIA | Hungary | ||
| AHR | Air Adriatic | ADRIATIC | Croatia | defunct | |
| LD | AHK | Air Hong Kong | AIR HONG KONG | Hong Kong | |
| AHS | Air Viggi San Raffaele | AIRSAR | Italy | ||
| AAI | Air Aurora | BOREALIS | United States | Former IATA code: AX | |
| ACU | Air Cargo Transportation System | AFRISPIRIT | Kenya | ||
| ACV | Air Charter Service | United Kingdom | ICAO code no longer allocated | ||
| ADC | Air Atlantic Dominicana | ATLAN-DOMINICAN | Dominican Republic | defunct | |
| 2Y | ADW | Air Andaman | AIR ANDAMAN | Thailand | defunct 2004 |
| UX | AEA | Air Europa | EUROPA | Spain | |
| AEQ | Air Express | LUNA | Sweden | ||
| IG | AEY | Air Italy | AIR ITALY | Italy | merged into Meridiana |
| ASW | Air Southwest Ltd. | AIRSOUTHWEST | Canada | defunct | |
| ASX | Air Special | AIRSPEC | Czech Republic | ||
| NX | AMU | Air Macau | AIR MACAO | Macao | |
| 6A | AMW | Armenia Airways | ARMENIA | Armenia | |
| HM | SEY | Air Seychelles | SEYCHELLES | Seychelles | |
| SFB | Air Sofia | AIR SOFIA | Bulgaria | defunct | |
| BRF | Air Bravo | AIR BRAVO | Uganda | ||
| AF | AFR | Air France | AIRFRANS | France | |
| ACG | Air Partner | AIR PARTNER | United Kingdom | ||
| SB | ACI | Air Caledonie International | AIRCALIN | France | |
| VSG | AirClass Airways | VISIG | Spain | formerly Visig Operaciones Aéreas | |
| EH | AKX | Air Nippon Network Co. Ltd. | ALFA WING | Japan | merged into ANA Wings |
| ALM | Air ALM | ANTILLEAN | Netherlands Antilles | defunct | |
| ALN | Air Lincoln | CHICAGO LINCOLN | United States | ||
| ACM | Air Caledonia | WEST CAL | Canada | ||
| ED | AXE | AirExplore | GALILEO | Slovakia | |
| AGM | Air Guam | AIR GUAM | United States | ||
| ZW | AWI | Air Wisconsin | WISCONSIN | United States | |
| ALU | Air Luxor STP | LUXORJET | São Tomé and Príncipe | ||
| YI | RSI | Air Sunshine | AIR SUNSHINE | United States | |
| GN | AGN | Air Gabon | GOLF NOVEMBER | Gabon | defunct |
| 9T | RUN | Air ACT | CARGO TURK | Turkey | |
| AFV | Air Afrique Vacancies | AFRIQUE VACANCE | Côte d'Ivoire | ||
| ZB | ABN | Air Albania | AIR ALBANIA | Albania | |
| 3J | AAQ | Air Alliance | LIAISON | Canada | defunct |
| WP | ATW | Air Antwerp | DEVIL | Belgium | defunct |
| BX | ABL | Air Busan | AIR BUSAN | South Korea | |
| ACH | Air Cargo Plus | AIR PLUS | Liberia | ||
| AAT | Air Central Asia | Kyrgyzstan | |||
| LB | LEP | Air Costa | LECOSTA | India | |
| AFS | Air Data | United Kingdom | |||
| GL | GRL | Air Greenland | GREENLAND | Greenland | |
| 3S | GUY | Air Guyane Express | GREEN BIRD | French Guiana | |
| AHO | Air Hamburg | AIR HAMBURG | Germany | ||
| NQ | AJX | Air Japan | AIR JAPAN | Japan | |
| IJ | LIB | Air Liberté | LIBERTE | France | defunct |
| TT | KLA | Air Lithuania | KAUNAS | Lithuania | defunct |
| QM | AIM | Air Malawi | MALAWI | Malawi | defunct |
| L6 | AMI | Air Maldives | AIR MALDIVES | Maldives | defunct |
| ML | BIE | Air Mediterranee | MEDITERRANEE | France | defunct |
| P8 | MKG | Air Mekong | MEKONG | Vietnam | defunct |
| AMG | Air Minas Linhas Aéreas | AIR MINAS | Brazil | defunct | |
| 4O | MNE | Air Montenegro | MOUNT EAGLE | Montenegro | |
| TAH | Air Moorea | AIR MOOREA | France | defunct | |
| ANV | Air Nevada | AIR NEVADA | United States | ||
| NZ | ANZ | Air New Zealand | NEW ZEALAND | New Zealand | "NZ" used by New Zealand National Airways Corporation until its merger with Air New Zealand in 1978 "TE" used by TEAL from 1940-1965, then Air New Zealand from 1965-1990 |
| 4N | ANT | Air North Charter - Canada | AIR NORTH | Canada | |
| AOE | Air One Executive | Italy | |||
| AEI | Air Poland | POLISH BIRD | Poland | defunct | |
| YP | APZ | Air Premia | AIR PREMIA | South Korea | |
| AVZ | Air Valencia | AIR VALENCIA | Spain | ||
| AMO | Air Montreal (Air Holdings Inc.) | AIR MONTREAL | Canada | ||
| BM | Air Sicilia | Italy | defunct | ||
| AMR | Air Specialties Corporation | AIR AM | United States | Air American, Total Air | |
| AMS | Air Muskoka | AIR MUSKOKA | Canada | ||
| AOJ | Avcon Jet | ASTERIX | Austria | ||
| AJU | Air Jetsul | AIRJETSUL | Portugal | ||
| AKA | Air Korea Co. Ltd. | Republic of Korea | |||
| LIV | Air Livonia | LIVONIA | Estonia | defunct | |
| ZX | ABL | Air BC | AIRCOACH | Canada | Merged into Air Canada Jazz |
| ABN | Air Fret Senegal | Senegal | |||
| LJA | Air Jamahiriya Company | AIR JAMAHIRIYA | Libya | ICAO code no longer allocated | |
| G8 | AGB | Air Service Gabon | Gabon | defunct | |
| 7T | AGV | Air Glaciers | AIR GLACIERS | Switzerland | |
| MVM | Air Cargo America | PEGASUS | United States | ||
| AMY | Air Ambar | AIR AMBAR | Dominican Republic | ||
| 6V | VGA | Air Vegas | AIR VEGAS | United States | defunct |
| AOU | Air Tractor | AIR TRACTOR | Croatia | ||
| APA | Air Park Aviation Ltd. | CAN-AM | Canada | ||
| APG | Air People International | AIR PEOPLE | Thailand | ||
| NH | ANA | All Nippon Airways | ALL NIPPON | Japan | |
| ANB | Air Navigation And Trading Co. Ltd. | AIR NAV | United Kingdom | Former ICAO code: AAT | |
| NGO | Air-Angol | AIR ANGOL | Angola | ||
| TZ | TWG | air-taxi Europe | TWINGOOSE | Germany | |
| NGP | Air Nigeria | REGAL EAGLE | Nigeria | defunct | |
| 2Q | SNC | Air Cargo Carriers | NIGHT CARGO | United States | |
| SND | Air Samarkand | ARSAM | Uzbekistan | ||
| V7 | SNG | Air Senegal International | AIR SENEGAL | Senegal | defunct |
| SNY | Air Sandy | AIR SANDY | Canada | ||
| AII | Air Integra | INTEGRA | Canada | ||
| BFF | Air Baffin | AIR BAFFIN | Canada | renamed to Air Nunavut | |
| BDM | Air Bandama | BANDAMA | Ivory Coast | ||
| AB | BER | Air Berlin | AIR BERLIN | Germany | defunct |
| ABT | Air Brousse | AIR BROUSSE | Canada | defunct | |
| APV | Air Plan International | AIR PLAN | Democratic Republic of the Congo | ||
| ARX | Air Xpress, Inc. | AIREX | United States | ||
| HTT | Air Tchad | HOTEL TANGO | Chad | ||
| ARZ | Air Resorts | AIR RESORTS | United States | ||
| ASB | Air-Spray 1967 Ltd. | AIR SPRAY | Canada | ||
| ASC | Air Star Corporation | AIR STAR | Canada | ||
| 4D | ASD | Air Sinai | AIR SINAI | Egypt | |
| AQN | Air Queensland | BUSHAIR | Australia | defunct | |
| ARC | Air Routing International Corp. | United States | |||
| QN | ARR | Air Armenia | AIR ARMENIA | Armenia | |
| AIL | Air Illinois | AIR ILLINOIS | United States | defunct | |
| AI | AIC | Air India Limited | AIRINDIA | India | |
| AIG | Air Inter Gabon | Gabon | |||
| PJ | SPM | Air Saint Pierre | SAINT-PIERRE | France | |
| SZ | WOW | Air Southwest | SWALLOW | United Kingdom | defunct |
| ATJ | Air Traffic GmbH | SNOOPY | Germany | ||
| 8C | ATN | Air Transport International | AIR TRANSPORT | United States | |
| ATQ | Air Transport Schiphol | MULTI | Netherlands | ||
| ATS | Air Transport Service | Democratic Republic of the Congo | |||
| AVG | Air Falcon | DJIBOUTI FALCON | Djibouti | ||
| AUX | Air Uganda International Ltd. | Uganda | |||
| NF | AVN | Air Vanuatu | AIR VAN | Vanuatu | |
| ZB | BUB | Air Bourbon | BOURBON | Reunion | defunct |
| CC | ABD | Air Atlanta Icelandic | ATLANTA | Iceland | |
| AIE | Air Inuit | AIR INUIT | Canada | ||
| AIS | Air Sureste | SURESTE | Spain | ||
| RB | SBK | Air Srpska | Air Srpska | Bosnia and Herzegovina | defunct |
| TN | THT | Air Tahiti Nui | TAHITI AIRLINES | France | |
| SW | NMB | Air Namibia | NAMIBIA | Namibia | defunct |
| NSK | Air Intersalonika | INTERSALONIKA | Greece | ||
| NTL | Air Anatolia | AIR ANATOLIA | Turkey | defunct | |
| SGA | Air Saigon | AIR SAIGON | Vietnam | ||
| AFW | Afrique Regional Airways | AFRAIR | Côte d'Ivoire | defunct | |
| AW | AFW | Africa World Airlines | BLACKSTAR | Ghana | |
| ACX | Air Charters | PARAIR | Canada | defunct | |
| PE | AEL | Air Europe Italy | AIR EUROPE | Italy | defunct |
| JM | AJM | Air Jamaica | JAMAICA | Jamaica | merged into Caribbean Airlines; ICAO and IATA codes no longer used. |
| AWN | Air Niamey | AIR NIAMEY | Niger | ||
| AWT | Air West | AIR WEST | Canada | ||
| 6G | AWW | Air Wales | RED DRAGON | United Kingdom | defunct, ICAO code no longer allocated |
| TX | FWI | Air Caraïbes | FRENCH WEST | France | |
| IX | AXB | Air India Express | EXPRESS INDIA | India | |
| AXD | Air Express | AIR SUDEX | Sudan | ||
| BSB | Air Wings | ARBAS | Moldova | ||
| BT | BTI | Air Baltic | AIRBALTIC | Latvia | |
| ANI | Air Atlantic (Nig) Limited | NIGALANTIC | Nigeria | ||
| EL | ANK | Air Nippon | ANK AIR | Japan | merged into All Nippon Airways, ICAO code no longer allocated |
| YW | ANE | Air Nostrum | AIR NOSTRUM | Spain | |
| PX | ANG | Air Niugini | NIUGINI | Papua New Guinea | |
| G9 | ABY | Air Arabia | ARABIA | United Arab Emirates | |
| AC | ACA | Air Canada | AIR CANADA | Canada | |
| AP | LAV | AlbaStar | ALBASTAR | Spain | |
| E9 | MHS | Air Memphis | AIR MEMPHIS | Egypt | defunct |
| XT | AXL | Air Exel | EXEL COMMUTER | Netherlands | defunct |
| AZF | Air Zermatt AG | AIR ZERMATT | Switzerland | ||
| UM | AZW | Air Zimbabwe | AIR ZIMBABWE | Zimbabwe | |
| MHU | Air Memphis | MEPHIS UGANDA | Uganda | ||
| MKH | Air Marrakech Service | AIR MARRAKECH | Morocco | ||
| AZX | Air Max Africa | AZIMA | Gabon | defunct | |
| S2 | RSH | Air Sahara | SAHARA | India | renamed to Jetlite |
| ATA | Air Transport Association | United States | |||
