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| 1Time Airline | 1T | RNX | NEXTIME | South Africa | Y |
|---|---|---|---|---|---|
| 40-Mile Air | Q5 | MLA | MILE-AIR | United States | Y |
| Airlink Zambia | K8 | ZAK | Zambia | N | |
| Aban Air | K5 | ABE | ABAN | Iran | Y |
| Abelag Aviation | W9 | AAB | ABG | Belgium | N |
| ABSA - Aerolinhas Brasileiras | M3 | TUS | ABSA Cargo | Brazil | Y |
| Abu Dhabi Amiri Flight | MO | AUH | SULTAN | United Arab Emirates | Y |
| ABX Air | GB | ABX | ABEX | United States | N |
| Access Air | ZA | CYD | CYCLONE | United States | Y |
| Ada Air | ZY | ADE | ADA AIR | Albania | Y |
| Adam Air | KI | DHI | ADAM SKY | Indonesia | Y |
| ADC Airlines | Z7 | ADK | ADCO | Nigeria | N |
| Adria Airways | JP | ADR | ADRIA | Slovenia | Y |
| Aegean Airlines | A3 | AEE | AEGEAN | Greece | Y |
| Aer Arann | RE | REA | AER ARANN | Ireland | Y |
| Aer Lingus | EI | EIN | SHAMROCK | Ireland | Y |
| Aero-Charter Ukraine | DW | UCR | CHARTER UKRAINE | Ukraine | N |
| Aero-Service | BF | RSR | CONGOSERV | Republic of the Congo | Y |
| Aero-Tropics Air Services | HC | ATI | Australia | N | |
| Aero 2000 | 4M | DSM | LAN AR | Argentina | Y |
| Aero Airlines | EE | EAY | REVAL | Estonia | N |
| Aero Asia International | E4 | RSO | AERO ASIA | Pakistan | N |
| Aero Benin | EM | AEB | AEROBEN | Benin | Y |
| Aero California | JR | SER | AEROCALIFORNIA | Mexico | N |
| Aerocondor | 2B | ARD | AEROCONDOR | Portugal | Y |
| Aero Condor Peru | Q6 | CDP | CONDOR-PERU | Peru | Y |
| Aero Contractors | AJ | NIG | AEROLINE | Nigeria | Y |
| Aero Flight | GV | ARF | Aero Fox | Germany | Y |
| Aeroflot-Don | D9 | DNV | DONAVIA | Russia | Y |
| Aeroflot-Nord | 5N | AUL | DVINA | Russia | Y |
| Aeroflot Russian Airlines | SU | AFL | AEROFLOT | Russia | Y |
| Aerolane | XL | LNE | LAN ECUADOR | Ecuador | Y |
| Aero Lanka | QL | RLN | AERO LANKA | Sri Lanka | Y |
| Aerolineas Argentinas | AR | ARG | ARGENTINA | Argentina | Y |
| Aerolineas Galapagos (Aerogal) | 2K | GLG | AEROGAL | Ecuador | Y |
| Aeroline GmbH | 7E | AWU | SYLT-AIR | Germany | Y |
| Aerolitoral | 5D | SLI | COSTERA | Mexico | Y |
| Aerom | AM | AMX | AEROMEXICO | Mexico | Y |
| Aeromar | BQ | ROM | BRAVO QUEBEC | Dominican Republic | N |
| Aeromar | VW | TAO | TRANS-AEROMAR | Mexico | Y |
| Aeromexpress | QO | MPX | AEROMEXPRESS | Mexico | N |
| Aeromist-Kharkiv | HT | AHW | AEROMIST | Ukraine | N |
| Aeropelican Air Services | OT | PEL | PELICAN | Australia | Y |
| Aeroper | PL | PLI | Aeroperu | Peru | Y |
| AeroRep | P5 | RPB | AEROREPUBLICA | Colombia | Y |
| Aero Services Executive | W4 | BES | BIRD EXPRESS | France | N |
| Aerosur | 5L | RSU | AEROSUR | Bolivia | Y |
| Aerosvit Airlines | VV | AEW | AEROSVIT | Ukraine | Y |
| Aero VIP | 2D | AOG | AVIP | Argentina | N |
| African Safari Airways | QS | QSC | ZEBRA | Kenya | N |
| Africa West | FK | WTA | WEST TOGO | Togo | Y |
| Afrinat International Airlines | Q9 | AFU | Gambia | N | |
| Afriqiyah Airways | 8U | AAW | AFRIQIYAH | Libya | Y |
| Aigle Azur | ZI | AAF | AIGLE AZUR | France | Y |
| Air Afrique | RK | RKA | AIRAFRIC | Ivory Coast | Y |
| Air Alg | AH | DAH | AIR ALGERIE | Algeria | Y |
| Air Alpha Greenland | GD | AHA | AIR ALPHA | Denmark | N |
| Air Alps Aviation | A6 | LPV | ALPAV | Austria | N |
| Air Arabia | G9 | ABY | ARABIA | United Arab Emirates | Y |
| Air Armenia | QN | ARR | AIR ARMENIA | Armenia | N |
| AirAsia | AK | AXM | ASIAN EXPRESS | Malaysia | Y |
| AirAsia X | D7 | XAX | XANADU | Malaysia | Y |
| Air Astana | KC | KZR | ASTANALINE | Kazakhstan | Y |
| Air Atlanta Icelandic | CC | ABD | ATLANTA | Iceland | Y |
| Air Atlantique | KI | AAG | ATLANTIC | United Kingdom | N |
| Air Austral | UU | REU | REUNION | France | Y |
| Air Bagan | W9 | JAB | AIR BAGAN | Myanmar | Y |
| Air Baltic | BT | BTI | AIRBALTIC | Latvia | Y |
| Air Bangladesh | B9 | BGD | AIR BANGLA | Bangladesh | Y |
| Air Berlin | AB | BER | AIR BERLIN | Germany | Y |
| Airblue | ED | ABQ | PAKBLUE | Pakistan | Y |
| Airborne Express | GB | ABX | ABEX | United States | N |
| Air Bosna | JA | BON | AIR BOSNA | Bosnia and Herzegovina | Y |
| Air Botswana | BP | BOT | BOTSWANA | Botswana | Y |
| Air Bourbon | ZB | BUB | BOURBON | Reunion | Y |
| AirBridge Cargo | RU | ABW | AIRBRIDGE CARGO | Russia | N |
| Air Burkina | 2J | VBW | BURKINA | Burkina Faso | Y |
| Air Burundi | 8Y | PBU | AIR-BURUNDI | Burundi | N |
| Airbus France | 4Y | RBU | AIRBUS FRANCE | France | N |
| Airbus Industrie | AP | AIB | AIRBUS INDUSTRIE | France | N |
| Air Cal | TY | TPC | AIRCAL | France | N |
| Air Caledonie International | SB | ACI | AIRCALIN | France | Y |
| Air Canada | AC | ACA | AIR CANADA | Canada | Y |
| Air Canada Jazz | QK | JZA | JAZZ | Canada | Y |
| Air Cara | TX | FWI | FRENCH WEST | France | Y |
| Air Cargo Carriers | 2Q | SNC | NIGHT CARGO | United States | Y |
| Air Central | NV | CRF | AIR CENTRAL | Japan | N |
| Air Chathams | CV | CVA | CHATHAM | New Zealand | Y |
| Air China | CA | CCA | AIR CHINA | China | Y |
| Air City | 4F | ECE | AIRCITY | Germany | N |
| Air Class Lineas Aereas | QD | QCL | ACLA | Uruguay | N |
| Air Comores International | GG | HAH | AIR COMORES | Comoros | N |
| Aircompany Yakutia | R3 | SYL | AIR YAKUTIA | Russia | Y |
| Air Contractors | AG | ABR | CONTRACT | Ireland | N |
| Air Corridor | QC | CRD | AIR CORRIDOR | Mozambique | N |
| Air Dolomiti | EN | DLA | DOLOMOTI | Italy | Y |
| Air D'Ayiti | H9 | HAD | HAITI AVIA | Haiti | N |
| Aires | 4C | ARE | Aerovias de Integracion Regional | S.A. | Y |
| Air Europa | UX | AEA | EUROPA | Spain | Y |
| Air Europe | PE | AEL | AIR EUROPE | Italy | Y |
| Air Exel | XT | AXL | EXEL COMMUTER | Netherlands | Y |
| Air Fiji | PC | FAJ | FIJIAIR | Fiji | N |
| Air Finland | OF | FIF | AIR FINLAND | Finland | Y |
| Air Florida | QH | FLZ | AIR FLORIDA | United States | Y |
| Air Foyle | GS | UPA | FOYLE | United Kingdom | Y |
| Air France | AF | AFR | AIRFRANS | France | Y |
| Air Gabon | GN | AGN | GOLF NOVEMBER | Gabon | N |
| Air Georgia | DA | GRG | AIR GEORGIA | Georgia | N |
| Air Georgian | ZX | GGN | GEORGIAN | Canada | N |
| Air Glaciers | 7T | AGV | AIR GLACIERS | Switzerland | Y |
| Air Greenland | GL | GRL | GREENLAND | Denmark | Y |
| Air Guinee Express | 2U | GIP | FUTURE EXPRESS | Guinea | Y |
| Air Guyane | GG | GUY | GREEN BIRD | French Guiana | Y |
| Air Hong Kong | LD | AHK | AIR HONG KONG | Hong Kong | N |
| Air Horizon | 8C | HZT | HORIZON TOGO | Togo | N |
| Air Iceland | NY | FXI | FAXI | Iceland | Y |
| Air India Express | IX | AXB | EXPRESS INDIA | India | Y |
| Air India Limited | AI | AIC | AIRINDIA | India | Y |
| Air Italy | I9 | AEY | AIR ITALY | Italy | Y |
| Air Ivoire | VU | VUN | AIRIVOIRE | Ivory Coast | Y |
| Air Jamaica | JM | AJM | JAMAICA | Jamaica | Y |
| Air Japan | NQ | AJX | AIR JAPAN | Japan | Y |
| Air Kazakhstan | 9Y | KZK | Kazakh | Kazakhstan | Y |
| Air Kiribati | 4A | AKL | Kiribati | Y | |
| Air Koryo | JS | KOR | AIR KORYO | Democratic People's Republic of Korea | Y |
| Airlinair | A5 | RLA | AIRLINAIR | France | Y |
| Airlines Of Tasmania | FO | ATM | AIRTAS | Australia | Y |
| Airlines PNG | CG | TOK | BALUS | Papua New Guinea | Y |
