| Code | Name | Region |
|---|---|---|
| USBUI | Butler | IN |
| USBUJ | Butler | KY |
| USBT9 | Butler | MD |
| USBUM | Butler | MO |
| USBGG | Butler | NJ |
| USBTP | Butler | PA |
| USXDG | Butler | WI |
| USZBD | Butlerville | IN |
| US4BH | Burnham | IL |
| USBNH | Burnham | ME |
| USBHP | Burnham | PA |
| USBNO | Burns | OR |
| USBS3 | Burns | TN |
| USBNB | Burns Harbor | IN |
| USBD5 | Burnside | KY |
| USUDE | Burnside | LA |
| USUPD | Burnside | PA |
| USBYO | Burnsville | MN |
| USXUV | Burnsville | MS |
| USBNI | Burnsville | NC |
| US7BN | Burnt Prairie | IL |
| USBUQ | Burr Oak | MI |
| USBGB | Burr Ridge | IL |
| USYBU | Burrton | KS |
| USBTU | Burt | NY |
| USQBU | Burton | MI |
| USBUT | Burton | OH |
| USBUV | Burtonsville | MD |
| USBHJ | Burlington | KY |
| USBBF | Burlington | MA |
| USB8U | Burlington | ME |
| USUIG | Burlington | MI |
| USXDD | Burlington | NC |
| USBUH | Burlington | NJ |
| USUOG | Burlington | NY |
| USJGZ | Burlington | OK |
| USBGV | Burlington | OR |
| USB9L | Burlington | PA |
| USBTV | Burlington | VT |
| USBGA | Burlington | WA |
| USBUW | Burlington | WI |
| USXCU | Burlington | WY |
| USUGF | Burlington Flats | NY |
| USQRI | Burlison | TN |
| US7BU | Burnet | TX |
| USTTB | Burnett | TX |
| USBYN | Burney | CA |
| USUGY | Burney | IN |
| USBR4 | Burgettstown | PA |
| USUIE | Burien | WA |