| TC | ATC | Air Tanzania | TANZANIA | Tanzania | |
| XAC | Air Charter World | United States | |||
| 2J | VBW | Air Burkina | BURKINA | Burkina Faso | |
| ATH | Air Travel Corp. | AIR TRAVEL | United States | ||
| KM | AMC | Air Malta | AIR MALTA | Malta | |
| YT | TGA | Air Togo | AIR TOGO | Togo | defunct |
| ASJ | Air Satellite | SATELLITE | Canada | defunct | |
| ASN | Air and Sea Transport | Russia | |||
| ASS | Air Class, S.A. de C.V. | AIR CLASS | Mexico | ||
| NPL | Air Nepal International | AIR NEPAL | Nepal | defunct | |
| NPR | Air Napier | New Zealand | defunct | ||
| WAM | Air Taxi & Cargo | TAXI CARGO | Sudan | ||
| RSM | Air Somalia | AIR SOMALIA | Somali Republic | ||
| AWZ | AirWest | Sudan | |||
| G4 | AAY | Allegiant Air | ALLEGIANT | United States | |
| AAZ | Angus Aviation | ANGUS | Canada | defunct | |
| ABA | Artem-Avia | ARTEM-AVIA | Ukraine | defunct | |
| ABB | African Business and Transportations | AFRICAN BUSINESS | Democratic Republic of the Congo | ||
| ABF | Aerial Oy | SKYWINGS | Finland | ||
| ABK | Alberta Citylink | ALBERTA CITYLINK | Canada | defunct, ICAO code no longer allocated | |
| ABO | APSA Colombia | AEROEXPRESO | Colombia | aka Aeroexpreso Bogota | |
| O4 | ABV | Antrak Air | ANTRAK | Ghana | |
| GB | ABX | Airborne Express | ABEX | United States | August 14, 2003 merged into DHL |
| ABZ | ATA Brasil | ATA-BRAZIL | Brazil | defunct | |
| ACC | Avcard Services | United Kingdom | ICAO code no longer allocated | ||
| ACY | Atlas Cargo Airlines | ATLAS CARGOLINES | Morocco | ||
| ADA | Airservices Australia | AUSCAL | Australia | Flight Inspection Unit | |
| 8T | TID | Air Tindi | TINDI | Canada | |
| ADB | Antonov Airlines | ANTONOV BUREAU | Ukraine | Antonov Design Bureau | |
| ADG | Aerea Flying Training Organization | AEREA TRAINING | Spain | ||
| ADI | Audeli Air | AUDELI | Spain | ||
| ADL | Aero Dynamics | COTSWOLD | United Kingdom | ||
| ADN | Aero-Dienst | AERODIENST | Germany | ||
| ADP | Aerodiplomatic | AERODIPLOMATIC | Mexico | ||
| 3L | ADY | Air Arabia Abu Dhabi | Nawras [6] [7] | United Arab Emirates | |
| ADQ | Avion Taxi | AIR DATA | Canada | 2695731 Canada Inc. | |
| ADS | Aviones de Sonora | SONORAV | Mexico | ||
| ADU | Airdeal Oy | AIRDEAL | Finland | ||
| EM* | AEB | Aero Benin | AEROBEN | Benin | defunct |
| AEC | Aerocésar | AEROCESAR | Colombia | defunct; aka Aerovías del César | |
| AED | Aerotrans Airlines | Russia | defunct | ||
| ADX | Anderson Aviation | ANDAX | United States | ||
| AEI | Aeroexpreso Interamericano | INTERAM | Colombia | defunct | |
| AEJ | Air Express | KHAKI EXPRESS | Tanzania | ||
| AEK | Aerocon | AEROCON | Bolivia | ||
| AEM | Aero Madrid | AEROMADRID | Spain | ||
| KD | AEN | Air Enterprise | AIR ENTERPRISE | France | defunct |
| AEO | Aeroservicios Ejecutivos Del Occidente | AERO OCCIDENTE | Mexico | ||
| AEP | Aerotec Escuela de Pilotos | AEROTEC | Spain | ||
| AX | AAC | AmericanConnection [8] | CONNECT AMERICA | United States | defunct |
| AN | AAA | Ansett Australia | ANSETT | Australia | defunct |
| AAC | Army Air Corps | ARMYAIR | United Kingdom | ||
| 5W | AEU | Astraeus | FLYSTAR | United Kingdom | defunct, ICAO code no longer allocated |
| AEV | Aeroventas | AEROVENTAS | Mexico | ||
| VV | AEW | Aerosvit Airlines | AEROSVIT | Ukraine | defunct |
| AEX | Airway Express | AVCO | United States | ICAO code no longer allocated | |
| AEZ | Aerial Transit | AERIAL TRANZ | United States | ||
| AFA | Alfa Air | BLUE ALFA | Czech Republic | ||
| WK | AFB | American Falcon | AMERICAN FALCON | Argentina | defunct |
| UTY | Alliance Airlines | UNITY | Australia | ||
| UVS | Air Universal | UNI-LEONE | Sierra Leone | defunct | |
| UVT | Auvia Air | AUVIA | Indonesia | ||
| AFC | African West Air | AFRICAN WEST | Senegal | ||
| AFE | Airfast Indonesia | AIRFAST | Indonesia | ||
| FG | AFG | Ariana Afghan Airlines | ARIANA | Afghanistan | |
| RV* | AFI | Africaone | AFRICAWORLD | The Gambia | |
| Y2 | AFJ | Alliance Air | JAMBO | Uganda | Ceased operations 08/10/2000 |
| AFK | Africa Air Links | AFRICA LINKS | Sierra Leone | ||
| AFO | Aero Empresa Mexicana | AERO EMPRESA | Mexico | ||
| AFQ | Alba Servizi Aerotrasporti | ALBA | Italy | ||
| 5Z | AFX | Airfreight Express | United Kingdom | Ceased operations 08/03/2002 | |
| AFY | Africa Chartered Services | AFRICA CHARTERED | Nigeria | ||
| AFZ | Africa Freight Services | AFREIGHT | Zambia | ||
| AGA | Aeronaves Del Centro | Venezuela | |||
| AGC | Arab Agricultural Aviation Company | AGRICO | Egypt | ||
| AGF | Atlantic Gulf Airlines | ATLANTIC GULF | United States | defunct | |
| 5D | SLI | Aeroméxico Connect | COSTERA | Mexico | |
| AGG | Algoma Airways | ALGOMA | Canada | ICAO code no longer allocated | |
| AGH | Altagna | ALTAGNA | France | ||
| AGO | Angola Air Charter | ANGOLA CHARTER | Angola | ||
| AGP | AERFI Group | AIR TARA | Ireland | ||
| 1A | AGT | Amadeus IT Group | AMADEUS | Spain | |
| AGU | Angara Airlines | SARMA | Russia | ||
| AGW | Aero Gambia | AERO GAMBIA | Gambia | defunct, ICAO code no longer allocated | |
| JJ | AGX | Aviogenex | GENEX | Serbia | defunct |
| BLR | Atlantic Coast Airlines | BLUE RIDGE | United States | defunct | |
| BLZ | Aero Barloz | AEROLOZ | Mexico | ||
| PL | PLI | Aeroperú | Aeroperu | Peru | defunct |
| 8A | BMM | Atlas Blue | ATLAS BLUE | Morocco | defunct |
| BNB | Aero Banobras | AEROBANOBRAS | Mexico | ||
| AGY | Aero Flight Service | FLIGHT GROUP | United States | ||
| AGZ | Agrolet-Mci | AGROLET | Slovakia | ||
| GD | AHA | Air Alpha Greenland | AIR ALPHA | Denmark | sold to Air Greenland |
| AHC | Azal Avia Cargo | AZALAVIACARGO | Azerbaijan | Cargo Airline of the State Concern Azerbaijan Hava | |
| AHE | Airport Helicopter Basel, Muller & Co. | AIRPORT HELICOPTER | Switzerland | ||
| CJE | Aeroservices Corporate | BIRD JET | France | ||
| AHF | Aspen Helicopters | ASPEN | United States | ||
| AHG | Aerochago Airlines | AEROCHAGO | Dominican Republic | defunct | |
| AHH | Airplanes Holdings | AIRHOLD | Ireland | ||
| AHP | Aerochiapas | AEROCHIAPAS | Mexico | ||
| HT | AHW | Aeromist-Kharkiv | AEROMIST | Ukraine | defunct |
| J2 | AHY | Azerbaijan Airlines | AZAL | Azerbaijan | |
| U3 | AIA | Avies | AVIES | Estonia | |
| 4Y | AIB | Airbus Industrie | AIRBUS INDUSTRIE | France | |
| KJ | AIH | Air Incheon | AIR INCHEON | South Korea | |
| RS | ASV | Air Seoul | AIR SEOUL | South Korea | |
| AIK | African Airlines International Limited | AFRICAN AIRLINES | Kenya | ||
| AIN | African International Airways | FLY CARGO | Eswatini | ||
| 5A | AIP | Alpine Air Express | ALPINE AIR | United States | |
| AIU | Alicante Internacional Airlines | ALIA | Spain | ||
| PA | ABQ | Airblue | AIRBLUE | Pakistan | |
| THM | Airmark Aviation | THAI AIRMARK | Thailand | ||
| AIR | Airlift International | AIRLIFT | United States | defunct | |
| AIT | Airest | AIREST CARGO | Estonia | ||
| AIV | Airvias S/A Linhas Aéreas | AIRVIAS | Brazil | ||
| W4 | BES | Aero Services Executive | BIRD EXPRESS | France | |
| AIW | Atlantic Island Airways | TARTAN | Canada | ||
| AIX | Aircruising Australia | CRUISER | Australia | ||
| AIY | Aircrew Check and Training Australia | AIRCREW | Australia | ||
| IZ | AIZ | Arkia Israel Airlines | ARKIA | Israel | |
| AJA | Afghan Jet International Airlines | AFGHAN JET | Afghanistan | ||
| AJB | Aero JBR | AERO JBR | Mexico | ||
| AJE | Aero Jet Express | JET EXPRESS | Mexico | defunct | |
| AJI | Ameristar Jet Charter | AMERISTAR | United States | ||
| AJK | Allied Air | BAMBI | Nigeria | ||
| AJO | Aero Ejecutivo | AEROEXO | Mexico | defunct | |
| AJS | Aeroejecutivos Colombia | AEROEJECUTIVOS | Colombia | Aeroejecutivos Aeroservicios Ejecutivos | |
| M6 | AJT | Amerijet International | AMERIJET | United States | |
| AJV | ANA & JP Express | AYJAY CARGO | Japan | merged into Air Japan | |
| AJW | Alpha Jet International | ALPHAJET | United States | ||
| AJY | AJet | AYJET | Cyprus | defunct, ICAO code no longer allocated | |
| AKB | Aktjubavia | KARAB | Kazakhstan | ||
| AKC | Arca Aerovías Colombianas Ltda. | ARCA | Colombia | ||
| AKF | Anikay Air Company | ANIKAY | Kyrgyzstan | ||
| AKH | Akhal | AKHAL | Turkmenistan | ||
| MNI | Aeromilenio | AEROMIL | Mexico | ||
| AKK | Aklak Air | AKLAK | Canada | ||
| 4A | AKL | Air Kiribati | KIRIBATI | Kiribati | |
| AKN | Alkan Air | ALKAN AIR | Canada | ||
| AKW | Angkor Airways | ANGKORWAYS | Cambodia | defunct | |
| AKZ | AK Navigator LLC | ABSOLUTE | Kazakhstan | ICAO code no longer allocated | |
| ALB | Aero Albatros | ALBATROS | Mexico | ||
| ALD | Albion Aviation | ALBION | United Kingdom | ||
| ALE | Aeroalas Colombia | AEROALAS | Colombia | defunct | |
| ALF | Allied Command Europe (Mobile Force) | ACEFORCE | Belgium | ||
| FYS | American Flyers | AMERICAN FLYERS | United States | ||
| DFA | Aero Coach Aviation | AERO COACH | United States | ||
| EV | ASQ | Atlantic Southeast Airlines | ACEY | United States | Merged into ExpressJet Airlines |
| ALG | Air Logistics | AIRLOG | United States | ||
| ALL | Aerovallarta | VALLARTA | Mexico | ||
| HP | AWE | America West Airlines | CACTUS | United States | Merged with US Airways |
| 6R | TNO | Aerotransporte de Carga Union | AEROUNION | Mexico | |
| TND | Aero Taxis Cessna | TAXIS CESSNA | Mexico | ||
