| Code | Name | Region |
|---|---|---|
| USEEB | Bethel, Pitt | NC |
| USBNS | Bether Springs | TN |
| USBZH | Bethesda | MD |
| USZA5 | Bethlehem | CT |
| USEHL | Bethlehem | GA |
| USBE5 | Bethlehem | KY |
| USJHL | Bethlehem | NC |
| USEHE | Bethlehem | NH |
| USRWK | Berwick | LA |
| USBER | Berwick | ME |
| USXDH | Berwick | PA |
| USBWY | Berwyn | IL |
| USBEW | Berwyn | PA |
| USEYL | Beryl | UT |
| USBMV | Bessemer | AL |
| USIBM | Bessemer | MI |
| USQBS | Bessemer | PA |
| USAAD | Bessemer City | NC |
| USBS5 | Bessie | OK |
| US6BT | Bethalto | IL |
| USH7N | Bethanna | KY |
| USBTW | Bethany | CT |
| USBTX | Bethany | IL |
| USBHY | Bethany | MO |
| USBHH | Bethany | OR |
| US7YH | Bethany | PA |
| USBBA | Bethany Beach | DE |
| USAFX | Bethayres | PA |
| USBRC | Bern | KS |
| USBEO | Bernalillo | NM |
| USERS | Bernardston | MA |
| USBRV | Bernardsville | NJ |
| USEXB | Berne | IN |
| USB5N | Bernice | LA |
| USEIE | Bernie | MO |
| USOBV | Bernville | PA |
| USB9T | Berrien Center | MI |
| USB2R | Berrien Springs | MI |
| USBY2 | Berry | AL |
| USAH8 | Berry | KY |
| US3BR | Berry Creek | CA |
| USXGG | Berrysburg | PA |
| USBEY | Berryton | KS |
| USBVV | Berryville | AR |
| USBYV | Berryville | VA |
| USB4T | Bertha | MN |
| USBVC | Berthoud | CO |
| USXCY | Bertram | TX |
| USBKK | Berkeley | IL |
| USTXR | Berkeley | MO |