| Code | Name | Region |
|---|---|---|
| AUAPP | Applecross | WA |
| AUAXC | Aramac | QLD |
| AUAHS | Arana Hills | QLD |
| AUARY | Ararat | VIC |
| AUR5T | Arawata | VIC |
| AUACD | Arcadia | NSW |
| AUAFL | Archerfield | QLD |
| AUATA | Ardlethan | NSW |
| AUAHK | Ardross | WA |
| AUARD | Ardrossan | SA |
| AUALX | Alexandria | NSW |
| AUAXL | Alexandria | NT |
| AUASP | Alice Springs | NT |
| AUALB | Allambie Heights | NSW |
| AUAFD | Allansford | VIC |
| AUABH | Alpha | QLD |
| AUAPT | Alphington | VIC |
| AUALN | Alpine | NSW |
| AUAYD | Alroy Downs | NT |
| AUAVI | Alstonville | NSW |
| AUAWN | Alton Downs | SA |
| AUALT | Altona | VIC |
| AUATO | Altona North | VIC |
| AUALV | Alvie | VIC |
| AUAYG | Alyangula | NT |
| AUAMT | Amata | NT |
| AUABL | Amberley | QLD |
| AURCN | American River | SA |
| AUAMX | Ammaroo | NT |
| AUAMR | Amrun | QLD |
| AUS4A | Aberfoyle Park | SA |
| AUABG | Abingdon | QLD |
| AUACA | Acacia Ridge | QLD |
| AUMST | Adamstown | NSW |
| AUADL | Adelaide | SA |
| AUADA | Adelaide Apt | SA |
| AUALO | Adelong | NSW |
| AUANB | Agnes Bank | NSW |
| AUAGW | Agnew | QLD |
| AUWSY | Airlie Beach | QLD |
| AUAIR | Airlie Terminal | WA |
| AUAPW | Airport West | VIC |
| AUALH | Albany | WA |
| AUACK | Albany Creek | QLD |
| AUABO | Alberton | QLD |
| AUAPK | Albion Park | NSW |
| AUABX | Albury | NSW |
| AUALD | Aldgate | SA |
| AUADG | Aldinga | SA |
| AUAVA | Alexandra | VIC |