| Air Lithuania | TT | KLA | KAUNAS | Lithuania | N |
| Air Luxor | LK | LXR | AIRLUXOR | Portugal | Y |
| Air Luxor GB | L8 | LXG | LUXOR GOLF | Guinea-Bissau | N |
| Air Macau | NX | AMU | AIR MACAO | Macao | Y |
| Air Madagascar | MD | MDG | AIR MADAGASCAR | Madagascar | Y |
| Air Madrid | NM | DRD | ALADA AIR | Spain | Y |
| Air Malawi | QM | AML | MALAWI | Malawi | Y |
| Air Malta | KM | AMC | AIR MALTA | Malta | Y |
| Air Marshall Islands | CW | CWM | AIR MARSHALLS | Marshall Islands | Y |
| Air Mauritanie | MR | MRT | MIKE ROMEO | Mauritania | N |
| Air Mauritius | MK | MAU | AIRMAURITIUS | Mauritius | Y |
| Air Mediterranee | DR | BIE | MEDITERRANEE | France | Y |
| Air Midwest | ZV | AMW | AIR MIDWEST | United States | N |
| Air Mobility Command | MC | RCH | REACH | United States | N |
| Air Moldova | 9U | MLD | AIR MOLDOVA | Moldova | Y |
| Air Namibia | SW | NMB | NAMIBIA | Namibia | Y |
| Air New Zealand | NZ | ANZ | NEW ZEALAND | New Zealand | Y |
| Air Nippon | EL | ANK | ANK AIR | Japan | Y |
| Air Nippon Network Co. Ltd. | EH | AKX | ALFA WING | Japan | N |
| Air Niugini | PX | ANG | NUIGINI | Papua New Guinea | Y |
| Airnorth | TL | ANO | TOPEND | Australia | Y |
| Air North Charter - Canada | 4N | ANT | AIR NORTH | Canada | Y |
| Air Nostrum | YW | ANE | AIR NOSTRUM | Spain | Y |
| Air One | AP | ADH | HERON | Italy | Y |
| Air Pacific | FJ | FJI | PACIFIC | Fiji | Y |
| Air Paradise International | AD | PRZ | RADISAIR | Indonesia | Y |
| Air Philippines | 2P | GAP | ORIENT PACIFIC | Philippines | Y |
| Air Plus Comet | A7 | MPD | RED COMET | Spain | Y |
| Air Rarotonga | GZ | RAR | Cook Islands | Y | |
| Air S | KY | EQL | EQUATORIAL | Air S | N |
| Air Sahara | S2 | RSH | SAHARA | India | Y |
| Air Saint Pierre | PJ | SPM | France | Y | |
| Air Santo Domingo | EX | SDO | AERO DOMINGO | Dominican Republic | N |
| Air Senegal International | V7 | SNG | AIR SENEGAL | Senegal | N |
| Air Service | M3 | SPJ | AIR SKOPJE | Macedonia | N |
| Air Service Gabon | G8 | AGB | Gabon | N | |
| Air Seychelles | HM | SEY | SEYCHELLES | Seychelles | Y |
| Air Sinai | 4D | ASD | AIR SINAI | Egypt | Y |
| Air Slovakia | GM | SVK | SLOVAKIA | Slovakia | N |
| Air Srpska | RB | SBK | Air Srpska | Bosnia and Herzegovina | N |
| Airstars | PL | ASE | MOROZOV | Russia | N |
| Air Tahiti | VT | VTA | AIR TAHITI | French Polynesia | Y |
| Air Tahiti Nui | TN | THT | TAHITI AIRLINES | France | Y |
| Air Tanzania | TC | ATC | TANZANIA | Tanzania | Y |
| Air Togo | YT | TGA | AIR TOGO | Togo | N |
| AirTran Airways | FL | TRS | CITRUS | United States | Y |
| Air Transat | TS | TSC | TRANSAT | Canada | Y |
| Air Transport International | 8C | ATN | AIR TRANSPORT | United States | N |
| Air Turks and Caicos | JY | TCI | KERRMONT | Turks and Caicos Islands | N |
| Air Ukraine | 6U | UKR | AIR UKRAINE | Ukraine | N |
| Air Urga | 3N | URG | URGA | Ukraine | N |
| Air Vanuatu | NF | AVN | AIR VAN | Vanuatu | Y |
| Air Vegas | 6V | VGA | AIR VEGAS | United States | N |
| Air VIA | VL | VIM | Bulgaria | Y | |
| Air Wales | 6G | AWW | RED DRAGON | United Kingdom | Y |
| Air Wisconsin | ZW | AWI | AIR WISCONSIN | United States | Y |
| Air Zimbabwe | UM | AZW | AIR ZIMBABWE | Zimbabwe | Y |
| Alaska Airlines | AS | ASA | Inc. | ALASKA | Y |
| Alaska Central Express | KO | AER | ACE AIR | United States | Y |
| Albanian Airlines | LV | LBC | ALBANIAN | Albania | Y |
| Albarka Air | F4 | NBK | AL-AIR | Nigeria | N |
| Alidaunia | D4 | LID | ALIDA | Italy | N |
| Alitalia | AZ | AZA | ALITALIA | Italy | Y |
| Allegiant Air | G4 | AAY | ALLEGIANT | United States | Y |
| Allegro | LL | GRO | ALLEGRO | Mexico | N |
| Alliance Air | CD | LLR | ALLIED | India | N |
| Alliance Airlines | UTY | UNITY | Australia | Y | |
| All Nippon Airways | NH | ANA | ALL NIPPON | Japan | Y |
| Aloha Airlines | AQ | AAH | ALOHA | United States | Y |
| Alpi Eagles | E8 | ELG | ALPI EAGLES | Italy | N |
| Alpine Air Express | 5A | AIP | ALPINE AIR | United States | N |
| Alrosa Mirny Air Enterprise | 6R | DRU | MIRNY | Russia | Y |
| Amadeus Global Travel Distribution | 1A | AGT | AMADEUS | Spain | N |
| Amaszonas | Z8 | AZN | Bolivia | Y | |
| Amber Air | 0A | GNT | GINTA | Lithuania | N |
| American Airlines | AA | AAL | AMERICAN | United States | Y |
| American Eagle Airlines | MQ | EGF | EAGLE FLIGHT | United States | Y |
| American Falcon | WK | AFB | AMERICAN FALCON | Argentina | N |
| America West Airlines | HP | AWE | CACTUS | United States | Y |
| Amerijet International | M6 | AJT | AMERIJET | United States | N |
| Ansett Australia | AN | AAA | ANSETT | Australia | Y |
| Antinea Airlines | HO | DJA | ANTINEA | Algeria | Y |
| AOM French Airlines | IW | AOM | French Lines | France | N |
| Arctic Circle Air Service | 5F | CIR | AIR ARCTIC | United States | N |
| Arcus-Air Logistic | ZE | AZE | ARCUS AIR | Germany | N |
| Ariana Afghan Airlines | FG | AFG | ARIANA | Afghanistan | Y |
| Arkefly | OR | TFL | ARKEFLY | Netherlands | Y |
| Arkia Israel Airlines | IZ | AIZ | ARKIA | Israel | Y |
| Armavia | U8 | RNV | ARMAVIA | Armenia | Y |
| Armenian International Airways | MV | RML | Armenia | N | |
| Arrow Air | JW | APW | BIG A | United States | Y |
| Aserca Airlines | R7 | OCA | AROSCA | Venezuela | Y |
| Asiana Airlines | OZ | AAR | ASIANA | Republic of Korea | Y |
| Asian Express Airlines | HJ | AXF | FREIGHTEXPRESS | Australia | N |
| Asian Spirit | 6K | RIT | ASIAN SPIRIT | Philippines | Y |
| Asia Overnight Express | OE | AOT | ASIA OVERNIGHT | Philippines | N |
| Askari Aviation | 4K | AAS | AL-AAS | Pakistan | Y |
| Astar Air Cargo | ER | DHL | DAHL | United States | N |
| Astraeus | 5W | AEU | FLYSTAR | United Kingdom | Y |
| Astrakhan Airlines | OB | ASZ | AIR ASTRAKHAN | Russia | Y |
| Astral Aviation | 8V | ACP | ASTRAL CARGO | Kenya | Y |
| ATA Airlines | TZ | AMT | AMTRAN | United States | Y |
| Atlant-Soyuz Airlines | 3G | AYZ | ATLANT-SOYUZ | Russia | Y |
| Atlantic Airways | RC | FLI | FAROELINE | Faroe Islands | Y |
| Atlantic Southeast Airlines | EV | ASQ | ACEY | United States | Y |
| Atlantis European Airways | TD | LUR | Armenia | Y | |
| Atlas Air | 5Y | GTI | GIANT | United States | Y |
| Atlas Blue | 8A | BMM | ATLAS BLUE | Morocco | Y |
| Atlasjet | KK | KKK | ATLASJET | Turkey | Y |
| ATRAN Cargo Airlines | V8 | VAS | ATRAN | Russian Federation | Y |
| Atyrau Air Ways | IP | JOL | EDIL | Kazakhstan | N |
| Augsburg Airways | IQ | AUB | AUGSBURG-AIR | Germany | Y |
| Aurigny Air Services | GR | AUR | AYLINE | United Kingdom | Y |
| Aus-Air | NO | AUS | Australia | N | |
| Australian Airlines | AO | AUZ | AUSTRALIAN | Australia | N |
| Austral Lineas Aereas | AU | AUT | AUSTRAL | Argentina | N |
| Austrian Airlines | OS | AUA | AUSTRIAN | Austria | Y |
| Austrian Arrows | VO | TYR | TYROLEAN | Austria | Y |
| AVCOM | J6 | AOC | AERO AVCOM | Russia | N |
| Avensa | VE | AVE | Avensa | Venezuela | N |
| Aviaexpress | RX | AEH | Avex | Hungary | N |
| Avialeasing Aviation Company | EC | TWN | TWINARROW | Uzbekistan | Y |
| Avianca - Aerovias Nacionales de Colombia | AV | AVA | S.A. | AVIANCA | Y |
| Avient Aviation | Z3 | SMJ | AVAVIA | Zimbabwe | Y |
| Avies | U3 | AIA | AVIES | Estonia | Y |
