| Locality | Post Code |
|---|---|
| Bebside | NE24 4HX |
| Bedlington | NE22 |
| Belford | NE70 |
| Bellingham | NE48 |
| Bellshill | NE70 |
| Belsay | NE20 |
| Berwick Hill | NE20 |
| Berwick-Upon-Tweed | TD15 |
| Biddlestone | NE65 |
| Bilton | NE66 |
| Bingfield | NE19, NE46 |
| Birling | NE65 0XS |
| Birtley | NE48 |
| Black Heddon | NE20 |
| Blyth | NE24 |
| Blyth Riverside Business Park | NE24 |
| Bolam | NE61 3UA |
| Bolton | NE66 |
| Bothal | NE61 |
| Boulmer | NE66 |
| Bowsden | TD15 |
| Branton | NE66 |
| Branxton | TD12 |
| Broadoaks | NE22 |
| Broomhaugh | NE44 |
| Broomley | NE43 |