| TMP | Arizona Express Airlines | TEMPE | United States | ||
| ALO | Allegheny Commuter Airlines | ALLEGHENY | United States | US Airways Express | |
| ALP | Allpoints Jet | ALLPOINTS | China | ||
| ALP | Alpliner AG | ALPINER | Switzerland | Code now allocated to another user | |
| ALQ | Altair Aviation (1986) | ALTAIR | Canada | ||
| VH | ALV | Aeropostal Alas de Venezuela | AEROPOSTAL | Venezuela | |
| ALW | Alas Nacionales, S.A. | ALNACIONAL | Dominican Republic | ||
| ALY | Alyeska Air Service | ALYESKA | United States | ||
| ALZ | Alta Flights (Charters) Ltd. | Canada | |||
| AMA | ATMA | ADIK | Kazakhstan | ||
| AMD | Aerolíneas Medellín | AEROLINEAS MEDELLIN | Colombia | defunct | |
| AMF | Ameriflight | AMFLIGHT | United States | ||
| AMH | Alan Mann Helicopters Ltd. | MANN | United Kingdom | ICAO code no longer allocated | |
| AMJ | Aviation Amos | AVIATION AMOS | Canada | ||
| AMK | Amerer Air | AMER AIR | Austria | ||
| AMM | Aeroputul International Marculesti | AEROM | Moldova | ||
| DP | AMM | Air 2000 | JETSET | United Kingdom | defunct |
| AMP | Aero Transporte S.A. (ATSA) | ATSA | Peru | ||
| AMQ | Aeromedicare Ltd. | LIFELINE | United Kingdom | No longer current | |
| AMQ | Aircraft Management and Consulting | AMEX | Poland | ||
| TZ | AMT | ATA Airlines | AMTRAN | United States | defunct |
| YJ | AMV | AMC Airlines | AMC AIRLINES | Egypt | Aircraft Maintenance Company |
| AM | AMX | Aeroméxico | AEROMEXICO | Mexico | |
| AMZ | Amiya Airline | AMIYA AIR | Nigeria | ||
| ANC | Anglo Cargo | ANGLO | United Kingdom | Defunct, ICAO code no longer allocated | |
| BRP | AeroBratsk | AEROBRA | Russia | ||
| ANH | Alajnihah for Air Transport | ALAJNIHAH | Libya | ||
| ANM | Aerotransportacion de Norteamerica | NORAM | Mexico | ||
| ANM | Antares Airtransport, Maintenance & Service GmbH | ANTARES | Germany | ICAO Code now allocated to another user | |
| TL | ANO | Airnorth | TOPEND | Australia | |
| ANQ | Aerolínea de Antioquia | ANTIOQUIA | Colombia | ||
| OY | ANS | Andes Líneas Aéreas | AEROANDES | Argentina | |
| IW | AOM | AOM French Airlines | French Lines | France | defunct |
| ANW | Aviación Del Noroeste, S.A. de C.V. | AVINOR | Mexico | defunct | |
| SAP | Avia Jaynar | TOBOL | Kazakhstan | ||
| EMS | Aero Servicios Empresariales | SERVIEMPRESARIAL | Mexico | ||
| AOA | Alcon Servicios Aéreos, S.A. de C.V. | ALCON | Mexico | ||
| J6 | AOC | AVCOM | AERO AVCOM | Russia | |
| AOD | Aero Vodochody | AERO CZECH | Czech Republic | ||
| AOF | Atair Pty Ltd. | ATAIR | South Africa | ||
| 2D | AOG | Aero VIP | AVIP | Argentina | defunct |
| MUN | Aeromundo Ejecutivo | AEROMUNDO | Mexico | ||
| MUR | Aerolínea Muri | MURI | Mexico | ||
| AOI | Astoria, Inc. | ASTORIA | Canada | defunct | |
| NRO | Aero Rent JSC | AEROMASTER | Russia | defunct | |
| NRP | Aeronord-Grup | AERONORD | Moldova | ||
| AOK | Aeroatlantico Colombia | Colombia | defunct | ||
| AOL | Angkor Airlines | ANGKOR AIR | Cambodia | defunct | |
| AON | Aero Entreprise | AERO ENTERPRISE | France | ||
| AOO | As, Opened Joint Stock Company | COMPANY AS | Ukraine | ||
| AOP | Aeropiloto | AEROPILOTO | Portugal | ||
| VB | VIV | Aeroenlaces Nacionales | AEROENLACES | Mexico | Former ICAO code: AEN |
| VIZ | Aerovis Airlines | AEROVIZ | Ukraine | ||
| VJE | AvJet Routing | United Arab Emirates | |||
| VGF | Aerovista Gulf Express | VISTA GULF | United Arab Emirates | ||
| VER | Almaver | ALMAVER | Mexico | ||
| AOR | Afro International Ent. Limited | INTER-AFRO | Nigeria | ||
| SMX | Alitalia Express | ALIEXPRESS | Italy | ||
| OE | AOT | Asia Overnight Express | ASIA OVERNIGHT | Philippines | |
| AOV | Aero Vision | AEROVISION | France | ||
| AOX | Aerotaxi Del Valle | AEROVALLE | Colombia | ||
| APC | Airpac Airlines, Inc. | AIRPAC | United States | ||
| SVM | Aeroservicios Monterrey | SERVIMONTE | Mexico | ||
| APF | Amapola Flyg AB | AMAPOLA | Sweden | ||
| APH | Alpha Aviation, Inc. | AIRFLIGHT | United States | ||
| API | ASA Pesada, Lda. | ASA PESADA | Angola | ||
| APJ | Peach Aviation | AIR PEACH | Japan | ||
| PET | Aerotransporte Petrolero | AEROPETRO | Colombia | ||
| GV | ARF | Aero Flight | Aero Fox | Germany | defunct |
| BKL | Aircompany Barcol | BARCOL | Russia | ||
| BLA | All Charter Limited | ALL CHARTER | United Kingdom | ICAO code no longer allocated | |
| APL | Appalachian Flying Service, Inc. | APPALACHIAN | United States | ||
| APM | Airpac, Inc. | ALASKA PACIFIC | United States | ||
| APO | Aeropro | AEROPRO | Canada | defunct | |
| APP | AlpAvia d.o.o. | ALPAVIA | Slovenia | ||
| APQ | Aspen Aviation | ASPEN BASE | United States | ||
| APU | Aeropuma, S.A. | AEROPUMA | El Salvador | ||
| JW | APW | Arrow Air | BIG A | United States | defunct |
| APX | Apex Air Cargo | PARCEL EXPRESS | United States | ||
| APY | APA Internacional | APA INTERNACIONAL | Dominican Republic | ||
| AQA | Aeroatlas, S.A. | ATCO | Colombia | ||
| AQL | Aquila Air Ltd. | AQUILA | Canada | ||
| AQO | Aluminum Company Of America | ALCOA SHUTTLE | United States | Alcoa Aircraft Operations | |
| AQT | Avioquintana | AVIOQUINTANA | Mexico | ||
| AQU | AirQuarius Aviation | QUARIUS | South Africa | defunct | |
| AQZ | Aerodyne Charter Company | QUANZA | United States | ||
| ARA | Arik Air | ARIK AIR | Nigeria | ||
| ARB | Avia Air N.V. | AVIAIR | Aruba | ||
| 2B | AWT | Albawings | ALBAWINGS | Albania | |
| 4C | ARE | Aires, Aerovías de Integración Regional, S.A. | AIRES | Colombia | renamed to LAN Colombia |
| AR | ARG | Aerolíneas Argentinas | ARGENTINA | Argentina | |
| ARH | Arrowhead Airways | ARROWHEAD | United States | ||
| ARI | Aero Vics | AEROVICS | Mexico | ||
| SUN | Antillana De Navegación Aérea | Dominican Republic | |||
| SUO | Aeroservicios De San Luis | SERVICIO SANLUIS | Mexico | ||
| SUP | Aerosuper | AEROSUPER | Mexico | ||
| ARK | Aero Link Air Services S.L. | LINK SERVICE | Spain | ||
| ARL | Airlec - Air Aquitaine Transport | AIRLEC | France | ||
| ARM | Aeromarket Express | AMEX | Spain | defunct | |
| ARO | Arrow Aviation Ltd. | ARROW | Canada | defunct | |
| KLD | Air Klaipėda | AIR KLAIPEDA | Lithuania | ||
| ARQ | Armstrong Air, Inc. | ARMSTRONG | Canada | ||
| ARS | Aeromet Servicios | METSERVICE | Chile | ||
| ART | Aerotal Aerolíneas Territoriales de Colombia Ltda. | AEROTAL | Colombia | defunct | |
| ARV | Aravco Ltd. | ARAVCO | United Kingdom | ||
| ARW | Aria | ARIABIRD | France | ||
| OST | Airline Alania | ALANIA | Russia | ||
| HUC | Aerolíneas de Techuacán | LINEAS TEHUACAN | Mexico | ||
| HUT | Aerotransportes Huitzilin | AEROHUITZILIN | Mexico | ||
| HUY | Aero Transportes Del Humaya | AERO HUMAYA | Mexico | ||
| ARY | Argosy Airways | GOSEY | United States | ||
| AS | ASA | Alaska Airlines, Inc. | ALASKA | United States | |
| PL | ASE | Airstars | MOROZOV | Russia | defunct |
| ASF | Air Schefferville, Inc. | SCHEFF | Canada | ||
| ASG | African Star Airways (PTY) Ltd. | AFRICAN STAR | South Africa | ||
| ASI | Aerosun International, Inc. | AEROSUN | United States | ||
| ASM | Awesome Flight Services (PTY) Ltd. | AWESOME | South Africa | ||
| ASO | Aero Slovakia | AERO NITRA | Slovakia | ||
| ASP | Airsprint | AIRSPRINT | Canada | ||
| ASR | All Star Airlines, Inc. | ALL STAR | United States | ||
| AST | Aerolíneas Del Oeste | AEROESTE | Mexico | ||
| WAP | Arrow Panama | ARROW PANAMA | Panama | ||
| ASV | Astravia-Bissau Air Transports Ltd. | ASTRAVIA | Guinea-Bissau | ||
| OB | ASZ | Astrakhan Airlines | AIR ASTRAKHAN | Russia | defunct |
| ATB | Atlantair Ltd. | STARLITE | Canada | ||
| ATD | Aerotours Dominicana | AEROTOURS | Dominican Republic | ||
| ATE | Atlantis Transportation Services, Ltd. | ATLANTIS CANADA | Canada | ||
| ATG | Aerotranscargo[ citation needed ] | MOLDCARGO | Moldova | ||
| HC | ATI | Aero-Tropics Air Services | AEROTROPICS | Australia | defunct |
| ATK | AeroTACA | AEROTACA | Colombia | defunct, Aerotaxi Casanare | |
| ATL | Atlas Air Service AG | AIR BREMEN | Germany | ||
| FO | ATM | Airlines of Tasmania | AIRTAS | Australia | |
| CPV | Air Corporate | AIRCORPORATE | Italy | ||
| ATP | ASTRAL Colombia - Aerotransportes Especiales Ltda. | ASTRAL | Colombia | ||
| FEO | Aeroferinco | FERINCO | Mexico | ||
| FES | Aero Taxis Y Servicios Alfe | AERO ALFE | Mexico | ||
| FFA | Avialesookhrana | AVIALESOOKHRANA | Russia | ||
| FFB | Africair Service | FOXTROT FOXTROT | Senegal | ||
| ATR | Atlas Airlines | ATLAS-AIR | United States | ||
| ATT | Aer Turas | AERTURAS | Ireland | defunct | |
| ATU | Atlant Aerobatics Ltd. | ATLANT HUNGARY | Hungary | ||
| ATV | Avanti Air | AVANTI AIR | Germany | ||
| ATW | Aero Trades (Western) Ltd. | AERO TRADES | Canada | defunct, ICAO code no longer allocated | |
| OS | AUA | Austrian Airlines | AUSTRIAN | Austria | |
| IQ | AUB | Augsburg Airways | AUGSBURG-AIR | Germany | defunct |
| TUP | Aviastar-Tu | TUPOLEVAIR | Russia | ||
| RU | ABW | AirBridge Cargo | AIRBRIDGE CARGO | Russia | Former IATA: BO |
| TUR | ATUR | Ecuador | |||
| TXU | ATESA Aerotaxis Ecuatorianos | ATESA | Ecuador | ||
| TXX | Austin Express | COWBOY | United States | defunct | |
| AUD | Audi Air, Inc. | AUDI AIR | United States | ||
| AUF | Augusta Air Luftfahrtunternehmen | AUGUSTA | Germany | ||
