| Code | Name | Region |
|---|---|---|
| USBKX | Brookings | SD |
| US9BE | Brookland | AR |
| USBE4 | Brooklandville | MD |
| USB8K | Brooklawn | NJ |
| USOKT | Brooklet | GA |
| USBKR | Brookley | AL |
| USBL3 | Brooklin, Hancock | ME |
| USBMA | Brookline | MA |
| USBJK | Brookline | MO |
| USUBT | Brookline | NH |
| USBO8 | Brookline Station | MO |
| USBOC | Brooklyn | CT |
| USOYN | Brooklyn | IA |
| USOYK | Brooklyn | KY |
| USBN5 | Brooklyn | MD |
| USBK8 | Brooklyn | MI |
| USVBJ | Brooklyn | MS |
| USBKU | Brooklyn | OH |
| USBNX | Bronxville | NY |
| USNA6 | Brook | IN |
| USBPC | Brook Park | MN |
| USBPO | Brook Park | OH |
| US4BD | Brookdale | CA |
| USB6O | Brookeland | TX |
| USO2V | Brookeville | MD |
| USKFR | Brookfield | CO |
| USBRK | Brookfield | CT |
| USIKD | Brookfield | GA |
| USIBF | Brookfield | IL |
| USBKZ | Brookfield | MA |
| USOFI | Brookfield | MO |
| USBF2 | Brookfield | NY |
| USBFZ | Brookfield | OH |
| US8BK | Brookfield | VT |
| USXCH | Brookfield | WI |
| US9BH | Brookhaven | GA |
| USBKN | Brookhaven | MS |
| USZBH | Brookhaven | NY |
| USBPK | Brockport | NY |
| USBK7 | Brockport | PA |
| USBKS | Brockton | MA |
| USBKY | Brockway | PA |
| USBWJ | Brockwell | AR |
| USBD8 | Brodhead | KY |
| USBH4 | Brodhead | WI |
| USBXQ | Brodnax | VA |
| USOUE | Brogue | PA |
| USZVH | Brokaw | WI |
| USBWQ | Broken Arrow | OK |
| USBBW | Broken Bow | NE |