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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 | Callsign | Country | Comments |
|---|---|---|---|---|---|
| PR | BOI | 2GO | ABAIR | Philippines | |
| EVY | 34 Squadron, Royal Australian Air Force | Multiple | |||
| GNL | 135 Airways | GENERAL | United States | ||
| 1A | n/a | Amadeus IT Group S.A. | n/a | Global | GDS and airline hosting system (CRS/PSS) |
| 1B | n/a | Sabre travel network Asia-Pacific (ex-Abacus) | n/a | APAC | Regional distribution |
| 1E | n/a | Travelsky | n/a | China | Local distribution system and hosting system (CRS/PSS) |
| 1F | n/a | Infini travel information, Inc. | n/a | Japan | Local distribution system (CRS) |
| 1G | n/a | Travelport (Galileo core) | n/a | Global | GDS (CRS) |
| 1H | n/a | Sirena travel | n/a | Russia | Local distribution system (CRS) and PSS |
| 1J | PT. Navios Evolusi Solusindo | Indonesia | |||
| 1K | MixVel | Russia | |||
| 1M | Online Reservation System JSC | Russia | |||
| 1P | n/a | Travelport (Worldspan core) | n/a | United States | GDS (CRS) |
| 1S | n/a | Sabre travel network | n/a | United States | GDS and airline hosting system (CRS/PSS) |
| 1T | n/a | Hitit Computer Services | n/a | Turkey | Computer reservation system |
| 1U | n/a | Google/ITA | n/a | United States | Airline IT provider |
| 2T | Bermudair Limited | Bermuda | |||
| WYT | 2 Sqn No 1 Elementary Flying Training School | WYTON | United Kingdom | Royal Air Force | |
| TFU | 213th Flight Unit | THJY | Russia | State Airline | |
| CHD | 223rd Flight Unit | CHKALOVSK-AVIA | Russia | State Airline | |
| TTF | 224th Flight Unit | CARGO UNIT | Russia | State Airline | |
| TWF | 247 Jet Ltd | CLOUD RUNNER | United Kingdom | ||
| SEC | 3D Aviation | SECUREX | United States | ||
| Q5 | MLA | 40-Mile Air | MILE-AIR | United States | |
| QRT | 4D Air | QUARTET | Thailand | Defunct | |
| PIU | 43 Air School | PRIMA | South Africa | ||
| 4D | Aerro Direkt S.R.L. | Romania | |||
| 4R | SEK | Star East Airline | EAST RIDER | Romania | |
| 4O | MNE | Air Montenegro | MOUNT EAGLE | Montenegro | |
| 5W | WAZ | Wizz Air Abu Dhabi | WIZZ SKY | United Arab Emirates | |
| 7B | UBE | Bees Airline | FLOWER BEE | Ukraine | Defunct, AOC revoked due to not having any aircraft. |
| AQ | JYH | 9 Air | TRANS JADE | China | |
| BRO | 2Excel Aviation | BROADSWORD | United Kingdom |