| AUM | Air Atlantic Uruguay | ATLAMUR | Uruguay | ||
| AUN | Aviones Unidos | AVIONES UNIDOS | Mexico | ||
| AUP | Avia Business Group | Russia | |||
| SVE | Aero Servicios Expecializados | AEROESPECIAL | Mexico | ||
| GR | AUR | Aurigny Air Services | AYLINE | United Kingdom | |
| NO | AUS | Aus-Air | AUS-AIR | Australia | defunct |
| AU | AUT | Austral Líneas Aéreas | AUSTRAL | Argentina | |
| AUU | Aurora Aviation, Inc. | AURORA AIR | United States | ICAO code no longer allocated | |
| AUY | Aerolíneas Uruguayas, S.A. | AUSA | Uruguay | ||
| AVF | Aviair Aviation Ltd. | CARIBOO | Canada | ||
| AVH | AV8 Helicopters | KENT HELI | United Kingdom | ||
| AVJ | Avia Traffic Company | ATOMIC | Kyrgyzstan | ||
| AVK | AV8 Helicopters | AVIATE-COPTER | South Africa | ||
| AVM | Aviación Ejecutiva Mexicana, S.A. | AVEMEX | Mexico | ||
| AVO | Aviation at Work | AVIATION WORK | South Africa | ||
| AVP | Avcorp Registrations | AVCORP | United Kingdom | No longer used | |
| AVP | Aviacion Corporativa de Peubla | AVIA PUEBLA | Mexico | ||
| LFP | Alfa Aerospace | ALFA-SPACE | Australia | ||
| LFR | Atlantic Airfreight Aviation | LANFREIGHT | São Tomé and Príncipe | ||
| AVS | Avialsa T-35 | AVIALSA | Spain | ||
| AVT | Asia Avia Airlines | ASIAVIA | Indonesia | defunct | |
| AVU | Avia Sud Aérotaxi | AVIASUD | France | ||
| AVV | Airvantage Incorporated | AIRVANTAGE | United States | ||
| AVW | Aviator Airways | AVIATOR | Greece | ||
| AVX | Aviapaslauga | PASLAUGA | Lithuania | defunct | |
| YRG | Air Yugoslavia | YUGAIR | Serbia | defunct; operations continue under Jat Airways | |
| K8 | ZAK | Airlink Zambia | Zambia | Zambia Skyways Limited | |
| ZZM | Agence Nationale des Aerodromes et de la Meteorologie (ANAM) | Ivory Coast | |||
| 4Y | BGA | Airbus Transport International | BELUGA | France | |
| B9 | BGD | Air Bangladesh | AIR BANGLA | Bangladesh | defunct |
| BGF | Aviodetachment-28 | BULGARIAN | Bulgaria | ||
| BGG | Aero BG | AERO BG | Mexico | ||
| BHC | Aerotaxis De La Bahia | BAHIA | Mexico | ||
| BIV | Aviaservice | AVIASERVICE | Georgia | ||
| SZA | Aerolíneas de El Salvador | AESA | El Salvador | defunct | |
| AVY | Aerovaradero, S.A. | AEROVARADERO | Cuba | ||
| AWB | Airways International, Inc. | AIRNAT | United States | ||
| AWK | Airwork | AIRWORK | New Zealand | ||
| AWL | Australian Wetleasing | AUSSIEWORLD | Australia | ||
| AWO | Awood Air Ltd. | AWOOD AIR | Canada | ||
| AWR | Arctic Wings And Rotors Ltd. | ARCTIC WINGS | Canada | ||
| ISM | Auo Airclub AIST-M | STORK | Russia | ||
| AWS | Arab Wings | ARAB WINGS | Jordan | ||
| AWV | Airwave Transport, Inc. | AIRWAVE | Canada | ||
| AWY | Aeroway, S.L. | AEROWEE | Spain | ||
| AXH | Aeromexhaga | AEROMEXHAGA | Mexico | ||
| AXI | Aeron International Airlines, Inc. | AIR FREIGHTER | United States | ||
| AXK | African Express Airways | EXPRESS JET | Kenya | Former IATA code: QA; former ICAO code: AEK; former callsign: AFRICAN EXPRESS | |
| AK | AXM | AirAsia | RED CAP | Malaysia | ICAO code no longer allocated |
| D7 | XAX | AirAsia X | XANADU | Malaysia | |
| DJ | WAJ | AirAsia Japan | WING ASIA | Japan | defunct |
| I5 | IAD | AirAsia India | ARIYA | India | Founded 28. Mar 2013 |
| AXN | Alexandair | ALEXANDROS | Greece | defunct | |
| AXP | Aeromax | AEROMAX SPAIN | Spain | ||
| BNI | Alberni Airways | ALBERNI | Canada | ||
| BNZ | Aerolíneas Bonanza | AERO BONANZA | Mexico | ||
| BOC | Aerobona | AEROBONA | Mexico | ||
| AXR | Axel Rent, S.A. | RENTAXEL | Mexico | ||
| AXS | Altus Airlines | ALTUS | United States | ||
| AXV | AVA Airlines | AVA | Iran | ||
| AXX | Avioimpex A.D.p.o. | IMPEX | Macedonia | defunct | |
| 6V | AXY | Axis Airways | AXIS | France | defunct |
| AYD | Aladia Airlines | AIRLINES ALADIA | Mexico | defunct | |
| AYK | Aykavia Aircompany | Armenia | ICAO code no longer allocated | ||
| AYM | Airman, S.L. | AIRMAN | Spain | ||
| NPT | West Atlantic UK | NEPTUNE | United Kingdom | ||
| GBN | Atlantic Airlines | ATLANTIC GABON | Gabon | ||
| EX | BJK | Atlantic Airlines | BLACKJACK | United States | |
| HHA | Atlantic Airlines de Honduras | ATLANTIC HONDURAS | Honduras | defunct | |
| AYN | Atlantic Airlines, S.A. | ATLANTIC NICARAGUA | Nicaragua | ||
| AYS | Awsaj Aviation Services | Libya | ICAO code no longer allocated | ||
| AYT | Ayeet Aviation & Tourism | AYEET | Israel | ||
| 3G | AYZ | Atlant-Soyuz Airlines | ATLANT-SOYUZ | Russia | defunct |
| AZ | AZA | Alitalia | ALITALIA | Italy | defunct |
| ZE | AZE | Arcus-Air Logistic | ARCUS AIR | Germany | |
| A2 | AZI | Astra Airlines | ASTRA | Greece | |
| AZK | Azalhelikopter | AZALHELICOPTER | Azerbaijan | ||
| AZL | Africa One | SKY AFRICA | Zambia | defunct | |
| AZM | Aerocozumel | AEROCOZUMEL | Mexico | ||
| AZP | Arizona Pacific Airways | ARIZONA PACIFIC | United States | ||
| AZS | Aviacon Zitotrans Air Company | ZITOTRANS | Russia | ||
| AZT | Azimut, S.A. | AZIMUT | Spain | ||
| AZV | Azov Avia Airlines | AZOV AVIA | Ukraine | defunct, Asov-Avia, Aircompany | |
| MHC | Aero Jomacha | AERO JOMACHA | Mexico | ||
| AZY | Arizona Airways, Inc. | ARIZAIR | United States | ||
| AZZ | Azza Transport | AZZA TRANSPORT | Sudan | ||
| NAR | Air Continental Inc | NIGHT AIR | United States | ||
| NAU | Antanik-Air | ANTANIK | Ukraine | ||
| NER | Air Newark | NEWAIR | United States | ||
| NFF | Aircraft Support and Services | Lebanon | ICAO code no longer allocated | ||
| OBA | Aerobanana | AEROBANANA | Mexico | ||
| OBK | Amako Airlines | AMAKO AIR | Nigeria | ||
| R7 | OCA | Aserca Airlines | AROSCA | Venezuela | |
| NFS | Afrique Cargo Service Senegal | Senegal | defunct | ||
| NGC | Angoservice | ANGOSERVICE | Angola | ||
| NGE | Angel Airlines | ANGEL AIR | Thailand | defunct, ICAO code no longer allocated | |
| NGF | Angel Flight America | ANGEL FLIGHT | United States | Renamed Air Charity Network in 2014 [4] | |
| OUL | Air Atonabee | CITY EXPRESS | Canada | defunct | |
| OVA | Aero Nova | AERONOVA | Spain | ||
| XPE | Amira Air | EXPERT | Austria | ||
| XSS | Aero Express Intercontinental | INTER EXPRESS | Mexico | ||
| TLR | Air Libya Tibesti | AIR LIBYA | Libya | ||
| OVC | Aerovic | Ecuador | |||
| RVE | Airventure | AIRVENTURE | Belgium | ||
| RVI | Aero Servicios | AERO SERVICIOS | Mexico | ||
| RVL | Airvallee | AIR VALLEE | Italy | ||
| OVE | Aeromover | AEROMOVER | Mexico | ||
| OVI | Aerovías Ejecutivas | VIAS EJECUTIVAS | Mexico | ||
| PTD | Aero Servicio Pity | PITY | Mexico | ||
| PTE | Aero Copter | AERO-COP | Mexico | ||
| PLL | Air Pal | AIRPAL | Spain | Escuela De Pilots | |
| PLM | Air Pullmantur | PULLMANTUR | Spain | ||
| RX | AEH | Aviaexpress | AVEX | Hungary | defunct |
| PSG | Aviones Para Servirle | SERVIAVIONES | Mexico | ||
| SLU | Avio Sluzba | AVIO SLUZBA | Serbia | ||
| SCU | Air Scorpio | SCORPIO UNIVERS | Bulgaria | ||
| SIP | Air Spirit | AIR SPIRIT | United States | ||
| BMV | Alatau Airlines | OLIGA | Kazakhstan | ||
| GUG | Aviateca | AVIATECA | Guatemala | ||
| PXX | Aroostook Aviation | PINE STATE | United States | ||
| PYC | Aeropycsa | AEROPYCSA | Mexico | ||
| PVK | Association of Private Pilots of Kazakhstan | BORIS | Kazakhstan | ICAO code no longer allocated | |
| BAS | Aero Services | AEROSERV | Barbados | ||
| BBT | Air Bashkortostan | AGYDAL | Russia | defunct | |
| MCY | Ambulance Air Africa | MERCY | South Africa | ||
| MQ | EGF | American Eagle Airlines | EAGLE FLIGHT | United States | Renamed Envoy Air, ICAO Code and Callsign withdrawn in 2014 |
| PUE | Aeropuelche | PUELCHE | Chile | ||
| PUT | Aeroput | Serbia | defunct | ||
| ZS | AZI | Azzurra Air | AZZURRA | Italy | defunct |
| FF | Airshop | Netherlands | |||
| ML | ETC | African Transport Trading and Investment Company | TRANATTICO | Sudan | |
| XCT | Aero Costa Taxi Aéreo | AEROCOSTAXI | Mexico | ||
| VRO | Aerovitro | AEROVITRO | Mexico | ||
| VRI | Aerotaxi Villa Rica | VILLARICA | Mexico | ||
| VEG | Aerovega | AEROVEGA | Mexico | ||
| VVG | Aerovilla | AEROVILLA | Colombia | ||
| VLR | Aerolíneas Villaverde | VILLAVERDE | Mexico | ||
| WI | WIL | Aero Air | WILLIAMETTE | United States | |
| VEJ | Aero Ejecutivos | VENEJECUTIV | Venezuela | ||
| WAB | Aero Industries Inc | WABASH | United States | ||
| VNG | Aero Servicios Vanguardia | VANGUARDIA | Mexico | ||
| VAD | Aero Taxi Los Valles | VALLES | Spain | ||
| VMR | Aero Vilamoura | AERO VILAMOURA | Portugal | ICAO code no longer allocated | |
| VLS | Aero Virel | VIREL | Mexico | ||
| XAA | Aeronautical Radio Inc | ROCKFISH|United States | |||
| VUO | Aerovuelox | AEROVUELOX | Mexico | ||
| VTM | Aeronaves TSM | AERONAVES TSM | Mexico | ||
| VU | VUN | Air Ivoire | AIRIVOIRE | Ivory Coast | defunct |
| BP | BOT | Air Botswana | BOTSWANA | Botswana | |
| XPR | Air-Rep | United States | |||
| XLL | Air Excel | TINGA-TINGA | Tanzania | ||
| VAE | Air Evans | AIR-EVANS | Spain | Ecuela de Pilotos Privados | |
| WHY | Air Sorel | AIR SOREL | Canada | ||
| WDR | Air Net Private Charter | WIND RIDER | United States | ||
| XEC | Air Executive Charter | Germany | |||
| GS | UPA | Air Foyle | FOYLE | United Kingdom | defunct, ICAO code no longer allocated |
| VTY | Air Midwest (Nigeria) | VICTORY | Nigeria | ||
| VT | VTA | Air Tahiti | AIR TAHITI | French Polynesia | |
