| 1 | AAY | Aly Aviation | Callsign: Aly Aviation, ICAO designator changed to AAV (or correciton) | GB | AVCODES |
| 2 | AAY | Allegiant Air, Inc. | IATA: G4, Callsign: Allegiant, Name changed to Allegiant Air LLC | USA | AVCODES |
| 3 | AAY | Allegiant Air LLC | IATA: G4, Callsign: Allegiant, Name changed from Allegiant Air, Inc. | USA | AVCODES |
| 4 | AAY | Allegiant Air | IATA: G4 | | ICAO1 |
| 5 | AAYA | AARYNN-ALYSSA TRUCKING | | | SCAC3 |
| 6 | AAYD | A ANTHONYS DRIVEAWAY TRUCKAWAY CO I | | | SCAC3 |
| 7 | AAYD | ALARCON ARIAS, DANIELA | | | SCAC4 |
| 8 | AAYI | ALL AMERICAN BOY INC | | | SCAC4 |
| 9 | AAYS | AABY SHIPPING CO. | | | SCAC3 |
