| PO Number | Town / Place name | Code
| | B01 | Alexandria, Levant |
|
| B02 | Suez |
|
| B03 | P & O Mail Boat | |
| Northfleet |
|
| B04 | Par Station, St. Austell |
|
| B05 | Scorrier |
|
| B06 | Hatt, Plymouth |
|
| B07 | St. Issey |
|
| B08 | St. Mellion |
|
| B09 | Washaway |
|
| B10 | Perranarwothal |
|
| B11 | Devoran |
|
| B12 | P & O Mail Boat | |
| Bickley Station | |
| Bickley |
|
| B13 | Kingsland, Leominster |
|
| B14 | Staunton-on-Arrow |
|
| B15 | Titley, Leominster |
|
| B16 | Plymouth & Bristol S.C. |
|
| B17 | Brownydd Arms |
|
| B18 | Mardy |
|
| B19 | Wolverton |
|
| B20 | Nailsea |
|
| B21 | Yatton, Bristol |
|
| B22 | Congresbury, Bristol |
|
| B23 | Wrington |
|
| B24 | Langton |
|
| B25 | Burrington |
|
| B26 | Blagden |
|
| B27 | Quitta, Gold Coast |
|
| B28 | Moreton Hampstead |
|
| B29 | Chagford |
|
| B30 | Petersham |
|
| B31 | Sierra Leone |
|
| B32 | Buenos Ayres, Argentine |
|
| B33 | Grampound Rood |
|
| B34 | North Western TPO | |
| Irish Mail |
|
| B35 | Shrivenham |
|
| B36 | Stratton St. Margaret | |
| Llanwrda |
|
| B37 | Longcot, Farringdon |
|
| B38 | Pinner |
|
| B39 | Herne Bay |
|
| B40 | Hundered House, Knighton |
|
| B41 | Nantmel |
|
| B42 | Walton | |
| Whitstable |
|
| B43 | Washington Station |
|
| B44 | Flax Bourton |
|
| B45 | West Town, Bristol |
|
| B46 | Rhyddlan |
|
| B47 | Llandudno |
|
| B48 | Trefriw |
|
| B49 | Amlwch |
|
| B50 | Llangefni |
|
| B51 | Menai Bridge |
|
| B52 | Hatch End, Watford |
|
| B53 | Mauritius |
|
| B54 | Cramlington |
|
| B55 | Beal |
|
| B56 | P & O Mail Boat | |
| Troedyrhiw |
|
| B57 | P & O Mail Boat | |
| Bagshot |
|
| B58 | Bucknell |
|
| B59 | Shap, Westm'land |
|
| B60 | Bournmouth |
|
| B61 | Gowerton |
|
| B62 | Hong Kong |
|
| B63 | Blaydon | |
| Blaydon-on-Tyne |
|
| B64 | Seychelles |
|
| B65 | Rodriguez, Mauritius |
|
| B66 | Briton Ferry |
|
| B67 | Winsford |
|
| B68 | Lympstone |
|
| B69 | Paignton |
|
| B70 | Dalton-in-Furness |
|
| B71 | Barrow-in-Furness |
|
| B72 | Malvern Wells |
|
| B73 | Wylam |
|
| B74 | Blyth, Northumberland |
|
| B75 | Bedlington |
|
| B76 | Cowpen | |
| Emma Colliery |
|
| B77 | Cowpen Lane | |
| Bebside |
|
| B78 | Nedderton |
|
| B79 | Boscastle |
|
| B80 | Blackawton, Totnes |
|
| B81 | Harberton, Totnes |
|
| B82 | Harbertonford, Totnes |
|
| B83 | Halwell, Totnes |
|
| B84 | Mounts, Totnes |
|
| B85 | Malvern Link |
|
| B86 | Matlock Bath |
|
| B87 | Weybridge | |
| Weybridge Station |
|
| B88 | Sandown |
|
| B89 | Shanklin |
|
| B90 | Starcross |
|
| B91 | Saltash |
|
| B92 | Rainhill |
|
| B93 | Lelant |
|
| B94 | Saltburn-by-the-Sea |
|
| B95 | Horrabridge |
|
| B96 | Jump | |
| Roborough |
|
| B97 | Knockersknowle | |
| Skegness |
|
| B98 | Princetown |
|
| B99 | Abermule |
|