| 1 | ASY | Royal Australian Air Force | Callsign: Aussie, | AUS | AVCODES |
| 2 | ASY | Royal Australian Air Force | | | ICAO1 |
| 3 | ASYB | ASUPPLY CHAIN SOLUTION LLC | | | SCAC4 |
| 4 | ASYC | ANIMAL SUPPLY COMPANY | | | SCAC3 |
| 5 | ASYD | AGRICOLA SOLYMAR SA DE CV | | | SCAC4 |
| 6 | ASYE | ATLANTIC SYSTEMS INC | | | SCAC3 |
| 7 | ASYF | ATEC SYSTEMS LTD | | | SCAC4 |
| 8 | ASYG | ASTEC LOGISTICS | | | SCAC4 |
| 9 | ASYH | ALLIED SYSTEMS INC | | | SCAC3 |
| 10 | ASYI | ALTO SYSTEMS INC | | | SCAC3 |
| 11 | ASYJ | AIR SUPPLY ALASKA INC | | | SCAC4 |
| 12 | ASYK | ASHLEY LYN TRUCKING | | | SCAC4 |
| 13 | ASYL | ARPIN AMERICA MOVING SYSTEMS LLC | | | SCAC4 |
| 14 | ASYM | ACTION SYSTEMS INC | | | SCAC3 |
| 15 | ASYM | AIREX SYSTEMS LTD | | | SCAC4 |
| 16 | ASYN | ALICE SPECIALTY CO INC | | | SCAC3 |
| 17 | ASYN | ATS RETAIL SOLUTIONS | | | SCAC4 |
| 18 | ASYP | ALLIED SYSTEMS (CANADA) COMPANY | | | SCAC4 |
| 19 | ASYQ | ALLSPRAY LTD | | | SCAC4 |
| 20 | ASYS | ASCO SYSTEMS INC | | | SCAC3 |
| 21 | ASYT | ASAY TRUCKING INC | | | SCAC3 |
| 22 | ASYT | ASAY TRUCKING INC | | | SCAC4 |
| 23 | ASYW | AERIO SHIPMANAGEMENT LTD | | | SCAC4 |
| 24 | ASYX | Avondale Shipyards, Inc. | added 1/1975; 1/1975-1/1980; eliminated 1/1985 | | NAKINA |
| 25 | ASYX | Avondale Shipyards, Inc. | added 1/75; 1/75-1/80; eliminated 1/85 | | NRHS |
| 26 | ASYX | AVONDALE SHIPYARDS INC. | | | PWRC |
| 27 | ASYX | Avondale Shipyards | | | RSRV |