| Avirex | G2 | VXG | AVIREX-GABON | Gabon | N |
| Avolar Aerolineas | V5 | VLI | AEROVOLAR | Mexico | N |
| Axis Airways | 6V | AXY | AXIS | France | N |
| Azerbaijan Airlines | J2 | AHY | AZAL | Azerbaijan | Y |
| B&H Airlines | JA | BON | Air Bosna | Bosnia and Herzegovina | N |
| BACH Flugbetriebsges | B4 | BCF | BACH | Austria | N |
| Bahamasair | UP | BHS | BAHAMAS | Bahamas | Y |
| Baker Aviation | 8Q | BAJ | BAKER AVIATION | United States | N |
| BAL Bashkirian Airlines | V9 | BTC | BASHKIRIAN | Russia | N |
| Bangkok Airways | PG | BKP | BANGKOK AIR | Thailand | Y |
| Bankair | B4 | BKA | BANKAIR | United States | N |
| Barents AirLink | 8N | NKF | NORDFLIGHT | Sweden | Y |
| Bayu Indonesia Air | BM | BYE | BAYU | Indonesia | N |
| Bearskin Lake Air Service | JV | BLS | BEARSKIN | Canada | Y |
| Belair Airlines | 4T | BHP | BELAIR | Switzerland | Y |
| Belavia Belarusian Airlines | B2 | BRU | BELARUS AVIA | Belarus | Y |
| Bellview Airlines | B3 | BLV | BELLVIEW AIRLINES | Nigeria | Y |
| Bemidji Airlines | CH | BMJ | BEMIDJI | United States | Y |
| Benin Golf Air | A8 | BGL | BENIN GOLF | Benin | N |
| Bering Air | 8E | BRG | BERING AIR | United States | Y |
| Berjaya Air | J8 | BVT | BERJAYA | Malaysia | Y |
| Big Sky Airlines | GQ | BSY | BIG SKY | United States | N |
| Biman Bangladesh Airlines | BG | BBC | BANGLADESH | Bangladesh | Y |
| Binter Canarias | NT | IBB | Spain | Y | |
| Bismillah Airlines | 5Z | BML | BISMILLAH | Bangladesh | N |
| Blue1 | KF | BLF | BLUEFIN | Finland | Y |
| Blue Air | 0B | JOR | BLUE TRANSPORT | Romania | Y |
| Bluebird Cargo | BF | BBD | BLUE CARGO | Iceland | N |
| Blue Dart Aviation | BZ | BDA | BLUE DART | India | N |
| Blue Panorama Airlines | BV | BPA | BLUE PANOROMA | Italy | Y |
| Blue Wings | QW | BWG | BLUE WINGS | Germany | Y |
| bmi | BD | BMA | MIDLAND | United Kingdom | Y |
| bmibaby | WW | BMI | BABY | United Kingdom | Y |
| Boston-Maine Airways | E9 | CXS | CLIPPER CONNECTION | United States | N |
| Bouraq Indonesia Airlines | BO | BOU | BOURAQ | Indonesia | N |
| BRA-Transportes Aereos | 7R | BRB | BRA-TRANSPAEREOS | Brazil | N |
| Braathens | BU | BRA | Braathens | Norway | N |
| Braniff International Airways | BN | BNF | Braniff | United States | N |
| Bravo Air Congo | K6 | BRV | BRAVO | Democratic Republic of the Congo | N |
| Brit Air | DB | BZH | BRITAIR | France | Y |
| British Airways | BA | BAW | SPEEDBIRD | United Kingdom | Y |
| British International Helicopters | BS | BIH | BRINTEL | United Kingdom | Y |
| British Mediterranean Airways | KJ | LAJ | BEE MED | United Kingdom | Y |
| Brussels Airlines | SN | DAT | BEE-LINE | Belgium | Y |
| Buffalo Airways | J4 | BFL | BUFFALO | Canada | N |
| Bulgaria Air | FB | LZB | FLYING BULGARIA | Bulgaria | Y |
| buzz | UK | BUZ | N | N | N |
| CAL Cargo Air Lines | 5C | ICL | CAL | Israel | Y |
| Calima Aviacion | XG | CLI | CALIMA | Spain | Y |
| Calm Air | MO | CAV | CALM AIR | Canada | N |
| Camai Air | R9 | CAM | AIR CAMAI | United States | N |
| Cameroon Airlines | UY | UYC | CAM-AIR | Cameroon | N |
| Canadian Airlines | CP | CDN | CANADIAN | Canada | Y |
| Canadian North | 5T | MPE | EMPRESS | Canada | Y |
| Canadian Western Airlines | W2 | CWA | CANADIAN WESTERN | Canada | N |
| CanJet | C6 | CJA | CANJET | Canada | N |
| Cape Air | 9K | KAP | CAIR | United States | Y |
| Capital Cargo International Airlines | PT | CCI | CAPPY | United States | N |
| Cargo 360 | GG | GGC | LONG-HAUL | United States | N |
| Cargoitalia | 2G | CRG | WHITE PELICAN | Italy | N |
| Cargojet Airways | W8 | CJT | CARGOJET | Canada | N |
| Cargolux | CV | CLX | CARGOLUX | Luxembourg | N |
| Cargo Plus Aviation | 8L | CGP | United Arab Emirates | Y | |
| Caribbean Airlines | BW | BWA | CARIBBEAN AIRLINES | Trinidad and Tobago | Y |
| Caribbean Star Airlines | 8B | GFI | CARIB STAR | Antigua and Barbuda | N |
| Carpatair | V3 | KRP | CARPATAIR | Romania | Y |
| Caspian Airlines | RV | CPN | CASPIAN | Iran | Y |
| Cathay Pacific | CX | CPA | CATHAY | Hong Kong SAR of China | Y |
| Cayman Airways | KX | CAY | CAYMAN | Cayman Islands | Y |
| Cebu Pacific | 5J | CEB | CEBU AIR | Philippines | Y |
| Centavia | 7N | CNA | Serbia | N | |
| Centralwings | C0 | CLW | CENTRALWINGS | Poland | Y |
| Centre-Avia | J7 | CVC | AVIACENTRE | Russia | N |
| Centurion Air Cargo | WE | CWC | CHALLENGE CARGO | United States | N |
| Chalk's Ocean Airways | OP | CHK | CHALKS | United States | N |
| Champion Air | MG | CCP | CHAMPION AIR | United States | N |
| Changan Airlines | 2Z | CGN | CHANGAN | China | N |
| Chari Aviation Services | S8 | CSU | CHARI SERVICE | Chad | N |
| Chautauqua Airlines | RP | CHQ | CHAUTAUQUA | United States | Y |
| CHC Airways | AW | SCH | Netherlands | N | |
| Chicago Express | C8 | WDY | WINDY CITY | United States | N |
| China Airlines | CI | CAL | DYNASTY | Taiwan | Y |
| China Cargo Airlines | CK | CKK | CARGO KING | China | N |
| China Eastern Airlines | MU | CES | CHINA EASTERN | China | Y |
| China Northern Airlines | CJ | CBF | CHINA NORTHERN | China | Y |
| China Northwest Airlines | WH | CNW | CHINA NORTHWEST | China | N |
| China Postal Airlines | 8Y | CYZ | CHINA POST | China | N |
| China Southern Airlines | CZ | CSN | CHINA SOUTHERN | China | Y |
| China United Airlines | HR | CUA | LIANHANG | China | Y |
| China Xinhua Airlines | XO | CXH | XINHUA | China | N |
| Chitaavia | X7 | CHF | CHITA | Russia | N |
| Cielos Airlines | A2 | CIU | CIELOS | Peru | N |
| Cimber Air | QI | CIM | CIMBER | Denmark | Y |
| Cirrus Airlines | C9 | RUS | CIRRUS AIR | Germany | Y |
| City Airline | CF | SDR | SWEDESTAR | Sweden | Y |
| City Connexion Airlines | G3 | CIX | CONNEXION | Burundi | Y |
| Cityflyer Express | CJ | CFE | FLYER | United Kingdom | N |
| CityJet | WX | BCY | CITY-IRELAND | Ireland | Y |
| Civil Air Transport | CT | CAT | Mandarin | Taiwan | N |
| Club Air | 6P | ISG | CLUBAIR | Italy | N |
| Coast Air | BX | CST | COAST CENTER | Norway | Y |
| Colgan Air | 9L | CJC | COLGAN | United States | Y |
| Comair | MN | CAW | COMMERCIAL | South Africa | Y |
| Comair | OH | COM | COMAIR | United States | Y |
| CommutAir | C5 | UCA | COMMUTAIR | United States | Y |
| Comores Airlines | KR | CWK | CONTICOM | Comoros | Y |
| Compania Mexicargo | GJ | MXC | MEXICARGO | Mexico | N |
| Compass Airlines | CP | CPZ | Compass Rose | United States | Y |
| Condor Flugdienst | DE | CFG | CONDOR | Germany | Y |
| Consorcio Aviaxsa | 6A | CHP | AVIACSA | Mexico | Y |
| Continental Airlines | CO | COA | CONTINENTAL | United States | Y |
| Continental Airways | PC | PVV | CONTAIR | Russia | N |
| Continental Micronesia | CS | CMI | AIR MIKE | United States | Y |
| Conviasa | V0 | VCV | CONVIASA | Venezuela | Y |
| Copa Airlines | CM | CMP | COPA | Panama | Y |
| Corsairfly | SS | CRL | CORSAIR | France | Y |
| Corse-Mediterranee | XK | CCM | CORSICA | France | Y |
| Cosmic Air | F5 | COZ | COSMIC AIR | Nepal | N |
| Croatia Airlines | OU | CTN | CROATIA | Croatia | Y |
| Crossair Europe | QE | ECC | Cigogne | Switzerland | N |
| Cubana de Aviaci | CU | CUB | CUBANA | Cuba | Y |
| Cyprus Airways | CY | CYP | CYPRUS | Cyprus | Y |
| Czech Airlines | OK | CSA | CSA-LINES | Czech Republic | Y |