| 3N | URG | Air Urga | URGA | Ukraine | |
| VDR | Air Vardar | VARDAR | Macedonia | ICAO code in use by another company, call sign no longer allocated | |
| VL | VIM | Air VIA | CRYSTAL | Bulgaria | |
| WLR | Air Walser | AIRWALSER | Italy | ||
| URA | Aircompany Rosavia | ROSAVIA | Ukraine | ||
| XLB | Aircraft Performance Group | United States | |||
| WLA | Airwaves Airlink | AIRLIMITED | Zambia | ||
| XFX | Airways Corporation of New Zealand | AIRCORP | New Zealand | ||
| WAY | Airways | GARONNE | France | ||
| WGS | Airwings oy | AIRWINGS | Finland | ||
| XAK | Airkenya | SUNEXPRESS | Kenya | ||
| WPK | Air-Lift Associates | WOLFPACK | United States | ||
| VAB | Airtrans Ltd | Russia | |||
| URP | ARP 410 Airlines | AIR-ARP | Ukraine | ||
| WPR | Auckland Regional Rescue Helicopter Trust | WESTPAC RESCUE | New Zealand | ||
| URR | Aurora Airlines | AIR AURORA | Slovenia | defunct, ICAO code no longer allocated | |
| UST | Austro Aéreo | AUSTRO AEREO | Ecuador | ||
| WLT | Aviation Partners | WINGLET | United States | ||
| VLV | Avialift Vladivostok | VLADLIFT | Russia | ||
| VME | Aviación Comercial de América | AVIAMERICA | Mexico | ||
| VVA | Aviast Air | IALSI | Russia | defunct | |
| WLV | Aviation North | WOLVERINE | United States | ||
| FK | WTA | Africa West | WEST TOGO | Togo | |
| VNT | Avient Air Zambia | AVIENT | Zambia | ||
| VZR | Aviazur | IAZUR | France | ||
| VID | Aviaprad | AVIAPRAD | Russia | defunct | |
| G2 | VXG | Avirex | AVIREX-GABON | Gabon | |
| VXX | Aviaexpress Aircompany | EXPRESSAVIA | Ukraine | ||
| XAM | AMR Services Corporation | ALLIANCE | United States | ||
| XAO | Airline Operations Services | United States | |||
| VAZ | Airlines 400 | REMONT AIR | Russia | ||
| V8 | VAS | ATRAN Cargo Airlines | ATRAN | Russian Federation | |
| VAM | Ameravia | AMERAVIA | Uruguay | ||
| K6 | KHV | Angkor Air | AIR ANGKOR | Cambodia | |
| VBC | AVB-2004 Ltd | AIR VICTOR | Bulgaria | ||
| XKX | ASECNA | France | |||
| XAT | AT and T Aviation Division | United States | |||
| CAJ | Air Caraibes Atlantique | CAR LINE | France | ||
| CAO | Air China Cargo | AIRCHINA FREIGHT | China | ||
| CBE | Aerovías Caribe | AEROCARIBE | Mexico | ||
| CBO | Aerotaxi del Cabo | TAXI CABO | Mexico | ||
| CBS | Air Columbus | AIR COLUMBUS | Ukraine | ||
| CBV | Aereo Cabo | CABOAEREO | Mexico | ||
| CA | CCA | Air China | AIR CHINA | China | |
| CDA | Aerocardal | CARDAL | Chile | ||
| Q6 | CDP | Aero Condor Peru | CONDOR-PERU | Peru | |
| CDU | Aerotrans | Russia | |||
| CDV | Airline Skol | SKOL | Russia | ||
| CFF | Aerofan | AEROFAN | Spain | ||
| CFR | Africa One | Democratic Republic of the Congo | defunct | ||
| CFV | Aero Calafia | CALAFIA | Mexico | ||
| CGB | Air Cargo Belize | CARGO BELIZE | Belize | ||
| CGV | Aero Clube Do Algarve | CLUBE ALGARVE | Portugal | ||
| CGW | Air Great Wall | CHANGCHENG | China | defunct | |
| CHJ | Aircompany Chaika | AIR CHAIKA | Ukraine | ||
| CHR | Air Charter Services | ZAIRE CHARTER | Democratic Republic of the Congo | ||
| CHV | Air Charter Professionals | CHARTAIR | United States | ||
| CID | Asia Continental Airlines | ACID | Kazakhstan | defunct, ICAO code no longer allocated | |
| 5F | CIR | Arctic Circle Air Service | AIR ARCTIC | United States | defunct 2011 |
| CKL | Aviation Charter Services | CIRCLE CITY | United States | ||
| CLL | Aerovías Castillo | AEROCASTILLO | Mexico | ||
| CLP | Aero Club De Portugal | CLUB PORTUGAL | Portugal | ||
| CMF | Air Care Alliance | COMPASSION | United States | ||
| CNE | Air Toronto | CONNECTOR | Canada | ||
| CNH | Aquila Air | CHENANGO | United States | ||
| CNU | Air Consul | AIR CONSUL | Spain | ||
| CNX | AllCanada Express | CANEX | Canada | defunct | |
| CPF | Airtechservice | TECHSERVICE | Ukraine | defunct | |
| QC | CRD | Air Corridor | AIR CORRIDOR | Mozambique | defunct |
| NV | CRF | Air Central | AIR CENTRAL | Japan | Ceased operations 2010 |
| CRJ | Air Cruzal | AIR CRUZAL | Angola | ||
| CRP | Aerotransportes Corporativos | AEROTRANSCORP | Mexico | ||
| CRQ | Air Creebec | CREE | Canada | ||
| CTA | Aero Charter and Transport | CHAR-TRAN | United States | ||
| CTE | Air Tenglong | TENGLONG | China | ||
| CTR | Aerolíneas Centauro | CENTAURO | Mexico | ||
| CUO | Aerocuahonte | CUAHONTE | Mexico | ||
| CV | CVA | Air Chathams | CHATHAM | New Zealand | |
| CW | CWM | Air Marshall Islands | AIR MARSHALLS | Marshall Islands | |
| CWP | Australian Customs Service | COASTWATCH | Australia | ||
| CYL | Air One Cityliner | CITYLINER | Italy | ||
| CYO | Air Transport | COYOTE | United States | ||
| CYE | Aerocheyenne | AEROCHEYENNE | Mexico | ||
| AH | DAH | Air Algérie | AIR ALGERIE | Algeria | |
| DAP | Aerovías DAP | DAP | Chile | ||
| DBA | Air Alpha | DOUBLE-A | United States | ||
| DBD | Air Niagara Express | AIR NIAGARA | Canada | ||
| DEF | Aviation Defense Service | TIRPA | France | ||
| DEG | Air Service Groningen | DEGGER | Netherlands | ICAO code and call sign no longer allocated | |
| ER | DHL | Astar Air Cargo | D-H-L | United States | defunct, DHL |
| DHM | Archer Aviation | ARCHER | United Kingdom | ICAO code no longer allocated | |
| DIC | Aeromedica | AEROMEDICA | Mexico | ||
| DIN | Aerodin | AERODIN | Mexico | ||
| DJU | Air Djibouti | AIR DJIB | Djibouti | defunct | |
| EN | DLA | Air Dolomiti | DOLOMITI | Italy | |
| DLS | Aero Modelo | AEROMODELO | Mexico | ||
| DLU | Aerolíneas del Sur | DEL SUR | Chile | defunct | |
| DMC | Aerodinamica de Monterrey | DINAMICAMONT | Mexico | ||
| DMI | Aeroservicios Dinamicos | AERODINAMICO | Mexico | ||
| DML | Aerotaxis Dosmil | Mexico | |||
| DNA | Aerodespachos de El Salvador | AERODESPACHOS | El Salvador | ||
| DNC | Aerodynamics Málaga | FLYINGOLIVE | Spain | ||
| DNJ | Aerodynamics Incorporated | DYNAJET | United States | ||
| NM | DRD | Air Madrid | ALADA AIR | Spain | defunct |
| DRM | Airways Flight Training | DARTMOOR | United Kingdom | ||
| DRO | Aeronaves Del Noreste | AERONORESTE | Mexico | ||
| 6R | DRU | Alrosa Air Company | MIRNY | Russia | |
| DSK | Aero Algarve | SKYBANNER | Portugal | ICAO code no longer allocated | |
| DST | Aex Air | DESERT | United States | ||
| EAT | Air Transport | TRANS EUROPE | Slovakia | ||
| EE | EAY | Aero Airlines | REVAL | Estonia | defunct |
| EBC | Aero Ejecutivo De Baja California | CALIXJET | Mexico | ||
| 4F | ECE | Air City | AIRCITY | Germany | |
| ECG | Aero Ejecutivos RCG | EJECTUIVOS RCG | Mexico | ||
| ECL | Aeronáutica Castellana | AERO CASTELLANA | Spain | ||
| ECM | Aerolíneas Comerciales | AERO COMERCIALES | Mexico | ||
| EDA | Aerolineas Nacionales Del Ecuador | ANDES | Ecuador | defunct | |
| EET | Air Este | AESTE | Spain | ||
| EFC | Air Mana | FLIGHT TAXI | France | ||
| EJP | Aeroservicios Ejecutivos Corporativos | EJECCORPORATIVOS | Mexico | ||
| E8 | ELG | Alpi Eagles | ALPI EAGLES | Italy | defunct, ICAO code no longer allocated |
| ALX | ALPI Jets | ALPIJETS | Austria | ||
| END | Arrendadora y Transportadora Aérea | ARRENDADORA | Mexico | ||
| ENW | Aeronaves Del Noroeste | AERONOR | Spain | ||
| EOL | Airailes | EOLE | France | ||
| RF | EOK | Aero K | AEROHANKUK | South Korea | established in May 2016; commenced operations on 15 April 2021 |
| EOM | Aero Ermes | AERO ERMES | Mexico | ||
| EPL | Aero Transportes Empresariales | EMPRESARIALES | Mexico | ||
| EPE | Aero Empresarial | AEROEMPRESARIAL | Mexico | ||
| KY | EQL | Air São Tomé and Príncipe | EQUATORIAL | São Tomé and Príncipe | defunct |
| ERG | Avianergo | AVIANERGO | Russia | defunct | |
| ERI | Aero Servicios Regiomontanos | ASERGIO | Mexico | ||
| ERK | Aerosec | AEROSEC | Chile | ||
| ERM | Aeromaan | EOMAAN | Mexico | ||
| ESB | Aereosaba | AEREOSABA | Mexico | ||
| ESO | Avitat | United Kingdom | |||
| ESU | Aerolíneas Ejecutivas Del Sureste | ALESUR | Mexico | ||
| ESZ | Aeronáutica La Esperanza | ESPERANZA | Mexico | ||
| ETE | Aero Siete | AEROSIETE | Mexico | ||
| EUK | Air Atlanta Europe | SNOWBIRD | United Kingdom | defunct | |
| EVE | Air Evex | SUNBEAM | Germany | ||
| EVR | Aeronautical Academy of Europe | DIANA | Portugal | ||
| E2/E6 | EWE/EWL | Eurowings Europe | EUROPWINGS BLACK PEARL | Austria | |
| EXG | Air Exchange | EXCHANGE | United States | ||
| FAC | Atlantic Helicopters | FAROECOPTER | Denmark | ||
| FAG | Argentine Air Force | FUAER | Argentina | ||
| PC | FAJ | Air Fiji | FIJIAIR | Fiji | defunct |
| FAN | AF-Air International | FANBIRD | Angola | ||
| FBW | Aviation Data Systems | United States | |||
| FCI | Air Carriers | FAST CHECK | United States | ||
| FCO | Aerofrisco | AEROFRISCO | Mexico | ||
| FCU | Alfa 4 | Mexico | |||
| JH | FDA | Fuji Dream Airlines | FUJI DREAM | Japan | |
| FDS | African Medical and Research Foundation | FLYDOC | Kenya | ||
| FGT | Aero Freight | FREIAERO | Mexico | ||
| FIC | Aerosafin | AEROSAFIN | Mexico | ||
| OF | FIF | Air Finland | AIR FINLAND | Finland | |
| FII | Aerodata Flight Inspection | FLIGHT CHECKER | Germany | ICAO code no longer allocated | |
| FIX | Airfix Aviation | AIRFIX | Finland | ||
| FJ | FJI | Fiji Airways | PACIFIC | Fiji | |
| FLD | Air Falcon | Pakistan | |||
| RC | FLI | Atlantic Airways | FAROELINE | Faroe Islands | |
| FLP | Aeroclub Flaps | AEROCLUB FLAPS | Spain | defunct | |
