| 1 | AAU | Australia Asia Airlines Limited | IATA: IM, Callsign: Austasia, Subsidary of Qantas. Ceased operations during 1996. | AUS | AVCODES |
| 2 | AAU | Aeropa S.r.l. | | I | AVCODES |
| 3 | AAU | Australia Asia Airlines | | | ICAO1 |
| 4 | AAUB | ANNACIS AUTO TRANSPORT | | | SCAC3 |
| 5 | AAUC | ALL AMERICAN CO | | | SCAC3 |
| 6 | AAUC | AA AUTO CARE | | | SCAC4 |
| 7 | AAUD | ALL AROUND TRAVEL INCORPORATED | | | SCAC3 |
| 8 | AAUF | ADRIAPEMA AUTO TRANSPORT CORPORATIO | | | SCAC3 |
| 9 | AAUH | ALEX AUTOPARTES | | | SCAC4 |
| 10 | AAUI | ALL AMERICA AUTO TRANSPORT INC | | | SCAC3 |
| 11 | AAUJ | ANDRETTI AUTOSPORT 4 | | | SCAC4 |
| 12 | AAUK | A A TRUCKING | | | SCAC3 |
| 13 | AAUL | ANDRETTI AUTOSPORT 2 | | | SCAC4 |
| 14 | AAUN | ASTROCIELO NEPTUNEA ARMADORA SA | | | SCAC3 |
| 15 | AAUO | AAA AUTO TRANSPORT | | | SCAC3 |
| 16 | AAUO | ANDRETTI AUTOSPORT 1 | | | SCAC4 |
| 17 | AAUP | AMERICAN AUTO TRANSPORTORS INC | | | SCAC3 |
| 18 | AAUP | ANDRETTI AUTOSPORT 3 | | | SCAC4 |
| 19 | AAUQ | A & A COURIER | | | SCAC3 |
| 20 | AAUR | ACTION AUTO TRANSPORTERS | | | SCAC3 |
| 21 | AAUR | ADVANCED AUTO TRANSPORT INC | | | SCAC4 |
| 22 | AAUS | ACRES AUTOMOTIVE SUPPLIES | | | SCAC3 |
| 23 | AAUT | ALICES AUTO TRANSPORT LLC | | | SCAC4 |
| 24 | AAUV | ANDERSON AUTO TRANSPORT INC | | | SCAC3 |
| 25 | AAUY | A-ACCURATE MOVING COMPANY | | | SCAC4 |
