| PO Number | Town / Place name | Code
| | A01 | Kingston, Jamaica |
|
| A02 | St. John's, Antigua |
|
| A03 | Georgetown, British Guiana
Demerara, British Guiana |
|
| A04 | New Amsterdam, British Guiana
Berbice, British Guiana |
|
| A05 | Nassau, Bahamas |
|
| A06 | British Honduras |
|
| A07 | Dominica |
|
| A08 | Montserrat |
|
| A09 | Nevis |
|
| A10 | Kingstown, St. Vincent |
|
| A11 | Castries, St. Lucia |
|
| A12 | Basse Terre, St. Christopher |
|
| A13 | Tortola, Virgin Is. |
|
| A14 | Scarborough, Tobago |
|
| A15 | St. George's, Grenada |
|
| A16 | Newcastle-on-Tyne Station |
|
| A17 | |
|
| A18 | English Harbour, Antigua |
|
| A19 | Appledore |
|
| A20 | Wickham Market |
|
| A21 | Redhill |
|
| A22 | Boxmoor |
|
| A23 | Fremington |
|
| A24 | Instow |
|
| A25 | Malta |
|
| A26 | Gibraltar |
|
| A27 | Alexandria, Jamaica |
|
| A28 | Annotto Bay, Jamaica |
|
| A29 | Bath, Jamaica |
|
| A30 | Black River, Jamaica |
|
| A31 | Brown's Town, Jamaica |
|
| A32 | Buff Bay, Jamaica |
|
| A33 | Chapleton, Jamaica |
|
| A34 | Claremont, Jamaica |
|
| A35 | Clarendon, Jamaica |
|
| A36 | Dry Harbour, Jamaica |
|
| A37 | Duncans, Jamaica |
|
| A38 | Ewarton, Jamaica |
|
| A39 | Falmout, Jamaica |
|
| A40 | First River, Jamaica |
|
| A41 | Gayle, Jamaica |
|
| A42 | Golden Spring, Jamaica |
|
| A43 | Gordon Town, Jamaica |
|
| A44 | Goshon, Jamaica |
|
| A45 | Grange Hill, Jamaica |
|
| A46 | Green Island, Jamaica |
|
| A47 | Highgate, Jamaica |
|
| A48 | Hope Bay, Jamaica |
|
| A49 | Lilliput, Jamaica |
|
| A50 | Little River, Jamaica |
|
| A51 | Lucea, Jamaica |
|
| A52 | Manchioneal, Jamaica |
|
| A53 | Mandeville, Jamaica |
|
| A54 | May Hill, Jamaica |
|
| A55 | Mile Gully, Jamaica |
|
| A56 | Moneague, Jamaica |
|
| A57 | Montego Bay, Jamaica |
|
| A58 | Montpelier, Jamaica |
|
| A59 | Morant Bay, Jamaica |
|
| A60 | Ocho Rios, Jamaica |
|
| A61 | Old Harbour, Jamaica |
|
| A62 | Plantain Garden River, Jamaica |
|
| A63 | Pear Tree Grove, Jamaica |
|
| A64 | Port Antonio, Jamaica |
|
| A65 | Port Morant, Jamaica |
|
| A66 | Port Maria, Jamaica |
|
| A67 | Port Royal, Jamaica |
|
| A68 | Porus, Jamaica |
|
| A69 | Ramble, Jamaica |
|
| A70 | Rio Bueno, Jamaica |
|
| A71 | Rodney Hall, Jamaica |
|
| A72 | Saint David, Jamaica |
|
| A73 | St. Ann's Bay, Jamaica |
|
| A74 | Salt Gut, Jamaica |
|
| A75 | Savanna-La-Mar, Jamaica |
|
| A76 | Spanish Town, Jamaica |
|
| A77 | Stewart Town, Jamaica |
|
| A78 | Vere, Jamaica |
|
| A79 | Richmond, Jamaica | |
| Balaclava, Jamaica |
|
| A80 | P & O Mail Boat |
|
| A81 | P & O Mail Boat |
|
| A82 | P & O Mail Boat |
|
| A83 | P & O Mail Boat |
|
| A84 | P & O Mail Boat | |
| Brasted |
|
| A85 | P & O Mail Boat | |
| Talog |
|
| A86 | P & O Mail Boat | |
| Upper Cwmtwrch |
|
| A87 | P & O Mail Boat | |
| Forestfach |
|
| A88 | P & O Mail Boat | |
| Ynyshir |
|
| A89 | P & O Mail Boat | |
| Pontyclown |
|
| A90 | P & O Mail Boat | |
| East Liss |
|
| A91 | Cunard Line Mail Boat | |
| Southsea B.O. Portsmouth |
|
| A92 | Cunard Line Mail Boat | |
| Masham |
|
| A93 | Cunard Line Mail Boat | |
| Llanfarian |
|
| A94 | Cunard Line Mail Boat | |
| Penarth |
|
| A95 | Cunard Line Mail Boat | |
| Newport, Yorks |
|
| A96 | Cunard Line Mail Boat | |
| North Cave |
|
| A97 | Cunard Line Mail Boat | |
| South Cave |
|
| A98 | Cunard Line Mail Boat | |
| South Bank |
|
| A99 | P & O Mail Boat | |
| Chwilog |
|