| QH | FLZ | Aero Leasing | AIR FLORIDA | United States | dba Air Florida |
| FMT | Air Fret De Mauritanie | Mauritania | |||
| FNM | Avio Nord | Italy | |||
| FNO | Aeroflota Del Noroeste | RIAZOR | Spain | ||
| FNX | Aero Fenix | AERO FENIX | France | ICAO code no longer allocated | |
| FPY | African Company Airlines | AFRICOMPANY | Democratic Republic of the Congo | Defunct. [9] ICAO code in use by another company.[ citation needed ] | |
| FRJ | Afrijet Airlines | AFRIJET | Nigeria | ||
| FRK | Afrika Aviation Handlers | AFRIFAST | Kenya | ||
| FRQ | Afrique Chart'air | CHARTER AFRIQUE | Cameroon | ||
| FRT | Aerofreight Airlines | Russia | |||
| FST | Aeros Limited | FAST TRACK | United Kingdom | ICAO code no longer allocated | |
| FTC | Air Affaires Tchad | AFFAIRES TCHAD | Chad | ||
| NY | FXI | Air Iceland | FAXI | Iceland | |
| 2P | GAP | Air Philippines | ORIENT PACIFIC | Philippines | |
| GAU | Aerogaucho | AEROGAUCHO | Uruguay | ||
| GBJ | Aero Business Charter | GLOBAL JET | Germany | ||
| GCF | Aeronor | AEROCARTO | Spain | ||
| GCK | Aerogem Cargo | AEROGEM | Ghana | defunct | |
| GFO | Aerovías del Golfo | AEROVIAS GOLFO | Mexico | ||
| GGL | Aeronáutica | GIRA GLOBO | Angola | ||
| ZX | GGN | Air Georgian | GEORGIAN | Canada | |
| GHL | Aviance UK | HANDLING | United Kingdom | Gatwick Handling | |
| GHN | Air Ghana | AIR GHANA | Ghana | ||
| GIL | African International Transport | AFRICAN TRANSPORT | Guinea | ||
| 2U | GIP | Air Guinee Express | FUTURE EXPRESS | Guinea | |
| GIZ | Africa Airlines | AFRILENS | Guinea | ||
| GLL | Air Gemini | TWINS | Angola | ||
| GLT | Aero Charter | GASLIGHT | United States | ||
| GME | Aguilas Mayas Internacional | MAYAN EAGLES | Guatemala | ||
| GMM | Aerotaxis Guamuchil | AEROGUAMUCHIL | Mexico | ||
| GMS | Aeroservicios Gama | SERVICIOS GAMA | Mexico | ||
| 0A | GNT | Amber Air | GINTA | Lithuania | |
| GOA | Alberta Government | ALBERTA | Canada | ||
| GRE | Air Scotland | GREECE AIRWAYS | Greece | ||
| DA | GRG | Air Georgia | AIR GEORGIA | Georgia | |
| GRI | Air Cargo Center | São Tomé and Príncipe | |||
| LL | GRO | Allegro | ALLEGRO | Mexico | defunct (IATA code reallocated) |
| GRR | Agroar - Trabalhos Aéreos | AGROAR | Portugal | ||
| GRX | Aircompany Grodno | GRODNO | Belarus | ||
| GSP | Airlift Alaska | GREEN SPEED | United States | ||
| GSV | Agrocentr-Avia | AGRAV | Kazakhstan | ||
| GTC | Altin Havayolu Tasimaciligi Turizm Ve Ticaret | GOLDEN WINGS | Turkey | ||
| 5Y | GTI | Atlas Air | GIANT | United States | |
| GTP | Aerotaxi Grupo Tampico | GRUPOTAMPICO | Mexico | ||
| GUA | Aerotaxis de Aguascalientes | AGUASCALIENTES | Mexico | ||
| GG | GUY | Air Guyane | GREEN BIRD | French Guiana | |
| GVI | Air Victoria Georgia | IRINA | Georgia | ||
| H9 | HAD | Air d'Ayiti | HAITI AVIA | Haiti | |
| GG | HAH | Air Comores International | AIR COMORES | Comoros | |
| HAT | Air Taxi | TAXI BIRD | France | ||
| HEI | Aerohein | AEROHEIN | Chile | ||
| HGH | Atlantic Air Lift | HIGHER | France | ||
| HID | Aviación Ejecutiva De Hildago | EJECUTIVA HIDALGO | Mexico | ||
| HJA | Air Haiti | AIRHAITI | Haiti | ||
| HD | HLN | Air Holland | ORANGE | Netherlands | defunct |
| HJT | Al Rais Cargo | AL-RAIS CARGO | United Arab Emirates | ||
| HKH | Air-Invest | HAWKHUNGARY | Hungary | ||
| HMA | Air Tahoma | TAHOMA | United States | ICAO code no longer allocated | |
| HMT | Air Nova | HAMILTON | United Kingdom | ICAO code no longer allocated | |
| HOM | Aero Homex | AERO HOMEX | Mexico | ||
| HPO | Almiron Aviation | ALMIRON | Uganda | ||
| HQO | Avinor | Norway | |||
| HYR | Airlink Airways | HIGHFLYER | Ireland | ||
| 8C | HZT | Air Horizon | HORIZON TOGO | Togo | |
| ICM | Air Inter Cameroun | INTER-CAMEROUN | Cameroon | ||
| IFI | Air Lift | HELLAS LIFT | Greece | ||
| IKM | Aero Survey | EASY SHUTTLE | Ghana | Callsign changed from GHANA SURVEY | |
| ILK | Aero Airline | ILEK | Kazakhstan | ||
| IME | Airtime Charters | AIRTIME | United Kingdom | ICAO code no longer allocated | |
| IMN | Aerotaxis Cimarron | TAXI CIMARRON | Mexico | ||
| INA | Aero Internacional | AERO-NACIONAL | Mexico | ||
| ING | Aeroingenieria | AEROINGE | Chile | defunct | |
| INO | Aeroservicios Intergrados de Norte | INTENOR | Mexico | ||
| IPL | Airpull Aviation | IPULL | Spain | ||
| IRD | Arvand Airlines | ARVAND | Iran | ||
| IRH | Atlas Aviation Group | ATLAS AVIA | Iran | ||
| IRW | Aram Airline | ARAM | Iran | ||
| IRX | Aria Tour | ARIA | Iran | ||
| ITE | Aerotaxi S.R.O. | AEROTAXI | Czech Republic | ||
| ITF | Avita-Servicos Aéreos | AIR AVITA | Angola | ||
| ITI | AirSwift | AIRSWIFT | Philippines | ||
| ITO | Aero Citro | AERO CITRO | Mexico | ||
| IVE | Air Executive | COMPANY EXEC | Spain | ||
| IWS | Aviainvest | Russia | |||
| W9 | JAB | Air Bagan | AIR BAGAN | Myanmar | |
| JAD | Aerojal | AEROJAL | Mexico | ||
| JAR | Airlink | AIRLINK | Austria | ||
| JEE | Ambjek Air Services | AMBJEK AIR | Nigeria | ||
| JKH | JETKONTOR AG | JETKONTOR | Germany | ||
| UTX | Avfinity | United States | |||
| JMR | Alexandair | ALEXANDAIR | Canada | ||
| JMX | Air Jamaica Express | JAMAICA EXPRESS | Jamaica | ||
| JOA | Air Swift Aviation | Australia | |||
| JOB | Aerojobeni | JOBENI | Mexico | ||
| IP | JOL | Atyrau Air Ways | EDIL | Kazakhstan | |
| JPR | Aerosmith Aviation | JASPER | United States | ICAO code no longer allocated | |
| JTS | Arrendamiento de Aviones Jets | AVIONESJETS | Mexico | ||
| JUA | Aero Juarez | JUAREZ | Mexico | ||
| QK | JZA | Air Canada Jazz | JAZZ | Canada | |
| KAA | Asia Aero Survey and Consulting Engineers | AASCO | Republic of Korea | ICAO code no longer allocated | |
| KAD | Air Kirovograd | AIR KIROVOGRAD | Ukraine | ||
| KAM | Air Mach | ICO-AIR | Italy | ||
| KAV | Air Kufra | AIRKUFRA | Libya | ||
| KEK | Arkhabay | ARKHABAY | Kazakhstan | ICAO code no longer allocated | |
| KFK | Aero Charter Krifka | KRIFKA AIR | Austria | ||
| KFT | Air Kraft Mir | AIR KRAFT MIR | Uzbekistan | ||
| KGD | Air Concorde | CONCORDE AIR | Bulgaria | ||
| KHH | Alexandria Airlines | Egypt | |||
| KIE | Afit | TWEETY | Germany | ||
| KKB | Air South | KHAKI BLUE | United States | ||
| KK | KKK | Atlasjet | ATLASJET | Turkey | |
| KLB | Air Mali International | TRANS MALI | Mali | ||
| KLZ | Aerokaluz | AEROKALUZ | Mexico | ||
| JS | KOR | Air Koryo | AIR KORYO | Democratic People's Republic of Korea | |
| KOY | Araiavia | ALEKS | Kazakhstan | ||
| KRE | AeroSucre | AEROSUCRE | Colombia | ||
| KRT | Air Kokshetau | KOKTA | Kazakhstan | ICAO code no longer allocated | |
| KSI | Air Kissari | KISSARI | Angola | ||
| KTN | Aeronavigaciya | AERONAVIGACIYA | Ukraine | ||
| KVR | Alliance Avia | KAVAIR | Kazakhstan | ||
| KYC | Av Atlantic | DOLPHIN | United States | ||
| KC | KZR | Air Astana | ASTANALINE | Kazakhstan | |
| LAG | Aviation Legacy | AVILEG | Gambia | ||
| Aerovías De Lagos | AEROLAGOS | Mexico | Was LAG | ||
| LV | LBC | Albanian Airlines | ALBANIAN | Albania | |
| LBI | Albisa | ALBISA | Mexico | ||
| LBW | Albatros Airways | ALBANWAYS | Albania | ||
| LDG | Aerolíneas Aéreas Ejecutivas De Durango | DURANGO | Mexico | ||
| 3S | BOX | Aerologic | GERMAN CARGO | Germany | |
| LDN | Al-Donas Airlines | ALDONAS AIR | Nigeria | ||
| QP | AKJ | Akasa Air | AKASA AIR | India | |
| LDR | Aero Lider | AEROLIDER | Mexico | ||
| LEM | Aleem | Egypt | |||
| LET | Aerolíneas Ejecutivas | MEXEJECUTIV | Mexico | ||
| H7 | LFA | Air Alfa | AIR ALFA | Turkey | |
| LFC | Aero Control Air | LIFE FLIGHT CANADA | Canada | defunct | |
| LGN | Aerolaguna | AEROLAGUNA | Mexico | ||
| LHR | Al Ahram Aviation | AL AHRAM | Egypt | ||
| D4 | LID | Alidaunia | ALIDA | Italy | |
| LIE | Al-Dawood Air | AL-DAWOOD AIR | Nigeria | ||
| LKP | American Aviation | LAKE POWELL | United States | ICAO code no longer allocated | |
| LKS | Airlink Solutions | AIRLIN | Spain | ||
| LKY | Air Solutions | LUCKY | United States | ||
| 9I | LLR | Air India Regional | ALLIED | India | |
| LMA | Aerolima | AEROLIMA | Mexico | ||
| LML | Alamia Air | ALAMIA AIR | Libya | ICAO code no longer allocated | |
| LMP | Air Plus Argentina | AIR FLIGHT | Argentina | ||
| LMT | Almaty Aviation | ALMATY | Kazakhstan | ||
| LMX | Aerolíneas Mexicanas J S | LINEAS MEXICANAS | Mexico | ||
| LMY | Air Almaty | AGLEB | Kazakhstan | ||
| LMZ | Air Almaty ZK | ALUNK | Kazakhstan | ||
| XL | LNE | Aerolane | AEROLANE | Ecuador | Líneas Aéreas Nacionales Del Ecuador |
| 4Z | LNK | Airlink | LINK | South Africa | |
| LNT | Aerolíneas Internacionales | LINEAINT | Mexico | ||
| LOK | Alok Air | ALOK AIR | Sudan | ||
| LOU | Air Saint Louis | AIR SAINTLOUIS | Senegal | ||
| FL | LPA | Air Leap | LEAP | Sweden | [ citation needed ] |
| LPC | Alpine Aviation | NETSTAR | South Africa | ||
| A6 | LPV | Air Alps Aviation | ALPAV | Austria | |
| LRO | Alrosa-Avia | ALROSA | Russia | ||
| LRW | Al Rida Airways | AL RIDA | Mauritania | ||
| LSK | Aurela | AURELA | Lithuania | ||
| LSM | Aerobusinessservice | Russia | defunct | ||
| LSR | Alsair | ALSAIR | France | ||
| LTI | Aerotaxis Latinoamericanos | LATINO | Mexico | ||
| LUC | Albinati Aeronautics | ALBINATI | Switzerland | ||
| TD | LUR | Atlantis European Airways | ATLANTIS | Armenia | defunct |
| LVN | Aliven | ALIVEN | Italy | ||
| LVR | Aviavilsa | AVIAVILSA | Lithuania | ||