| Daallo Airlines | D3 | DAO | DALO AIRLINES | Djibouti | Y |
| Dagestan Airlines | N2 | DAG | DAGAL | Russia | N |
| Dalavia | H8 | KHB | DALAVIA | Russia | Y |
| Darwin Airline | 0D | DWT | DARWIN | Switzerland | Y |
| DAS Air Cargo | WD | DSR | DAIRAIR | Uganda | N |
| DAT Danish Air Transport | DX | DTR | DANISH | Denmark | Y |
| Dauair | D5 | DAU | DAUAIR | Germany | N |
| dba | DI | BAG | SPEEDWAY | Germany | Y |
| Delta Air Lines | DL | DAL | DELTA | United States | Y |
| Deutsche Rettungsflugwacht | 1I | AMB | CIVIL AIR AMBULANCE | Germany | N |
| DHL de Guatemala | L3 | JOS | Guatemala | N | |
| DHL International | ES | DHX | DILMUN | Bahrain | N |
| Dinar | D7 | RDN | AERO DINAR | Argentina | N |
| Dirgantara Air Service | AW | DIR | DIRGANTARA | Indonesia | N |
| Discovery Airways | DH | DVA | DISCOVERY AIRWAYS | United States | N |
| Djibouti Airlines | D8 | DJB | DJIBOUTI AIR | Djibouti | Y |
| Dominicana de Aviaci | DO | DOA | DOMINICANA | Dominican Republic | Y |
| Domodedovo Airlines | E3 | DMO | DOMODEDOVO | Russia | Y |
| DonbassAero | 5D | UDC | DONBASS AERO | Ukraine | Y |
| Dragonair | KA | HDA | Hong Kong Dragon Airlines | DRAGON | Y |
| Druk Air | KB | DRK | ROYAL BHUTAN | Bhutan | Y |
| East African | QU | UGX | CRANE | Uganda | Y |
| East African Safari Air | S9 | HSA | DUMA | Kenya | N |
| Eastern Airways | T3 | EZE | EASTFLIGHT | United Kingdom | Y |
| Eastland Air | DK | ELA | Australia | Y | |
| Eastwind Airlines | W9 | SGR | STINGER | United States | N |
| easyJet | U2 | EZY | EASY | United Kingdom | Y |
| Edelweiss Air | WK | EDW | EDELWEISS | Switzerland | Y |
| Egyptair | MS | MSR | EGYPTAIR | Egypt | Y |
| El-Buraq Air Transport | UZ | BRQ | BURAQAIR | Libya | Y |
| El Al Israel Airlines | LY | ELY | ELAL | Israel | Y |
| Emirates Airline | EK | UAE | EMIRATES | United Arab Emirates | Y |
| Empire Airlines | EM | CFS | EMPIRE AIR | United States | N |
| Empresa Ecuatoriana De Aviacion | EU | EEA | ECUATORIANA | Ecuador | Y |
| Enkor JSC | G8 | ENK | ENKOR | Russia]] | N |
| Eos Airlines | E0 | ESS | NEW DAWN | United States | N |
| Eritrean Airlines | B8 | ERT | ERITREAN | Eritrea | Y |
| Estafeta Carga Aerea | E7 | ESF | Mexico | N | |
| Estonian Air | OV | ELL | ESTONIAN | Estonia | Y |
| Ethiopian Airlines | ET | ETH | ETHIOPIAN | Ethiopia | Y |
| Etihad Airways | EY | ETD | ETIHAD | United Arab Emirates | Y |
| EUjet | VE | EUJ | UNION JET | Ireland | N |
| EuroAtlantic Airways | MM | MMZ | EUROATLANTIC | Portugal | N |
| Eurocypria Airlines | UI | ECA | EUROCYPRIA | Cyprus | Y |
| Eurofly Service | GJ | EEU | EUROFLY | Italy | Y |
| Eurolot | K2 | ELO | EUROLOT | Poland | Y |
| Euromanx Airways | 3W | EMX | EUROMANX | Austria | N |
| European Air Express | EA | EAL | STAR WING | Germany | Y |
| European Air Transport | QY | BCS | EUROTRANS | Belgium | N |
| European Aviation Air Charter | E7 | EAF | EUROCHARTER | United Kingdom | N |
| Eurowings | EW | EWG | EUROWINGS | Germany | Y |
| EVA Air | BR | EVA | EVA | Taiwan | Y |
| Evergreen International Airlines | EZ | EIA | EVERGREEN | United States | Y |
| Excel Airways | JN | XLA | EXPO | United Kingdom | Y |
| Execair Aviation | MB | EXA | CANADIAN EXECAIRE | Canada | N |
| Executive Airlines | OW | EXK | EXECUTIVE EAGLE | United States | N |
| Expo Aviation | 8D | EXV | EXPOAVIA | Sri Lanka | N |
| ExpressJet | XE | BTA | JET LINK | United States | Y |
| Express One International | EO | LHN | LONGHORN | United States | Y |
| Far Eastern Air Transport | EF | EFA | Far Eastern | Taiwan | Y |
| Faroejet | F6 | RCK | ROCKROSE | Faroe Islands | N |
| Faso Airways | F3 | FSW | FASO | Burkina Faso | N |
| Federal Express | FX | FDX | FEDEX | United States | N |
| Felix Airways | FU | FXX | Yemen | Y | |
| Fika Salaama Airlines | N8 | HGK | SALAAMA | Uganda | N |
| Finalair Congo | 4S | FNC | FINALAIR CONGO | Republic of the Congo | N |
| Finnair | AY | FIN | FINNAIR | Finland | Y |
| Finncomm Airlines | FC | WBA | WESTBIRD | Finland | Y |
| Firefly | FY | FFM | FIREFLY | Malaysia | Y |
| First Air | 7F | FAB | Canada | Y | |
| First Choice Airways | DP | FCA | JETSET | United Kingdom | Y |
| Fischer Air | 8F | FFR | FISCHER | Czech Republic | N |
| Flightline | B5 | FLT | FLIGHTLINE | United Kingdom | Y |
| Florida Coastal Airlines | PA | FCL | FLORIDA COASTAL | United States | N |
| Florida West International Airways | RF | FWL | FLO WEST | United States | Y |
| Fly540 | 5H | FFV | SWIFT TANGO | Kenya | Y |
| Fly Air | F2 | FLM | FLY WORLD | Turkey | N |
| Flybaboo | F7 | BBO | BABOO | Switzerland | Y |
| Flybe | BE | BEE | JERSEY | United Kingdom | Y |
| Flyglobespan | B4 | GSM | GLOBESPAN | United Kingdom | Y |
| Flyhy Cargo Airlines | W3 | FYH | FLY HIGH | Thailand | Y |
| FlyLal | TE | LIL | LITHUANIA AIR | Lithuania | Y |
| Fly Me Sweden | SH | FLY | FLYBIRD | Sweden | N |
| FlyNordic | LF | NDC | NORDIC | Sweden | Y |
| Formosa Airlines | VY | FOS | Taiwan | Y | |
| Four Star Aviation / Four Star Cargo | HK | FSC | FOUR STAR | United States | N |
| Freedom Air | FP | FRE | FREEDOM | United States | Y |
| Frontier Airlines | F9 | FFT | FRONTIER FLIGHT | United States | Y |
| Frontier Flying Service | 2F | FTA | FRONTIER-AIR | United States | Y |
| Futura International Airways | FH | FUA | FUTURA | Spain | N |
| Gabon Airlines | GY | GBK | GABON AIRLINES | Gabon | Y |
| Galaxy Air | 7O | GAL | GALAXY | Kyrgyzstan | N |
| Gambia International Airlines | GC | GNR | GAMBIA INTERNATIONAL | Gambia | N |
| Gandalf Airlines | G7 | GNF | Gandalf | Italy | N |
| Garuda Indonesia | GA | GIA | INDONESIA | Indonesia | Y |
| Gazpromavia | 4G | GZP | GAZPROMAVIA | Russia | Y |
| GB Airways | GT | GBL | GEEBEE AIRWAYS | United Kingdom | Y |
| Gemini Air Cargo | GR | GCO | GEMINI | United States | N |
| Georgian Airways | A9 | TGZ | TAMAZI | Georgia | Y |
| Georgian National Airlines | QB | GFG | NATIONAL | Georgia | Y |
| Germania | ST | GMI | GERMANIA | Germany | Y |
| Germanwings | 4U | GWI | GERMAN WINGS | Germany | Y |
| Gestair | GP | GES | GESTAIR | Spain | N |
| Ghana International Airlines | G0 | GHB | GHANA AIRLINES | Ghana | Y |
| Globus | GH | GLP | Russia | Y | |
| Go Air | G8 | GOW | GOAIR | India | Y |
| GoJet Airlines | G7 | GJS | GATEWAY | United States | Y |
| Golden Air | DC | GAO | GOLDEN | Sweden | Y |
| Gol Transportes Aéreos | G3 | GLO | GOL TRANSPORTE | Brazil | Y |
| Gorkha Airlines | G1 | IKA | GORKHA AIRLINES | Nepal | N |
| Grant Aviation | GS | GUN | HOOT | United States | N |
| Great Lakes Airlines | ZK | GLA | LAKES AIR | United States | Y |
| Great Wall Airlines | IJ | GWL | GREAT WALL | China | N |
| Greenfly | XX | GFY | Spain | Y | |
| Grupo TACA | TA | TAT | TACA-COSTARICA | Costa Rica | Y |
| Guine Bissaur Airlines | G6 | BSR | BISSAU AIRLINES | Guinea-Bissau | N |
| Guinee Airlines | J9 | GIF | GUINEE AIRLINES | Guinea | N |
| Gujarat Airways | G8 | GUJ | GUJARATAIR | India | N |
| Gulf Air Bahrain | GF | GBA | GULF BAHRAIN | Bahrain | Y |
| Hageland Aviation Services | H6 | HAG | HAGELAND | United States | Y |
| Hahn Air | HR | HHN | ROOSTER | Germany | N |
| Hainan Airlines | HU | CHH | HAINAN | China | Y |
| Haiti Ambassador Airlines | 2T | HAM | Haiti | Y | |
