| 1 | AUT | Cielos del Sur S.A. d/b/a Austral Lineas Aereas S.A. | IATA: AU, Callsign: Austral, IATA Prefix: 143, Merged into Aerolineas Argentinas w.e.f. 30 November 2020. Name changed from Austral Lineas Aereas. | RA | AVCODES |
| 2 | AUT | Austral Lineas Aereas | IATA: AU, Callsign: Austral, IATA Prefix: 143, Name changed to Cielos del Sur S.A. d/b/a Austral Lineas Aereas S.A. Name changed from Compania Argentina de Transortes Aereos S.A.C. eI. - Austral | RA | AVCODES |
| 3 | AUT | Austral Lineas Aereas | IATA: AU | | ICAO1 |
| 4 | AUT | AUTO LINER CORP | | | PWRC |
| 5 | AUT | AUTAUGA NORTHERN RAILROAD LLC | | | SCAC4 |
| 6 | AUTA | AUTO TRANSPORTERS | | | SCAC3 |
| 7 | AUTA | AUTO TRANSPORTES | | | SCAC4 |
| 8 | AUTB | AUTOBAHN TOURS INC | | | SCAC3 |
| 9 | AUTB | AUTO TRANSPORTE HERNANDEZ | | | SCAC4 |
| 10 | AUTC | AUTOMOBILE TRANSPORT CLEARINGHOUSE | | | SCAC3 |
| 11 | AUTC | Austrac Operations | | AUS | TRAFFIC |
| 12 | AUTD | AUTO DRIVEAWAY COMPANY | | | SCAC3 |
| 13 | AUTD | AUTO DRIVEAWAY | | | SCAC4 |
| 14 | AUTE | AUTO EXPRESS&TRANSFER CO | | | SCAC3 |
| 15 | AUTF | AUTOMOBILE TRANSPORT FLEET AFFILIAT | | | SCAC4 |
| 16 | AUTG | AUSTIN TRUCKING COMPANY | | | SCAC3 |
| 17 | AUTG | AUTOGAS IMPEX SRL | | RO | VKM |
| 18 | AUTH | AUTO-TRANS HOLDINGS LIMITED | | | SCAC3 |
| 19 | AUTH | AUTO-TOW ROADSIDE ASSISTANCE | | | SCAC4 |
| 20 | AUTI | AUTHORITY TRUCKING & RENTAL CORP | | | SCAC3 |
| 21 | AUTI | AUTOTRANSPORTES DE CARGA ANTONIO OT | | | SCAC4 |
| 22 | AUTJ | AUTO EXPRESS INC | | | SCAC3 |
| 23 | AUTK | ANDERS UTKILENS REDERI A/S | | | SCAC4 |
| 24 | AUTL | AUTO TRANSPORT | | | SCAC3 |
| 25 | AUTL | AUTO TRANSPORT | | | SCAC4 |
| 26 | AUTM | AUTO MESSENGER SVC INC | | | SCAC3 |
| 27 | AUTN | AUTOMOTIVE TRANSPORT SERVICE | | | SCAC3 |
| 28 | AUTN | AUTOTANQUES NIETO S A DE C V | | | SCAC4 |
| 29 | AUTO | AUTO PRODUCTS TRANSPORT INC | | | SCAC3 |
| 30 | AUTO | AUTOFLETES INTERNACIONALES FAJA | | | SCAC4 |
| 31 | AUTO | Autotrain Corporation | Real: ATC | USA | TRAFFIC |
| 32 | AUTP | AUTO TRANSPORTS CD MANTE S A DE C V | | | SCAC3 |
| 33 | AUTP | AUTO EXPRESS CINCO GARZA DE TAMAULI | | | SCAC4 |
| 34 | AUTQ | AUTOMOTIVE TRANSPORTATION SYSTEMS I | | | SCAC3 |
| 35 | AUTQ | AUTOMATION TECHNOLOGIES INTERNATION | | | SCAC4 |
| 36 | AUTR | AUTOTRANSPORTES DE CARGA RAMA | | | SCAC4 |
| 37 | AUTS | AUTO TRANSPORTES DEL DESIERTO | | | SCAC4 |
| 38 | AUTT | ATLAS UNLIMITED TRANSPORT INC | | | SCAC4 |
| 39 | AUTU | AUSTAINER PTY LTD | | AUS | BIC |
| 40 | AUTV | AULTMAN TRUCKING CO INC | | | SCAC3 |
| 41 | AUTV | AULTMAN OIL COMPANY INC | | | SCAC4 |
| 42 | AUTW | AUTWELL TRANSPORTATION INC | | | SCAC3 |
| 43 | AUTX | AUTO-LINER INC | | | SCAC4 |