| L8 | LXG | Air Luxor GB | LUXOR GOLF | Guinea-Bissau | |
| LK | LXR | Air Luxor | AIRLUXOR | Portugal | ICAO code no longer allocated |
| LYT | Apatas Air | APATAS | Lithuania | ||
| LZP | Air Ban | DOC AIR | Bulgaria | ||
| LZR | Air Lazur | LAZUR BEE-GEE | Bulgaria | ||
| MAM | Aeródromo De La Mancha | AEROMAN | Spain | ||
| MK | MAU | Air Mauritius | AIRMAURITIUS | Mauritius | |
| MBA | Avag Air | AVAG AIR | Austria | ||
| MBB | Air Manas | AIR MANAS | Kyrgyzstan | ||
| MBC | Airjet Exploracao Aerea de Carga | MABECO | Angola | ||
| MBV | Aeriantur-M | AEREM | Moldova | defunct | |
| MCB | Air Mercia | WESTMID | United Kingdom | ||
| MCD | Air Medical | AIR MED | United Kingdom | ||
| MCO | Aerolíneas Marcos | MARCOS | Mexico | ||
| MDC | Atlantic Aero and Mid-Atlantic Freight | NIGHT SHIP | United States | ||
| MD | MDG | Air Madagascar | AIR MADAGASCAR | Madagascar | |
| MDX | Aerosud Charter | MEDAIR | South Africa | ||
| MEF | Air Meridan | EMPENNAGE | Nigeria | ||
| MFL | Aero McFly | MCFLY | Mexico | ||
| MGE | Asia Pacific Airlines | MAGELLAN | United States | ||
| MGS | Aeromagar | AEROMAGAR | Mexico | ||
| MIE | Aero Premier De Mexico | AEROPREMIER | Mexico | ||
| 9U | MLD | Air Moldova | AIR MOLDOVA | Moldova | |
| MLF | Amal Airlines | AMAL | Djibouti | ||
| L9 | MLI | Air Mali | AIR MALI | Mali | defunct |
| MLN | Air Madeleine | AIR MADELEINE | Canada | ||
| MMC | Aermarche | AERMARCHE | Italy | ||
| MMD | Air Alsie | MERMAID | Denmark | ||
| MMM | Aviation Company Meridian | AVIAMERIDIAN | Russia | ||
| MMP | AMP Incorporated | AMP-INC | United States | ||
| MMX | Airmax | PERUMAX | Peru | ||
| MNE | Aerolíneas Amanecer | AEROAMANECER | Mexico | ||
| MNG | Aero Mongolia | AERO MONGOLIA | Mongolia | ||
| MOC | Air Monarch Cargo | MONARCH CARGO | Mexico | ||
| MOP | Aeropublicitaria De Angola | PUBLICITARIA | Angola | ||
| MOR | Aerolíneas De Morelia | AEROMORELIA | Mexico | ||
| A7 | MPD | Air Plus Comet | RED COMET | Spain | |
| QO | MPX | Aeromexpress | AEROMEXPRESS | Mexico | |
| MQT | Air ITM | MUSKETEER | France | ||
| MRL | Aeromorelos | AEROMORELOS | Mexico | ||
| MRM | Aerocharter | MARITIME | Canada | ||
| MR | MRT | Air Mauritanie | MIKE ROMEO | Mauritania | |
| SM | MSC | Air Cairo | AIR CAIRO | Egypt | |
| MSK | Air Sport | AIR SPORT | Bulgaria | ||
| MSM | Aeromas | AEROMAS EXPRESS | Uruguay | ||
| MSO | Aerolíneas Mesoamericanas | MESO AMERICANAS | Mexico | ||
| MSV | Aero-Kamov | AERAFKAM | Russia | ||
| MTB | Aerotaxis Metropolitanos | AEROMETROPOLIS | Mexico | ||
| MTE | Aeromet Línea Aérea | AEROMET | Chile | defunct | |
| MTK | Air Metack | AIRMETACK | Angola | ||
| MTY | Air Montegomery | MONTY | United Kingdom | ICAO code no longer allocated | |
| MXO | Aerotaxi Mexicano | MAXAERO | Mexico | ||
| MYS | Aero Yaqui Mayo | AERO YAQUI | Mexico | ||
| MZK | AVC Airlines | Japan | |||
| MZL | Aerovías Montes Azules | MONTES AZULES | Mexico | ||
| 2V* | Amtrak | United States | Train services only | ||
| F4 | NBK | Albarka Air | AL-AIR | Nigeria | |
| NEL | Aero Servicios de Nuevo Laredo | AEROLAREDO | Mexico | ||
| NGV | Angoavia | ANGOAVIA | Angola | ||
| NID | Aeroni | AERONI | Mexico | ||
| NIE | Aeroejecutiva Nieto | AERONIETO | Mexico | ||
| AJ | NIG | Aero Contractors | AEROLINE | Nigeria | |
| NKZ | Aerokuzbass | NOVOKUZNETSK | Russia | ||
| NRE | Aviones Are | AVIONES ARE | Mexico | ||
| NRS | Atlantic Richfield Company | NORTH SLOPE | United States | ||
| NSO | Aerolíneas Sosa | SOSA | Honduras | ||
| NTD | Aero Norte | Mexico | |||
| NTV | Air Inter Ivoire | INTER-IVOIRE | Ivory Coast | ||
| NUL | Aeroservicios De Nuevo Leon | SERVICIOS NUEVOLEON | Mexico | ||
| NVI | Avial NV Aviation Company | NEW AVIAL | Russia | ||
| NWG | Airwing | NORWING | Norway | ||
| NXA | Air Next | BLUE-DOLPHIN | Japan | ||
| OAO | Arkhangelsk 2 Aviation Division | DVINA | Russia | ||
| OGI | Aerogisa | AEROGISA | Mexico | ||
| OLV | Aerolíneas Olve | OLVE | Mexico | ||
| OMG | Aeromega | OMEGA | United Kingdom | ||
| ONR | Air One Nine | EDER | Libya | ICAO code no longer allocated | |
| ONT | Air Ontario | ONTARIO | Canada | ||
| ORP | Aerocorp | CORPSA | Mexico | IATA changed to RCP; callsign changed to AEROCORPSA | |
| OSN | Aerosan | AEROSAN | Mexico | ||
| OSO | Aviapartner Limited Company | Russia | |||
| PAJ | Aliparma | ALIPARMA | Italy | ||
| PBT | Air Parabet | PARABET | Bangladesh | ||
| 8Y | PBU | Air Burundi | AIR-BURUNDI | Burundi | |
| PCG | Aeropostal Cargo de Mexico | POSTAL CARGO | Mexico | ||
| PCK | Air Pack Express | AIRPACK EXPRESS | Spain | ||
| PCS | Air Palace | AIR PALACE | Mexico | ||
| OT | PEL | Aeropelican Air Services | PELICAN | Australia | |
| PEV | Peoples Vienna Line | PEOPLES | Austria | ||
| PFI | Aerolíneas Chihuahua | PACIFICO CHIHUAHUA | Mexico | ||
| PFT | Air Cargo Express International | PROFREIGHT | United States | ||
| PHR | Al Farana Airline | PHARAOH | Egypt | ||
| PHW | Ave.com | PHOENIX SHARJAH | United Arab Emirates | ICAO code no longer allocated | |
| PIE | Air South West | PIRATE | United Kingdom | ||
| PIF | Aeroservicios California Pacifico | AEROCALPA | Mexico | ||
| PKA | AST Pakistan Airways | PAKISTAN AIRWAY | Pakistan | ||
| PNL | Aero Personal | AEROPERSONAL | Mexico | ||
| PNU | Aero Servicios Platinum | AERO PLATINUM | Mexico | ||
| POY | Apoyo Aéreo | APOYO AEREO | Mexico | ||
| PRT | Atlantic Coast Jet | PATRIOT | United States | ||
| AD | PRZ | Air Paradise International | RADISAIR | Indonesia | Defunct 2005 |
| PZA | Aéreo Taxi Paraza | AEREO PARAZA | Mexico | ||
| QD | QCL | Air Class Líneas Aéreas | ACLA | Uruguay | |
| QEA | Aviation Consultancy Office | Australia | |||
| QAT | Aero Taxi | AIR QUASAR | Canada | defunct | |
| QKC | Aero Taxi Aviation | QUAKER CITY | United States | ||
| QLA | Aviation Quebec Labrador | QUEBEC LABRADOR | Canada | ||
| QS | QSC | African Safari Airways | ZEBRA | Kenya | |
| QUI | Aero Quimmco | QUIMMCO | Mexico | ||
| RAD | Alada | AIR ALADA | Angola | ||
| RAI | Aerotur Air | DIASA | Kazakhstan | ||
| RAP | Air Center Helicopters | RAPTOR | United States | ||
| RBE | Aur Rum Benin | RUM BENIN | Benin | ||
| RBJ | Aeroserivios Del Bajio | AEROBAJIO | Mexico | ||
| 4Y | RBU | Airbus France | AIRBUS FRANCE | France | |
| RBV | Air Roberval | AIR ROBERVAL | Canada | ||
AG | ARU | Aruba Airlines | ARUBA | Aruba | |
| RCC | Air Charters Eelde | RACER | Netherlands | ICAO code and call sign no longer allocated | |
| RCE | Aerocer | AEROCER | Mexico | ||
| RCF | Aeroflot-Cargo | AEROFLOT-CARGO | Russia | ||
| MC | RCH | Air Mobility Command | REACH | United States | United States Air Force |
| RCI | Air Cassai | AIR CASSAI | Angola | ||
| RCO | Aero Renta De Coahuila | AEROCOAHUILA | Mexico | ||
| RCP | Aerocorp | AEROCORPSA | Mexico | ||
| RCQ | Aerolíneas Regionales | REGIONAL CARGO | Mexico | ||
| RCU | Atlantic S.L. | AIR COURIER | Spain | ||
| RCX | Air Service Center | SERVICE CENTER | Italy | ||
| RDM | Air Ada | AIR ADA | Mauritania | ||
| RE | REA | Aer Arann | AER ARANN | Ireland | |
| REN | Aero-Rent | AERORENT | Mexico | ||
| RES | Australian Maritime Safety Authority | RESCUE | Australia | ||
| UU | REU | Air Austral | REUNION | France | |
| REY | Aero-Rey | AEROREY | Mexico | ||
| RFC | Aero Africa | AERO AFRICA | Eswatini | ||
| ZP | AZP | Amaszonas Paraguay | GUARANI | Paraguay | |
| RFD | Aerotransportes Rafilher | RAFHILER | Mexico | ||
| RGO | Argo | ARGOS | Dominican Republic | ||
| RGR | Avior Regional | AVIOR REGIONAL | Venezuela | 2014 [1] | |
| RGT | Airbourne School of Flying | AIRGOAT | United Kingdom | ICAO code no longer allocated | |
| RHL | Air Archipels | ARCHIPELS | France | ||
| RIF | Aviation Ministry of the Interior of the Russian Federation | INTERMIN AVIA | Russian Federation | ||
| RIS | Aeris Gestión | AERIS | Spain | ||
| 6K | RIT | Asian Spirit | ASIAN SPIRIT | Philippines | |
| RJS | Aeroservicios Jet | ASERJET | Mexico | ||
| RKA | Air Afrique | AIRAFRIC | Ivory Coast | ||
| A5 | RLA | Airlinair | AIRLINAIR | France | |
| NZ | RLK | Air Nelson | NELSON | New Zealand | defunct |
| RLL | Air Leone | AEROLEONE | Sierra Leone | ||
| QL | RLN | Aero Lanka | AERO LANKA | Sri Lanka | |
| RLZ | Air Alize | ALIZE | France | ||
| RMD | Air Amder | AIR AMDER | Mauritania | ||
| R3 | RME | Armenian Airlines | ARMENIAN | Armenia | defunct |
| MV | RML | Air Mediterranean | HELLASMED | Greece | |
| RMO | Arm-Aero | ARM-AERO | Armenia | ||
| RMX | Air Max | AEROMAX | Bulgaria | ||
| 2O | RNE | Air Salone | AIR SALONE | Sierra Leone | |
| RNM | Aeronem Air Cargo | AEROMNEM | Ecuador | ||
| RNR | Air Cargo Masters | RUNNER | United States | ||
| U8 | RNV | Armavia | ARMAVIA | Armenia | defunct, ICAO code no longer allocated |
| ROE | Aeroeste | ESTE-BOLIVIA | Bolivia | ||
| ROH | Aero Gen | AEROGEN | Mexico | ||
| ROI | Avior Airlines | AVIOR | Venezuela | ||
| ROL | Aeroel Airways | AEROEL | Israel | ICAO code no longer allocated | |
| BQ | ROM | Aeromar Lineas Aereas Dominicanas | BRAVO QUEBEC | Dominican Republic | defunct |
| ROO | Aeroitalia | AEROITALIA | Italy | defunct | |
| ROD | Aerodan | AERODAN | Mexico | ||
| P5 | RPB | AeroRepública | AEROREPUBLICA | Colombia | |
| RPC | Aerolíneas Del Pacífico | AEROPACSA | Ecuador | ||