| Hamburg International | 4R | HHI | HAMBURG JET | Germany | Y |
| Hapag-Lloyd Express (TUIfly) | X3 | HLX | YELLOW CAB | Germany | Y |
| Hapagfly | HF | HLF | HAPAG LLOYD | Germany | Y |
| Harbor Airlines | HB | HAR | HARBOR | United States | N |
| Harmony Airways | HQ | HMY | HARMONY | Canada | N |
| Hawaiian Airlines | HA | HAL | HAWAIIAN | United States | Y |
| Heavylift Cargo Airlines | HN | HVY | HEAVY CARGO | Australia | N |
| Heli France | 8H | HFR | HELIFRANCE | France | Y |
| Helijet | JB | JBA | HELIJET | Canada | Y |
| Helios Airways | ZU | HCY | HELIOS | Cyprus | N |
| Hellas Jet | T4 | HEJ | HELLAS JET | Greece | Y |
| Hello | HW | FHE | FLYHELLO | Switzerland | Y |
| Helvetic Airways | 2L | OAW | HELVETIC | Switzerland | Y |
| Hemus Air | DU | HMS | HEMUS AIR | Bulgaria | N |
| Hewa Bora Airways | EO | ALX | ALLCONGO | Democratic Republic of the Congo | N |
| Hex'Air | UD | HER | HEX AIRLINE | France | Y |
| Hi Fly | 5K | HFY | SKY FLYER | Portugal | N |
| Hokkaido International Airlines | HD | ADO | AIR DO | Japan | Y |
| Hola Airlines | H5 | HOA | HOLA | Spain | Y |
| Hong Kong Airlines | N8 | CRK | BAUHINIA | Hong Kong SAR of China | N |
| Hong Kong Express Airways | UO | HKE | HONGKONG SHUTTLE | Hong Kong SAR of China | Y |
| Horizon Air | QX | QXE | HORIZON AIR | United States | Y |
| Horizon Airlines | BN | HZA | Australia | Y | |
| IBC Airways | II | CSQ | CHASQUI | United States | N |
| Iberia Airlines | IB | IBE | IBERIA | Spain | Y |
| Iberworld | TY | IWD | Spain | Y | |
| Ibex Airlines | FW | IBX | IBEX | Japan | Y |
| Icelandair | FI | ICE | ICEAIR | Iceland | Y |
| Imair Airlines | IK | ITX | IMPROTEX | Azerbaijan | Y |
| Independence Air | DH | IDE | INDEPENDENCE AIR | United States | N |
| Indian Airlines | IC | IAC | INDAIR | India | Y |
| Indigo | I9 | IBU | INDIGO BLUE | United States | Y |
| IndiGo Airlines | 6E | IGO | IFLY | India | Y |
| Indonesia AirAsia | QZ | AWQ | WAGON AIR | Indonesia | Y |
| Indonesian Airlines | IO | IAA | INDO LINES | Indonesia | Y |
| InteliJet Airways | IJ | IJT | INTELIJET | Colombia | N |
| Interair South Africa | D6 | ILN | INLINE | South Africa | Y |
| Interavia Airlines | ZA | SUW | ASTAIR | Russia | Y |
| Intercontinental de Aviaci | RS | ICT | CONTAVIA | Colombia | N |
| Inter Islands Airlines | H4 | IIN | Cape Verde | N | |
| Interlink Airlines | ID | ITK | INTERLINK | South Africa | Y |
| International Business Air | 6I | IBZ | INTERBIZ | Sweden | N |
| Intersky | 3L | ISK | INTERSKY | Austria | Y |
| Interstate Airline | I4 | FWA | FREEWAYAIR | Netherlands | N |
| Iran Air | IR | IRA | IRANAIR | Iran | Y |
| Iran Aseman Airlines | EP | IRC | Iran | Y | |
| Iraqi Airways | IA | IAW | IRAQI | Iraq | Y |
| Island Air (WP) | WP | MKU | United States | Y | |
| Island Express | 2S | SDY | SANDY ISLE | United States | N |
| Islas Airways | IF | ISW | PINTADERA | Spain | Y |
| Islena De Inversiones | WC | ISV | Honduras | Y | |
| Israir | 6H | ISR | ISRAIR | Israel | Y |
| Itali Airlines | 9X | ACL | ITALI | Italy | N |
| Itek Air | GI | IKA | ITEK-AIR | Kyrgyzstan | Y |
| Izair | H9 | IZM | IZMIR | Turkey | N |
| JAL Express | JC | JEX | JANEX | Japan | Y |
| JALways | JO | JAZ | JALWAYS | Japan | Y |
| Japan Airlines | JL | JAL | JAPANAIR | Japan | Y |
| Japan Airlines Domestic | JL | JAL | J-BIRD | Japan | Y |
| Japan Air System | JD | JAS | Air System | Japan | Y |
| Japan Asia Airways | EG | JAA | ASIA | Japan | Y |
| Japan Transocean Air | NU | JTA | JAI OCEAN | Japan | Y |
| Jat Airways | JU | JAT | JAT | Serbia | Y |
| Jatayu Airlines | VJ | JTY | JATAYU | Indonesia | N |
| Jazeera Airways | J9 | JZR | JAZEERA | Kuwait | Y |
| Jeju Air | 7C | JJA | JEJU AIR | Republic of Korea | Y |
| Jet2.com | LS | EXS | CHANNEX | United Kingdom | Y |
| Jetairfly | JF | JAF | BEAUTY | Belgium | Y |
| Jet Airways | 9W | JAI | JET AIRWAYS | India | Y |
| JetBlue Airways | B6 | JBU | JETBLUE | United States | Y |
| Jetclub | 0J | JCS | JETCLUB | Switzerland | N |
| JetsGo | SG | JGO | JETSGO | Canada | N |
| Jetstar Airways | JQ | JST | JETSTAR | Australia | Y |
| Jetstar Asia Airways | 3K | JSA | JETSTAR ASIA | Singapore | Y |
| Jett8 Airlines Cargo | JX | JEC | Singapore | N | |
| Jetx Airlines | GX | JXX | JETBIRD | Iceland | N |
| Jordan Aviation | R5 | JAV | JORDAN AVIATION | Jordan | N |
| Kabo Air | N2 | QNK | KABO | Nigeria | N |
| Kalitta Air | K4 | CKS | CONNIE | United States | N |
| Kam Air | RQ | KMF | KAMGAR | Afghanistan | Y |
| Kampuchea Airlines | E2 | KMP | KAMPUCHEA | Cambodia | N |
| Karat | V2 | AKT | AVIAKARAT | Russia | N |
| Kavminvodyavia | KV | MVD | AIR MINVODY | Russia | Y |
| KD Avia | KD | KNI | KALININGRAD AIR | Russia | Y |
| Kenmore Air | M5 | KEN | KENMORE | United States | Y |
| Kenya Airways | KQ | KQA | KENYA | Kenya | Y |
| Keystone Air Services | BZ | KEE | KEYSTONE | Canada | N |
| Kibris T | KY | KYV | AIRKIBRIS | Turkey | N |
| Kingfisher Airlines | IT | KFR | KINGFISHER | India | Y |
| Kish Air | Y9 | IRK | KISHAIR | Iran | Y |
| Kiwi International Air Lines | KP | KIA | KIWI AIR | United States | N |
| KLM Cityhopper | WA | KLC | CITY | Netherlands | Y |
| KLM Royal Dutch Airlines | KL | KLM | KLM | Netherlands | Y |
| Kogalymavia Air Company | 7K | KGL | KOGALYM | Russia | Y |
| Komiinteravia | 8J | KMV | KOMIINTER | Russia | Y |
| Korean Air | KE | KAL | KOREANAIR | Republic of Korea | Y |
| Kostromskie avialinii | K1 | KOQ | Russia | Y | |
| Krasnojarsky Airlines | 7B | KJC | KRASNOJARSKY AIR | Russia | Y |
| Krylo Airlines | K9 | KRI | Krylo | Russia | N |
| Kuban Airlines | GW | KIL | AIR KUBAN | Russia | Y |
| Kunpeng Airlines | VD | KPA | KUNPENG | China | N |
| Kuwait Airways | KU | KAC | KUWAITI | Kuwait | Y |
| Kuzu Airlines Cargo | GO | KZU | KUZU CARGO | Turkey | Y |
| Kyrgyz Airlines | N5 | KGZ | BERMET | Kyrgyzstan | N |
| Kyrgyzstan | QH | LYN | ALTYN AVIA | Kyrgyzstan | N |
| Kyrgyzstan Airlines | R8 | KGA | KYRGYZ | Kyrgyzstan | N |
| L | MJ | LPR | LAPA | Argentina | Y |
| L.A.B. Flying Service | JF | LAB | LAB | United States | N |
| LACSA | LR | LRC | LACSA | Costa Rica | Y |
| Lagun Air | N6 | JEV | Spain | N | |
| LAI - Linea Aerea IAACA | KG | BNX | AIR BARINAS | Venezuela | N |
| LAN Airlines | LA | LAN | LAN | Chile | Y |
| LAN Express | LU | LXP | LANEX | Chile | Y |
| Lankair | IK | LKN | Lankair | Sri Lanka | N |
| LAN Peru | LP | LPE | LANPERU | Peru | Y |
| Laoag International Airlines | L7 | LPN | LAOAG AIR | Philippines | N |
| Lao Airlines | QV | LAO | LAO | Lao Peoples Democratic Republic | Y |
| Lauda Air | NG | LDA | LAUDA AIR | Austria | Y |
| Lebanese Air Transport | LQ | LAQ | LAT | Lebanon | N |
| Leeward Islands Air Transport | LI | LIA | LIAT | Antigua and Barbuda | Y |
| Libyan Arab Airlines | LN | LAA | LIBAIR | Libya | Y |
| Linea Aerea de Servicio Ejecutivo Regional | 8z | LER | LASER | Venezuela | Y |
| Linea Aerea SAPSA | L7 | LNP | SAPSA | Chile | N |
| Lineas Aereas Azteca | ZE | LCD | LINEAS AZTECA | Mexico | N |
| Linea Turistica Aerotuy | LD | TUY | AEREOTUY | Venezuela | N |
| Linhas A | LM | LAM | MOZAMBIQUE | Mozambique | Y |
| Lion Mentari Airlines | JT | LNI | LION INTER | Indonesia | Y |
