| Code | Name | Region |
|---|---|---|
| ATBSL | Bad Sankt Leonhard Im Lavanttal | 2 |
| ATBSB | Bad Sauerbrunn | 1 |
| ATBSH | Bad Schallerbach | 4 |
| ATBVU | Bad Vigaun | 5 |
| ATBVL | Bad Voslau | |
| ATBWN | Bad Wimsbach-neydharting | 4 |
| ATBDN | Baden | |
| AT6KS | Badendorf | 6 |
| ATBDS | Badersdorf | 1 |
| ATBGA | Badgastein | 5 |
| ATBDA | Baierdorf Bei Anger | 6 |
| ATBRB | Barenbach | 6 |
| ATBBH | Barnbach | |
| ATBTE | Baumgarten Am Tullnerfeld | 3 |
| ATASC | Aschach An Der Donau | 4 |
| ATADS | Aschach An Der Steyr | 4 |
| ATABM | Aschbach Markt | 3 |
| ATAPG | Aspang | 3 |
| ATASP | Aspern | |
| ATATN | Asten | 4 |
| ATATP | Attnang-puchheim | 4 |
| ATATB | Atzbach | 4 |
| ATATZ | Atzenbrugg | 3 |
| ATADD | Au An Der Donau | |
| ATARN | Auern | 4 |
| ATUER | Auersthal | |
| ATABK | Aurach Bei Kitzbuhel | 7 |
| ATALZ | Aurolzmunster | |
| ATAUE | Bad Aussee | 6 |
| ATBDG | Bad Deutsch-altenburg | 3 |
| ATBRH | Bad Erlach | 3 |
| ATBFI | Bad Fischau | |
| ATBGC | Bad Gleichenberg | |
| ATBGM | Bad Goisern | 4 |
| ATATG | Altlengbach | |
| ATAMU | Altmuenster | 4 |
| ATAMS | Ameis | 3 |
| ATZAD | Ampflwang Im Hausruckwald | 4 |
| ATATT | Amstetten | 3 |
| ATADU | Andau | |
| ATABU | Andelsbuch | 8 |
| ATRCH | Andrichsfurt | 4 |
| ATANR | Anger | 6 |
| ATERG | Angerberg | 7 |
| ATANF | Anif | |
| ATANS | Ansfelden | 4 |
| ATTNU | Antau | 1 |
| ATARG | Anthering | |
| ATAHN | Antiesenhofen | |
| ATAPT | Apetlon | 1 |