| RRC | Aero Roca | AEROROCA | Mexico | ||
| RRE | Aerotransportes Internacionales De Torreon | AERO TORREON | Mexico | ||
| RSC | Aerolíneas Ejecutivas Tarascas | TARASCAS | Mexico | ||
| E4 | RSO | Aero Asia International | AERO ASIA | Pakistan | defunct |
| BF | RSR | Aero-Service | CONGOSERV | Republic of the Congo | |
| 5L | RSU | AeroSur | AEROSUR | Bolivia | |
| RTE | Aeronorte | LUZAVIA | Portugal | ICAO code no longer allocated | |
| RTH | Artis | ARTHELICO | France | ||
| RTO | Arhabaev Tourism Airlines | ARTOAIR | Kazakhstan | ||
| RTQ | Air Turquoise | TURQUOISE | France | ||
| RTU | Aerotucan | AEROTUCAN | Mexico | ||
| RUD | Air Anastasia | ANASTASIA | Ukraine | ||
| RUM | Air Rum | AIR RUM | Sierra Leone | ||
| RVP | Air VIP | AEROVIP | Portugal | ||
| RVT | Aircompany Veteran | AIR-VET | Armenia | ||
| RWB | Alliance Express Rwanda | Rwanda | Formerly Air Rwanda, revived as RwandAir after the Rwandan Genocide | ||
| RWC | Arrow Ecuador Arrowec | ARROWEC | Ecuador | ||
| RWY | Aerogroup 98 Limited | TYNWALD | United Kingdom | ICAO code no longer allocated | |
| RXT | Aeroxtra | AERO-EXTRA | Mexico | ||
| RWS | Air Whitsunday | Australia | |||
| RZL | Aero Zambia | AERO ZAMBIA | Zambia | ||
| RZN | Aero Zano | ZANO | Mexico | ||
| RZZ | Anoka Air Charter | RED ZONE | United States | ||
| SBH | Aerosaab | AEROSAAB | Mexico | ||
| SCD | Associated Aviation | ASSOCIATED | Nigeria | ||
| SCM | American Jet International | SCREAMER | United States | ||
| EX | SDO | Air Santo Domingo | AERO DOMINGO | Dominican Republic | |
| SDP | Aero Sudpacifico | SUDPACIFICO | Mexico | ||
| SEF | Aero Servicios Ejecutivas Del Pacifico | SERVIPACIFICO | Mexico | ||
| JR | SER | Aero California | AEROCALIFORNIA | Mexico | |
| SGV | Aerosegovia | SEGOVIA | Nicaragua | ||
| SHH | Airshare Holdings | AIRSHARE | United Kingdom | ICAO code no longer allocated | |
| SIY | Aerosiyusa | SIYUSA | Mexico | ||
| SIZ | Aero Silza | AEROSILZA | Mexico | ||
| SJN | Air San Juan | SAN JUAN | United States | ||
| SKP | Aero-North Aviation Services | SKIPPER | Canada | defunct | |
| SMI | Aero Sami | SAMI | Mexico | ||
| Z3 | SMJ | Avient Aviation | AVAVIA | Zimbabwe | |
| SOD | Aerolíneas Sol | ALSOL | Mexico | ||
| SOE | Air Soleil | AIR SOLEIL | Mauritania | ||
| SOG | Aero Soga | AEROSOGA | Guinea-Bissau | defunct | |
| SPD | Airspeed Aviation | SPEEDLINE | Canada | ICAO code no longer allocated | |
| M3 | SPJ | Air Service | AIR SKOPJE | Macedonia | |
| SPO | Aeroservicios Ejecutivos Del Pacifico | EJECTUIV PACIFICO | Mexico | ||
| SPY | Asian Aerospace Service | THAI SPACE | Thailand | ||
| SPZ | Airworld | SPEED SERVICE | South Africa | ||
| SQR | Alsaqer Aviation | ALSAQER AVIATION | Libya | ICAO code no longer allocated | |
| SRI | Air Safaris and Services | AIRSAFARI | New Zealand | ||
| SRV | Aero Servicio Corporativo | SERVICORP | Mexico | ||
| SSL | Air Sultan | SIERRA SULTAN | Sierra Leone | ||
| SSM | Aero 1 Pro-Jet | RAPID | Canada | defunct | |
| SSN | Airquarius Air Charter | SUNSTREAM | South Africa | ICAO code no longer allocated | |
| STK | Aeropac | SAT PAK | United States | ||
| STT | Air St. Thomas | PARADISE | United States | ||
| SUE | Aerolíneas Del Sureste | AEROSURESTE | Mexico | ||
| 8D* | SUW | Astair | Russian Federation | Name changed to Interavia Airlines | |
| SUY | Aerial Surveys (1980) Limited | SURVEY | New Zealand | ||
| GM | SVK | Air Slovakia | SLOVAKIA | Slovakia | ICAO code no longer allocated |
| R3 | SYL | Aircompany Yakutia | AIR YAKUTIA | Russia | |
| SYT | Aerosud Aviation | SKYTRACK | South Africa | ||
| HC | SZN | Air Senegal | AIR SENEGAL | Senegal | |
| TAA | Aeroservicios de La Costa | AERO COSTA | Mexico | ||
| VW | TAO | Aeromar | TRANS-AEROMAR | Mexico | |
| TBL | Aerotrebol | AEROTREBOL | Mexico | ||
| TBO | Aero Taxi de Los Cabos | AERO CABOS | Mexico | ||
| JY | TCI | Air Turks and Caicos | KERRMONT | Turks and Caicos Islands | ICAO code no longer allocated |
| TCO | Aerotranscolombina de Carga | TRANSCOLOMBIA | Colombia | ||
| TDG | Air Cargo Express | TURBO DOG | United States | ||
| TDT | Atlas Helicopters | TRIDENT | United Kingdom | ||
| TDY | Air Today | AIR TODAY | United States | ||
| TED | Aero Servicios Azteca | AEROAZTECA | Mexico | ||
| TIR | Antair | ANTAIR | Mexico | ||
| TLD | Aereo Taxi Autlan | AEREO AUTLAN | Mexico | ||
| TLE | Aero Util | AEROUTIL | Mexico | ||
| TLU | Aero Toluca Internactional | AEROTOLUCA | Mexico | ||
| TME | Aero Taxi del Centro de Mexico | TAXICENTRO | Mexico | ||
| TOC | Aerotropical | TROPICMEX | Mexico | ||
| TOH | Air Tomisko | TOMISKO CARGO | Serbia | ||
| CG | TOK | Airlines PNG | BALUS | Papua New Guinea | |
| TON | Aero Tonala | AEROTONALA | Mexico | ||
| TPB | Aero Tropical | AERO TROPICAL | Angola | ||
| TY | TPC | Air Calédonie | AIRCAL | France | |
| TPK | Air Horizon | TCHAD-HORIZON | Chad | ||
| TPO | Aero Taxi del Potosi | TAXI-POTOSI | Mexico | ||
| TQS | Aeroturquesa | AEROTURQUESA | Mexico | ||
| TRH | Airmark Aviation | TRANSTAR | United States | ||
| FL | TRS | AirTran Airways | CITRUS | United States | defunct, last flight 12/30/2014, now part of Southwest Airlines |
| TS | TSC | Air Transat | AIR TRANSAT | Canada | |
| TSQ | airtransse | AIRTRA | Japan | ||
| TTB | Aerolíneas Turísticas del Caribe | AERO TURISTICAS | Mexico | ||
| TTE | Avcenter | TETON | United States | ||
| TUN | Air Tungaru | TUNGARU | Kiribati | defunct | |
| EC | TWN | Avialeasing Aviation Company | TWINARROW | Uzbekistan | |
| TXD | Aerotaxis del Noroeste | TAXI OESTE | Mexico | ||
| TXF | Aerotaxis Alfe | ALFE | Mexico | ||
| TXI | Aereotaxis | AEREOTAXIS | Mexico | ||
| TZA | Aero Tomza | AERO TOMZA | Mexico | ||
| TZT | Air Zambezi | ZAMBEZI | Zimbabwe | ||
| UAG | Afra Airlines | AFRALINE | Ghana | ||
| UAR | Aerostar Airlines | AEROSTAR | Ukraine | ||
| UCK | Air Division of the Eastern Kazakhstan Region | GALETA | Kazakhstan | ||
| U7 | UGA | Air Uganda | UGANDA | Uganda | |
| UED | Air LA | AIR L-A | United States | ||
| 6U | UKR | Air Ukraine | AIR UKRAINE | Ukraine | |
| UMB | Air Umbria | AIR UMBRIA | Italy | ||
| UND | Atuneros Unidos de California | ATUNEROS UNIDOS | Mexico | ||
| USC | AirNet Express | STAR CHECK | United States | Renamed from US Check Airlines | |
| VNR | Avantair | AVANTAIR | United States | defunct | |
| VTG | Aviação Transportes Aéreos e Cargas | ATACARGO | Angola | ||
| WAS | Air-Watania | Iraq | |||
| AAJ | Alfa Airlines | ALFA SUDAN | Sudan | ||
| KO | AER | Alaska Central Express | ACE AIR | United States | |
| AAK | Alaska Island Air | ALASKA ISLAND | United States | ||
| KH | AAH | Aloha Air Cargo | ALOHA | United States | |
| AQ | AAH | Aloha Airlines | ALOHA | United States | defunct; former IATA code: TS |
| AA | AAL | American Airlines | AMERICAN | United States | |
| XFS | American Flight Service Systems | United States | |||
| XMG | AMS Group | Russia | |||
| WD* | AAN | Amsterdam Airlines | AMSTEL | Netherlands | Former IATA code: FH*. ICAO code and call sign no longer allocated |
| ABI | Antigua and Barbuda Airways | Anair | Antigua and Barbuda | defunct | |
| HO | DJA | Antinea Airlines | ANTINEA | Algeria | defunct |
| EDY | Apollo Air Service | STOBART | United Kingdom | Was VLL Limited | |
| SRY | As-Aero | Armenia | |||
| OZ | AAR | Asiana Airlines | ASIANA | South Korea | |
| XXX | ASL (Air Service Liege) | Belgium | |||
| AG | ABR | ASL Airlines Ireland | CONTRACT | Ireland | Former IATA Code: AG; former names: Hunting Air Cargo Airlines, Air Contractors |
| XJA | Assistance Aeroportuaire de L'Aeroport de Paris | France | |||
| AAE | Astec Air East | AIR EAST | United States | defunct | |
| 8V | ACP | Astral Aviation | ASTRAL CARGO | Kenya | |
| AAP | Astro Air International | ASTRO AIR | Philippines | defunct | |
| ATT | Attawasol Airlines | ATTAWASOL AIR | Libya | ||
| XM | XME | Australian airExpress | AUS-CARGO | Australia | |
| AO | AUZ | Australian Airlines | AUSTRALIAN | Australia | Subsidiary merged with Qantas |
| VAI | Avalair | AIR AVALAIR | Serbia | ||
| XP | VXP | Avelo Airlines | AVELO | United States | Former ICAO code: CXP; former names: Casino Express Airlines, Xtra Airways |
| VE | AVE | Avensa | AVENSA | Venezuela | defunct |
| VRT | Averitt Air Charter | AVERITT | United States | ||
| VSC | AVESCA | AVESCA | Colombia | defunct | |
| AJF | Avia Consult Flugbetriebs | AVIACONSULT | Austria | ||
| VTT | Avia Trans Air Transport | VIATRANSPORT | Sudan | ||
| 6A | CHP | Aviacsa | AVIACSA | Mexico | |
| AV | AVA | Avianca | AVIANCA | Colombia | |
| A0 | MCJ | Avianca Argentina | JETMAC | Argentina | Owned by Synergy Group |
| O6 | ONE | Avianca Brasil | OCEAN AIR | Brazil | Owned by Synergy Group |
| 2K | GLG | Avianca Ecuador | GALAPAGOS | Ecuador | Aerolíneas Galápagos SA |
| XAV | Aviaprom Enterprises | AVIAPROM | Russia | ||
| AVB | Aviation Beauport | BEAUPAIR | United Kingdom | ||
| AVQ | Aviation Services, Inc. | AQUILINE | United States | ||
| ACJ | Avicon | AVICHARTER | Kenya | ||
| VSR | Aviostart AS | AVIOSTART | Bulgaria | ||
| V5 | VLI | Avolar Aerolíneas | AEROVOLAR | Mexico | defunct |
| VSA | Avstar Aviation | STARBIRD | South Africa | ||
| AD | AZU | Azul Linhas Aéreas Brasileiras | Azul | Brazil | |