| Livingston | LM | LVG | LIVINGSTON | Italy | N |
| Lloyd Aereo Boliviano | LB | LLB | LLOYDAEREO | Bolivia | N |
| LOT Polish Airlines | LO | LOT | POLLOT | Poland | Y |
| LTE International Airways | XO | LTE | FUN JET | Spain | Y |
| LTU Austria | L3 | LTO | BILLA TRANSPORT | Austria | Y |
| LTU International | LT | LTU | LTU | Germany | Y |
| Luftfahrtgesellschaft Walter | HE | LGW | WALTER | Germany | Y |
| Lufthansa | LH | DLH | LUFTHANSA | Germany | Y |
| Lufthansa Cargo | LH | GEC | LUFTHANSA CARGO | Germany | Y |
| Lufthansa CityLine | CL | CLH | HANSALINE | Germany | Y |
| Lufttaxi Fluggesellschaft | DV | LTF | Garfield | Germany | Y |
| Lufttransport | L5 | LTR | LUFT TRANSPORT | Norway | Y |
| Luxair | LG | LGL | LUXAIR | Luxembourg | Y |
| Lviv Airlines | 5V | UKW | UKRAINE WEST | Ukraine | N |
| Lynden Air Cargo | L2 | LYC | LYNDEN | United States | N |
| Macair Airlines | CC | MCK | Australia | Y | |
| Mahan Air | W5 | IRM | MAHAN AIR | Iran | Y |
| Mahfooz Aviation | M2 | MZS | MAHFOOZ | Gambia | N |
| Malév | MA | MAH | MALEV | Hungary | Y |
| Malaysia Airlines | MH | MAS | MALAYSIAN | Malaysia | Y |
| Maldivo Airlines | ML | MAV | Maldivo | Maldives | Y |
| Malmö Aviation | TF | SCW | Scanwings | Sweden | Y |
| Malta Air Charter | R5 | MAC | MALTA CHARTER | Malta | Y |
| Mandala Airlines | RI | MDL | MANDALA | Indonesia | Y |
| Mandarin Airlines | AE | MDA | Mandarin | Taiwan | Y |
| Mango | JE | MNO | TULCA | South Africa | Y |
| Marsland Aviation | M7 | MSL | MARSLANDAIR | Sudan | N |
| Mars RK | 6V | MRW | AVIAMARS | Ukraine | N |
| Martinair | MP | MPH | MARTINAIR | Netherlands | Y |
| MasAir | M7 | MAA | MAS CARGA | Mexico | Y |
| MAT Macedonian Airlines | IN | MAK | MAKAVIO | Macedonia | Y |
| Mavial Magadan Airlines | H5 | MVL | Mavial | Russia | N |
| Maxair | 8M | MXL | MAXAIR | Sweden | Y |
| Maxjet Airways | MY | MXJ | MAX-JET | United States | N |
| Maya Island Air | MW | MYD | MYLAND | Belize | Y |
| Menajet | IM | MNJ | MENAJET | Lebanon | N |
| Meridiana | IG | ISS | MERAIR | Italy | Y |
| Merpati Nusantara Airlines | MZ | MNA | MERPATI | Indonesia | Y |
| Mesa Airlines | YV | ASH | AIR SHUTTLE | United States | Y |
| Mesaba Airlines | XJ | MES | MESABA | United States | Y |
| Metro Batavia | 7P | BTV | BATAVIA | Indonesia | Y |
| Mexicana de Aviaci | MX | MXA | MEXICANA | Mexico | Y |
| Miami Air International | GL | BSK | BISCAYNE | United States | N |
| MIAT Mongolian Airlines | OM | MGL | MONGOL AIR | Mongolia | Y |
| Middle East Airlines | ME | MEA | CEDAR JET | Lebanon | Y |
| Midway Airlines | JI | MDW | MIDWAY | United States | Y |
| Midwest Airlines | YX | MEP | United States | Y | |
| Midwest Airlines (Egypt) | MY | MWA | Egypt | Y | |
| MNG Airlines | MB | MNB | BLACK SEA | Turkey | Y |
| Moldavian Airlines | 2M | MDV | MOLDAVIAN | Moldova | Y |
| Monarch Airlines | ZB | MON | MONARCH | United Kingdom | Y |
| Montenegro Airlines | YM | MGX | MONTAIR | Montenegro | Y |
| Moskovia Airlines | 3R | GAI | GROMOV AIRLINE | Russia | Y |
| Motor Sich | M9 | MSI | MOTOR SICH | Ukraine | Y |
| Mountain Air Company | N4 | MTC | MOUNTAIN LEONE | Sierra Leone | N |
| Mount Cook Airlines | NM | NZM | MOUNTCOOK | New Zealand | N |
| Myanma Airways | UB | UBA | UNIONAIR | Myanmar | Y |
| Myanmar Airways International | 8M | MMM | assignment postponed | Myanmar | Y |
| MyTravel Airways | VZ | MYT | KESTREL | United Kingdom | Y |
| Name | IATA code | ICAO Code | Identifier | Country | Active |
| Nantucket Airlines | DV | ACK | ACK AIR | United States | N |
| Nasair | UE | NAS | NASAIRWAYS | Eritrea | Y |
| Nas Air | XY | KNE | NAS EXPRESS | Saudi Arabia | Y |
| National Airlines | N4 | NCN | Chile | N | |
| National Airlines | N7 | ROK | RED ROCK | United States | N |
| National Airlines | NA | NAL | NATIONAL | United States | N |
| National Jet Systems | NC | NJS | NATIONAL JET | Australia | Y |
| Nationwide Airlines | CE | NTW | NATIONWIDE | South Africa | Y |
| Nauru Air Corporation | ON | RON | AIR NAURU | Nauru | Y |
| Neos | NO | NOS | MOONFLOWER | Italy | N |
| Nepal Airlines | RA | RNA | ROYAL NEPAL | Nepal | Y |
| NetJets | 1I | EJA | EXECJET | United States | Y |
| New England Airlines | EJ | NEA | NEW ENGLAND | United States | Y |
| Niki | HG | NLY | FLYNIKI | Austria | Y |
| Nippon Cargo Airlines | KZ | NCA | NIPPON CARGO | Japan | N |
| Nok Air | DD | NOK | NOK AIR | Thailand | Y |
| Nordeste Linhas Aereas Regionais | JH | NES | NORDESTE | Brazil | N |
| Nordic Regional | 6N | NRD | NORTH RIDER | Sweden | N |
| North-Wright Airways | HW | NWL | NORTHWRIGHT | Canada | N |
| Northern Air Cargo | NC | NAC | YUKON | United States | N |
| North Flying | M3 | NFA | NORTH FLYING | Denmark | N |
| Northwest Airlines | NW | NWA | NORTHWEST | United States | Y |
| Northwestern Air | J3 | PLR | POLARIS | Canada | Y |
| Northwest Regional Airlines | FY | NWR | Australia | N | |
| Norwegian Air Shuttle | DY | NAX | NOR SHUTTLE | Norway | Y |
| Nouvel Air Tunisie | BJ | LBT | NOUVELAIR | Tunisia | Y |
| Nova Airline | M4 | NOV | NOVANILE | Sudan | N |
| Novair | 1I | NVR | NAVIGATOR | Sweden | Y |
| Nuevo Continente | N6 | ACQ | AERO CONTINENTE | Peru | N |
| Oasis Hong Kong Airlines | O8 | OHK | OASIS | Hong Kong | Y |
| Oceanair | O6 | ONE | OCEANAIR | Brazil | Y |
| Ocean Airlines | VC | VCX | OCEANCARGO | Italy | N |
| Olympic Airlines | OA | OAL | OLYMPIC | Greece | Y |
| Oman Air | WY | OMA | OMAN AIR | Oman | Y |
| Omni Air International | OY | OAE | OMNI-EXPRESS | United States | Y |
| Omskavia Airline | N3 | OMS | OMSK | Russia | N |
| Onur Air | 8Q | OHY | ONUR AIR | Turkey | Y |
| Open Skies Consultative Commission | 1L | OSY | OPEN SKIES | United States | N |
| Orenburg Airlines | R2 | ORB | ORENBURG | Russia | Y |
| Orient Thai Airlines | OX | OEA | ORIENT THAI | Thailand | Y |
| Origin Pacific Airways | QO | OGN | ORIGIN | New Zealand | Y |
| Ostfriesische Lufttransport | OL | OLT | OLTRA | Germany | Y |
| Our Airline | ON | RON | OUR AIRLINE | Nauru | N |
| Overland Airways | OJ | OLA | OVERLAND | Nigeria | Y |
| Ozark Air Lines | OZ | OZR | OZARK | United States | N |
| Ozjet Airlines | O7 | OZJ | AUSJET | Australia | Y |
| O'Connor Airlines | UQ | OCM | OCONNOR | Australia | N |
| Pace Airlines | Y5 | PCE | PACE | United States | N |
| Pacific Airlines | BL | PIC | PACIFIC AIRLINES | Vietnam | Y |
| Pacific Blue | DJ | PBN | BLUEBIRD | New Zealand | Y |
| Pacific Coastal Airline | 8P | PCO | PASCO | Canada | Y |
| Pacific East Asia Cargo Airlines | Q8 | PEC | PAC-EAST CARGO | Philippines | Y |
| Pacific Southwest Airlines | PS | PSX | SMILEY | United States | N |
| Pacific Wings | LW | NMI | TSUNAMI | United States | Y |
| Pakistan International Airlines | PK | PIA | PAKISTAN | Pakistan | Y |
| Palau Trans Pacific Airline | GP | PTP | TRANS PACIFIC | Palau | N |
| Palestinian Airlines | PF | PNW | PALESTINIAN | Egypt | N |
| Pamir Airways | NR | PIR | PAMIR | Afghanistan | N |
| Panafrican Airways | PQ | PNF | PANWAYS | Ivory Coast | N |
| PAN Air | PV | PNR | SKYJET | Spain | Y |
| Pan American Airways | PA | PAA | United States | N | |
| Pan American World Airways | PA | PAA | CLIPPER | United States | N |
