| Port Code | Port Name | Country |
| USBEW | Berwyn | United States |
| USBEX | Bethlehem | United States |
| USBEY | Berryton | United States |
| USBEZ | Belzoni | United States |
| USBFA | Buford | United States |
| USBFB | Blue Fox Bay | United States |
| USBFC | Branford | United States |
| USBFD | Bradford | United States |
| USBFE | Bluffton | United States |
| USBFF | Scottsbluff | United States |
| USBFG | Bullfrog Basin | United States |
| USBFI | Bayfield | United States |
| USBFJ | Briarcliff Manor | United States |
| USBFL | Bakersfield | United States |
| USBFN | Bellefontaine | United States |
| USBFO | Beaufort | United States |
| USBFP | Beaver Falls | United States |
| USBFQ | Bluffton | United States |
| USBFR | Bedford | United States |
| USBFS | Bristol | United States |
| USBFT | Beaufort | United States |
| USBFU | Buffalo | United States |
| USBFV | Bellville | United States |
| USBFX | Bellflower | United States |
| USBFZ | Brookfield | United States |
| USBGA | Burlington | United States |
| USBGB | Burr Ridge | United States |
| USBGC | Bushnell | United States |
| USBGE | Bainbridge | United States |
| USBGF | Butler | United States |
| USBGG | Butler | United States |
| USBGH | Butternut | United States |
| USBGI | Burlingame | United States |
| USBGJ | Bellefontaine | United States |
| USBGK | Brighton | United States |
| USBGL | Bloomingdale | United States |
| USBGM | Binghamton-Endicott-Johnson City Apt | United States |
| USBGM | Endicott-Johnson City-Binghamton Apt | United States |
| USBGM | Johnson City-Binghamton-Endicott Apt | United States |
| USBGN | Bennington | United States |
| USBGO | Buffalo Grove | United States |
| USBGP | Bridgeport | United States |
| USBGQ | Big Lake | United States |
| USBGR | Bangor | United States |
| USBGT | Bagdad | United States |
| USBGU | Belgium | United States |
| USBGV | Burlington | United States |
| USBGW | Bridgewater | United States |
| USBGX | Belgrade | United States |
| USBGY | Bridgeton | United States |
| USBGZ | Burlington | United States |
| USBHA | Byhalia | United States |
| USBHB | Bar Harbor | United States |
| USBHC | Bridgehampton | United States |
| USBHD | Bradner | United States |
| USBHE | Berkeley Heights | United States |
| USBHF | Brandon | United States |
| USBHG | Boring | United States |
| USBHH | Bethany | United States |
| USBHI | Bruce | United States |
| USBHJ | Burlington | United States |
| USBHK | Bluffton | United States |
| USBHL | Buhl | United States |
| USBHM | Birmingham | United States |
| USBHN | Buckhannon | United States |
| USBHO | Brighton | United States |
| USBHP | Burnham | United States |
| USBHQ | Brush | United States |
| USBHR | Bridgewater | United States |
| USBHS | Brooklyn Heights | United States |
| USBHT | Barnhart | United States |
| USBHV | Branchville | United States |
| USBHW | Brightwood | United States |
| USBHX | Bishop | United States |
| USBHY | Bethany | United States |
| USBHZ | Bergholz | United States |
| USBIA | Batavia | United States |
| USBIB | Birdsboro | United States |
| USBIC | Big Creek | United States |
| USBID | Block Island | United States |
| USBIE | Beatrice | United States |
| USBIG | Big Delta | United States |
| USBIH | Bishop | United States |
| USBII | Bainbridge Island | United States |
| USBIJ | Bartlett | United States |
| USBIK | Berlin | United States |
| USBIL | Billings | United States |
| USBIN | Birmingham | United States |
| USBIO | Binghamton | United States |
| USBIP | Biglerville | United States |
| USBIQ | Bridger | United States |
| USBIR | Birchwood | United States |
| USBIS | Bismarck | United States |
| USBIT | Bricktown | United States |
| USBIV | Bishopville | United States |
| USBIW | Blair | United States |
| USBIX | Biloxi | United States |
| USBIY | Big Sandy | United States |
| USBIZ | Birmingham | United States |
| USBJB | Bridgeburg | United States |