| Code | Name | Region |
|---|---|---|
| USAUZ | Aurora | IL |
| USYAO | Aurora | IN |
| USA8U | Aurora | ME |
| USQQY | Aurora | MN |
| USAUU | Aurora | MO |
| USAAN | Aurora | NC |
| USAUQ | Aurora | NE |
| USAUR | Aurora | NY |
| US5AU | Auburn | PA |
| USAUJ | Auburn | WA |
| USAUH | Auburn Heights | MI |
| USABH | Auburn Hills | MI |
| USAUD | Auburndale | FL |
| USA9U | Auburndale | MA |
| USZJR | Auburndale | WI |
| USLEW | Auburn-lewiston Apt | ME |
| USA3T | Auburntown | TN |
| US8AC | Auckland | CA |
| USAAQ | Audubon | PA |
| USTFH | August F. Haw | CA |
| USAUT | Augusta | AR |
| USAGS | Augusta | GA |
| US7AU | Augusta | IL |
| UST99 | Augusta | KS |
| USAGU | Augusta | KY |
| USAUG | Augusta | ME |
| USUUT | Augusta | MI |
| USVR9 | Augusta | MO |
| USYZY | Atwater | MN |
| USATG | Atwood | CA |
| US6AT | Atwood | IL |
| USAWD | Atwood | KS |
| USXBI | Au Gres | MI |
| USAY8 | Aubrey | TX |
| USAUO | Auburn | AL |
| USAUN | Auburn | CA |
| USXUB | Auburn | GA |
| USUUR | Auburn | IA |
| USUUN | Auburn | IL |
| USAUI | Auburn | IN |
| USAU9 | Auburn | KS |
| USA2U | Auburn | KY |
| USABU | Auburn | MA |
| USAUE | Auburn | ME |
| USABM | Auburn | MI |
| USQAE | Auburn | NE |
| USAB9 | Auburn | NH |
| USAUB | Auburn | NY |
| USAHZ | Atlantic Highlands | NJ |
| USATP | Atlas Point | DE |