| Pantanal Linhas Aéreas | P8 | PTN | PANTANAL | Brazil | N |
| Paramount Airways | I7 | PMW | PARAWAY | India | Y |
| PB Air | 9Q | PBA | PEEBEE AIR | Thailand | Y |
| Pearl Airways | HP | HPA | PEARL AIRWAYS | Haiti | N |
| Pegasus Airlines | H9 | PGT | SUNTURK | Turkey | Y |
| Peninsula Airways | KS | PEN | PENINSULA | United States | Y |
| Perm Airlines | P9 | PGP | PERM AIR | Russia | N |
| Philippine Airlines | PR | PAL | PHILIPPINE | Philippines | Y |
| Phuket Air | 9R | VAP | PHUKET AIR | Thailand | Y |
| Piedmont Airlines (1948-1989) | PI | PDT | PIEDMONT | United States | Y |
| Pinnacle Airlines | 9E | FLG | FLAGSHIP | United States | Y |
| PLUNA | PU | PUA | PLUNA | Uruguay | Y |
| PMTair | U4 | PMT | MULTITRADE | Cambodia | Y |
| Polar Air Cargo | PO | PAC | POLAR | United States | N |
| Polynesian Airlines | PH | PAO | POLYNESIAN | Samoa | Y |
| Polynesian Blue | DJ | PLB | POLYBLUE | New Zealand | Y |
| Porter Airlines | PD | POE | PORTER AIR | Canada | Y |
| Portugalia | NI | PGA | PORTUGALIA | Portugal | Y |
| Potomac Air | BK | PDC | DISTRICT | United States | Y |
| Precision Air | PW | PRF | PRECISION AIR | Tanzania | Y |
| President Airlines | TO | PSD | Cambodia | Y | |
| Primaris Airlines | FE | WCP | WHITECAP | United States | N |
| Private Wings Flugcharter | 8W | PWF | PRIVATE WINGS | Germany | N |
| Pulkovo Aviation Enterprise | FV | PLK | PULKOVO | Russia | Y |
| Qantas | QF | QFA | QANTAS | Australia | Y |
| Qatar Airways | QR | QTR | QATARI | Qatar | Y |
| R | YS | RAE | REGIONAL EUROPE | France | Y |
| Redhill Aviation | 8L | RHC | REDAIR | United Kingdom | N |
| Red Wings | WZ | RWZ | AIR RED | Russia | Y |
| Reem Air | V4 | REK | REEM AIR | Kyrgyzstan | N |
| Regional Express | ZL | RXA | REX | Australia | Y |
| RegionsAir | 3C | CEA | CORP-X | United States | N |
| Reno Air | ROA | RENO AIR | United States | N | |
| Republic Airlines | RW | RPA | BRICKYARD | United States | Y |
| Republic Express Airlines | RH | RPH | PUBLIC EXPRESS | Indonesia | Y |
| Rico Linhas A | C7 | RLE | RICO | Brazil | N |
| Rio Grande Air | E2 | GRN | GRANDE | United States | N |
| Rio Sul Servi | SL | RSL | RIO SUL | Brazil | N |
| Royal Air Cambodge | VJ | RAC | Cambodia | Y | |
| Royal Air Force | RR | RFR | RAFAIR | United Kingdom | N |
| Royal Air Force of Oman | RS | MJN | MAJAN | Oman | N |
| Royal Airlines | R0 | RPK | ROYAL PAKISTAN | Pakistan | N |
| Royal Air Maroc | AT | RAM | ROYALAIR MAROC | Morocco | Y |
| Royal Aruban Airline | V5 | RYL | ROYAL ARUBAN | Aruba | N |
| Royal Brunei Airlines | BI | RBA | BRUNEI | Brunei | Y |
| Royal Jordanian | RJ | RJA | JORDANIAN | Jordan | Y |
| Royal Khmer Airlines | RK | RKH | KHMER AIR | Cambodia | N |
| Royal Nepal Airlines | RA | RNA | ROYAL NEPAL | Nepal | Y |
| Royal Phnom Penh Airways | RL | PPW | PHNOM-PENH AIR | Cambodia | Y |
| Royal Tongan Airlines | WR | HRH | TONGA ROYAL | Tonga | N |
| Russian Sky Airlines | P7 | ESL | RADUGA | Russia | N |
| Rwandair Express | WB | RWD | RWANDAIR | Rwanda | Y |
| Ryanair | FR | RYR | RYANAIR | Ireland | Y |
| Ryan International Airlines | RD | RYN | RYAN INTERNATIONAL | United States | Y |
| S7 Airlines | S7 | SBI | SIBERIAN AIRLINES | Russia | Y |
| SAETA | EH | SET | SAETA | Ecuador | N |
| Safair | FA | SFR | CARGO | South Africa | N |
| Sama Airlines | ZS | SMY | NAJIM | Saudi Arabia | Y |
| Samara Airlines | E5 | BRZ | BERYOZA | Russia | N |
| SAM Colombia | MM | SAM | SAM | Colombia | N |
| San Juan Airlines | 2G | MRR | MARINER | United States | N |
| Santa Barbara Airlines | S3 | BBR | SANTA BARBARA | Venezuela | Y |
| Saratov Aviation Division | 6W | SOV | SARATOV AIR | Russia | Y |
| SATA Air Acores | SP | SAT | SATA | Portugal | Y |
| SATA International | S4 | RZO | AIR AZORES | Portugal | Y |
| Sat Airlines | HZ | SOZ | SATCO | Kazakhstan | Y |
| Saudi Arabian Airlines | SV | SVA | SAUDIA | Saudi Arabia | Y |
| Scandinavian Airlines System | SK | SAS | SCANDINAVIAN | Sweden | Y |
| Seaborne Airlines | BB | SBS | SEABORNE | United States | Y |
| Servicios de Transportes A | FS | STU | FUEGUINO | Argentina | Y |
| Shaheen Air International | NL | SAI | SHAHEEN AIR | Pakistan | Y |
| Shandong Airlines | SC | CDG | SHANDONG | China | Y |
| Shanghai Airlines | FM | CSH | SHANGHAI AIR | China | Y |
| Shanxi Airlines | 8C | CXI | SHANXI | China | N |
| Shenzhen Airlines | ZH | CSZ | SHENZHEN AIR | China | Y |
| Shovkoviy Shlyah | S8 | SWW | WAY AERO | Ukraine | N |
| Shuttle America | S5 | TCF | MERCURY | United States | Y |
| Sibaviatrans | 5M | SIB | SIBAVIA | Russia | Y |
| Sichuan Airlines | 3U | CSC | SI CHUAN | China | Y |
| Siem Reap Airways | FT | SRH | SIEMREAP AIR | Cambodia | Y |
| Sierra National Airlines | LJ | SLA | SELAIR | Sierra Leone | Y |
| SilkAir | MI | SLK | SILKAIR | Singapore | Y |
| Silk Way Airlines | ZP | AZQ | SILK LINE | Azerbaijan | N |
| Singapore Airlines | SQ | SIA | SINGAPORE | Singapore | Y |
| Singapore Airlines Cargo | SQ | SQC | SINGCARGO | Singapore | Y |
| SITA | XS | SIT | Belgium | N | |
| Skagway Air Service | N5 | SGY | SKAGWAY AIR | United States | Y |
| Sky Airline | H2 | SKU | AEROSKY | Chile | Y |
| Skybus Airlines | SX | SKB | SKYBUS | United States | N |
| SkyEurope | NE | ESK | RELAX | Slovakia | Y |
| Sky Express | XW | SXR | SKYSTORM | Russia | Y |
| Sky Express | G3 | SEH | AIR CRETE | Greece | Y |
| Sky Eyes | I6 | SEQ | SKY EYES | Thailand | N |
| SkyKing Turks and Caicos Airways | RU | SKI | SKYKING | Turks and Caicos Islands | N |
| Skymark Airlines | BC | SKY | SKYMARK | Japan | Y |
| Skynet Airlines | SI | SIH | BLUEJET | Ireland | Y |
| Skynet Asia Airways | 6J | SNJ | NEWSKY | Japan | Y |
| Skyservice Airlines | 5G | SSV | SKYTOUR | Canada | Y |
| Sky Trek International Airlines | 1I | PZR | PHAZER | United States | N |
| Skywalk Airlines | AL | SYX | SKYWAY-EX | United States | Y |
| Skyways Express | JZ | SKX | SKY EXPRESS | Sweden | Y |
| SkyWest | OO | SKW | SKYWEST | United States | Y |
| Slok Air Gambia | S0 | OKS | SLOK GAMBIA | Gambia | N |
| Slovak Airlines | 6Q | SLL | SLOV LINE | Slovakia | N |
| Solomon Airlines | IE | SOL | SOLOMON | Solomon Islands | Y |
| Sosoliso Airlines | SO | OSL | SOSOLISO | Nigeria | N |
| South African Airways | SA | SAA | SPRINGBOK | South Africa | Y |
| South East Asian Airlines | DG | SRQ | SEAIR | Philippines | Y |
| Southern Winds Airlines | A4 | SWD | SOUTHERN WINDS | Argentina | Y |
| Southwest Airlines | WN | SWA | SOUTHWEST | United States | Y |
| Spanair | JK | JKK | SPANAIR | Spain | Y |
| Spicejet | SG | SEJ | SPICEJET | India | Y |
| Spirit Airlines | NK | NKS | SPIRIT WINGS | United States | Y |
| Spring Airlines | 9S | CQH | AIR SPRING | China | Y |
| SriLankan Airlines | UL | ALK | SRILANKAN | Sri Lanka | Y |
| Sriwijaya Air | SJ | SJY | SRIWIJAYA | Indonesia | Y |
| Star Flyer | 7G | SFJ | STARFLYER | Japan | Y |
| Sterling Airlines | NB | SNB | STERLING | Denmark | Y |
| Sudan Airways | SD | SUD | SUDANAIR | Sudan | Y |
| Sun Air (Fiji) | PI | SUF | SUNFLOWER | Fiji | N |
| Sun Air of Scandinavia | EZ | SUS | SUNSCAN | Denmark | N |
| Sun Country Airlines | SY | SCX | SUN COUNTRY | United States | Y |
| Sun D'Or | 7L | ERO | ECHO ROMEO | Israel | Y |
