| Port Code | Port Name | Country |
| USBAZ | Balboa | United States |
| USBBB | Benson | United States |
| USBBC | Bay City | United States |
| USBBD | Brady | United States |
| USBBE | Boscobel | United States |
| USBBF | Burlington | United States |
| USBBG | Batesburg | United States |
| USBBH | Blacksburg | United States |
| USBBI | Bradenton | United States |
| USBBJ | Baldwin | United States |
| USBBK | Bound Brook | United States |
| USBBL | Big Bear Lake | United States |
| USBBM | Bamberg | United States |
| USBBN | Ball Ground | United States |
| USBBO | Battleboro | United States |
| USBBP | Bartlett | United States |
| USBBQ | Bloomsbury | United States |
| USBBR | Brattleboro | United States |
| USBBS | Basin City | United States |
| USBBT | Barbours Cut | United States |
| USBBU | Bloomingburg | United States |
| USBBV | Beech Bottom | United States |
| USBBW | Broken Bow | United States |
| USBBX | Blue Bell | United States |
| USBBY | Babylon | United States |
| USBBZ | Barbourville | United States |
| USBCA | Bainbridge | United States |
| USBCB | Blacksburg | United States |
| USBCC | Bear Creek | United States |
| USBCD | Bedminster | United States |
| USBCE | Bryce | United States |
| USBCF | Belle Glade | United States |
| USBCG | Boca Grande | United States |
| USBCH | Brushvale | United States |
| USBCI | Berlin | United States |
| USBCJ | Bartonville | United States |
| USBCK | Brunswick | United States |
| USBCL | Beulaville | United States |
| USBCM | Bruceton Mills | United States |
| USBCN | Beacon | United States |
| USBCO | Bristol | United States |
| USBCP | Bastian | United States |
| USBCQ | Beattystown | United States |
| USBCR | Bear Creek | United States |
| USBCS | Belle Chasse | United States |
| USBCT | Boca Raton | United States |
| USBCU | Blue Island | United States |
| USBCV | Brevard | United States |
| USBCW | Brewster | United States |
| USBCX | Blanchester | United States |
| USBCY | Bay City | United States |
| USBCZ | Bruce | United States |
| USBDA | Boardman | United States |
| USBDB | Bridgeport | United States |
| USBDC | Bland | United States |
| USBDD | Braddock | United States |
| USBDE | Baudette | United States |
| USBDF | Bradford | United States |
| USBDG | Blanding | United States |
| USBDH | Bedford Heights | United States |
| USBDI | Borden | United States |
| USBDJ | Biddeford | United States |
| USBDK | Budd Lake | United States |
| USBDL | Windsor Locks-Hartford Apt | United States |
| USBDM | Boardman | United States |
| USBDN | Blandon | United States |
| USBDO | Bradford | United States |
| USBDP | Bedford Park | United States |
| USBDQ | Bland | United States |
| USBDR | Bridgeport | United States |
| USBDS | Biscoe | United States |
| USBDT | Bridgewater | United States |
| USBDU | Buda | United States |
| USBDV | Baldwinsville | United States |
| USBDW | Broadway | United States |
| USBDX | Broadus | United States |
| USBDY | Bandon | United States |
| USBDZ | Bladensburg | United States |
| USBEA | Beardstown | United States |
| USBEB | Beaver | United States |
| USBEC | Beckemeyer | United States |
| USBED | Bedford | United States |
| USBEE | Beech Island | United States |
| USBEF | Beecher Falls | United States |
| USBEG | Bellevue | United States |
| USBEH | Benton Harbor | United States |
| USBEI | Berkeley Springs | United States |
| USBEJ | Belcamp | United States |
| USBEK | Beacon Falls | United States |
| USBEL | Belfast | United States |
| USBEM | Bremen | United States |
| USBEN | Bena | United States |
| USBEO | Bernalillo | United States |
| USBEP | Belpre | United States |
| USBEQ | Beachwood | United States |
| USBER | Berwick | United States |
| USBES | Beltsville | United States |
| USBET | Bethel | United States |
| USBEU | Berea | United States |
| USBEV | Beaver Dam | United States |