| SunExpress | XQ | SXS | SUNEXPRESS | Turkey | Y |
| Sunshine Express Airlines | CQ | EXL | Australia | N | |
| Sunwing Airlines | WG | SWG | SUNWING | Canada | N |
| Superior Aviation | SO | HKA | SPEND AIR | United States | N |
| Surinam Airways | PY | SLM | SURINAM | Suriname | Y |
| SwedJet Airways | VD | BBB | BLACKBIRD | Sweden | N |
| Swedline Express | SM | SRL | Starline | Sweden | N |
| Swe Fly | WV | SWV | FLYING SWEDE | Sweden | Y |
| Swissair | SR | SWR | Swissair | Switzerland | Y |
| Swiss International Air Lines | LX | SWR | SWISS | Switzerland | Y |
| Syrian Arab Airlines | RB | SYR | SYRIANAIR | Syrian Arab Republic | Y |
| TAAG Angola Airlines | DT | DTA | DTA | Angola | Y |
| TACV | VR | TCV | CABOVERDE | Portugal | Y |
| TAM Brazilian Airlines | JJ | TAM | TAM | Brazil | Y |
| TAME | EQ | TAE | TAME | Ecuador | Y |
| TAM Mercosur | PZ | LAP | PARAGUAYA | Paraguay | Y |
| TAMPA | QT | TPA | TAMPA | Colombia | Y |
| Tandem Aero | TQ | TDM | TANDEM | Moldova | N |
| TAP Portugal | TP | TAP | AIR PORTUGAL | Portugal | Y |
| Tarom | RO | ROT | TAROM | Romania | Y |
| Tassili Airlines | SF | DTH | TASSILI AIR | Algeria | N |
| Tatarstan Airlines | U9 | TAK | TATARSTAN | Russia | Y |
| Tavrey Airlines | T6 | TVR | TAVREY | Ukraine | N |
| Tbilaviamsheni | L6 | VNZ | TBILAVIA | Georgia | N |
| Teamline Air | L9 | TLW | Teamline | Austria | N |
| Thai AirAsia | FD | AIQ | THAI ASIA | Thailand | Y |
| Thai Air Cargo | T2 | TCG | THAI CARGO | Thailand | Y |
| Thai Airways International | TG | THA | THAI | Thailand | Y |
| Thai Sky Airlines | 9I | TKY | THAI SKY | Thailand | N |
| Thai Star Airlines | T9 | TSX | THAI STAR | Thailand | N |
| Thomas Cook Airlines | MT | TCX | KESTREL | United Kingdom | Y |
| Thomas Cook Airlines | FQ | TCW | THOMAS COOK | Belgium | Y |
| Thomsonfly | BY | TOM | TOMSON | United Kingdom | Y |
| Tiara Air | 3P | TNM | TIARA | Aruba | Y |
| Tiger Airways | TR | TGW | GO CAT | Singapore | Y |
| Tiger Airways Australia | TT | TGW | GO CAT | Australia | Y |
| Titan Airways | ZT | AWC | ZAP | United Kingdom | N |
| TNT Airways | 3V | TAY | QUALITY | Belgium | N |
| Tobruk Air | 7T | TOB | TOBRUK AIR | Libya | N |
| Tol-Air Services | TI | TOL | TOL AIR | United States | N |
| Transaero Airlines | UN | TSO | TRANSOVIET | Russia | Y |
| TransAsia Airways | GE | TNA | TransAsia | Taiwan | Y |
| Transaviaexport | AL | TXC | TRANSEXPORT | Belarus | N |
| Transavia Holland | HV | TRA | TRANSAVIA | Netherlands | Y |
| Transeuropean Airlines | UE | TEP | TRANSEURLINE | Russia | N |
| Trans Maldivian Airways | M8 | TMW | Maldives | N | |
| Trans Mediterranean Airlines | TL | TMA | TANGO LIMA | Lebanon | Y |
| TransMeridian Airlines | T9 | TRZ | TRANS-MERIDIAN | United States | N |
| Transmile Air Services | TH | TSE | TRANSMILE | Malaysia | N |
| Trans States Airlines | AX | LOF | WATERSKI | United States | Y |
| Transwest Air | 9T | ABS | ATHABASKA | Canada | Y |
| Trans World Airlines | TW | TWA | TWA | United States | Y |
| Trast Aero | S5 | TSJ | TRAST AERO | Kyrgyzstan | N |
| Travel Service | QS | TVS | SKYTRAVEL | Czech Republic | Y |
| Tri-MG Intra Asia Airlines | GY | TMG | TRILINES | Indonesia | N |
| TRIP Linhas A | 8R | TIB | TRIP | Brazil | Y |
| Tropic Air | PM | TOS | TROPISER | Belize | Y |
| Tropical Airways | M7 | TBG | Haiti | N | |
| TUI Airlines Belgium | TB | TUB | BEAUTY | Belgium | N |
| TUIfly Nordic | 6B | BLX | BLUESCAN | Sweden | Y |
| Tulip Air | TD | TLP | TULIPAIR | Netherland | N |
| Tuninter | UG | TUI | Tunisia | Y | |
| Tunisair | TU | TAR | TUNAIR | Tunisia | Y |
| Turan Air | 3T | URN | TURAN | Azerbaijan | Y |
| Turkish Airlines | TK | THY | TURKAIR | Turkey | Y |
| Turkmenistan Airlines | T5 | TUA | TURKMENISTAN | Turkmenistan | Y |
| Twin Jet | T7 | TJT | TWINJET | France | Y |
| Ukraine International Airlines | PS | AUI | UKRAINE INTERNATIONAL | Ukraine | Y |
| Ukrainian Cargo Airways | 6Z | UKS | CARGOTRANS | Ukraine | N |
| UM Airlines | UF | UKM | UKRAINE MEDITERRANEE | Ukraine | Y |
| Uni Air | B7 | UIA | Glory | Taiwan | Y |
| United Airlines | UA | UAL | UNITED | United States | Y |
| United Airways | 4H | UBD | UNITED BANGLADESH | Bangladesh | Y |
| United Parcel Service | 5X | UPS | UPS | United States | N |
| Ural Airlines | U6 | SVR | SVERDLOVSK AIR | Russia | Y |
| USA3000 Airlines | U5 | GWY | GETAWAY | United States | Y |
| US Airways | US | USA | U S AIR | United States | Y |
| USA Jet Airlines | U7 | JUS | JET USA | United States | N |
| UTair Aviation | UT | UTA | UTAIR | Russia | Y |
| Uzbekistan Airways | HY | UZB | UZBEK | Uzbekistan | Y |
| Valuair | VF | VLU | VALUAIR | Singapore | Y |
| Varig Log | LC | VLO | VELOG | Brazil | Y |
| VASP | VP | VSP | VASP | Brazil | Y |
| V Australia Airlines | VA | VAU | KANGA | Australia | Y |
| Viaggio Air | VM | VOA | VIAGGIO | Bulgaria | N |
| Vietnam Airlines | VN | HVN | VIET NAM AIRLINES | Vietnam | Y |
| VIM Airlines | NN | MOV | MOV AIR | Russia | Y |
| Virgin America | VX | VRD | REDWOOD | United States | Y |
| Virgin Atlantic Airways | VS | VIR | VIRGIN | United Kingdom | Y |
| Virgin Blue | DJ | VBI | BLUEY | Australia | Y |
| Virgin Blue | DJ | VOZ | VIRGIN | Australia | Y |
| Virgin Express | TV | VEX | VIRGIN EXPRESS | Belgium | Y |
| Virgin Nigeria Airways | VK | VGN | VIRGIN NIGERIA | Nigeria | Y |
| Virgin Pacific | VH | VNP | Fiji | Y | |
| Viva Macau | ZG | VVM | JACKPOT | Macao | Y |
| Vladivostok Air | XF | VLK | VLADAIR | Russia | Y |
| VLM Airlines | VG | VLM | RUBENS | Belgium | Y |
| Volare Airlines | VE | VLE | VOLA | Italy | Y |
| Volaris | Y4 | VOI | VOLARIS | Mexico | Y |
| Volga-Dnepr Airlines | VI | VDA | VOLGA-DNEPR | Russia | Y |
| Voyageur Airways | VC | VAL | VOYAGEUR | Canada | N |
| VRG Linhas Aereas | RG | VRN | VARIG | Brazil | Y |
| Vueling Airlines | VY | VLG | VUELING | Spain | Y |
| WebJet Linhas A | WJ | WEB | WEB-BRASIL | Brazil | Y |
| Welcome Air | 2W | WLC | WELCOMEAIR | Austria | Y |
| West Air Sweden | PT | SWN | AIR SWEDEN | Sweden | N |
| Western Airlines | WA | WAL | WESTERN | United States | Y |
| WestJet | WS | WJA | WESTJET | Canada | Y |
| Westward Airways | CN | WWD | WESTWARD | United States | N |
| Wider | WF | WIF | WIDEROE | Norway | Y |
| Wind Jet | IV | JET | GHIBLI | Italy | Y |
| Wings Air | IW | WON | WINGS ABADI | Indonesia | Y |
| Wings of Alaska | K5 | WAK | WINGS ALASKA | United States | N |
| Wizz Air | W6 | WVL | WIZZBUL | Bulgaria | Y |
| World Airways | WO | WOA | WORLD | United States | Y |
| Wright Air Service | 8V | WRF | WRIGHT FLYER | United States | N |
| Xiamen Airlines | MF | CXA | XIAMEN AIR | China | Y |
| XL Airways France | SE | SEU | STARWAY | France | Y |
| Xtra Airways | XP | CXP | RUBY MOUNTAIN | United States | N |
| Yamal Airlines | YL | LLM | YAMAL | Russia | Y |
| Yangtze River Express | Y8 | YZR | YANGTZE RIVER | China | N |
| Yemenia | IY | IYE | YEMENI | Yemen | Y |
| Yunnan Airlines | 3Q | CYH | YUNNAN | China | Y |
| Yuzhmashavia | 2N | UMK | YUZMASH | Ukraine | Y |
| Zambian Airways | Q3 | MBN | ZAMBIANA | Zambia | N |
| Zimex Aviation | C4 | IMX | ZIMEX | Switzerland | N |
| Zip | 3J | WZP | ZIPPER | Canada | N |
| Zoom Airlines | Z4 | OOM | ZOOM | Canada | Y |
