The W1A 1BY postcode was located in Westminster, Westminster postcode town, within London, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1986-04 and terminated on 1998-06.
| Name | Type |
|---|---|
| OA21CD | E00023845 |
| LSOA21CD | E01004714 |
| MSOA21CD | E02000970 |
| MSOA21 | Marylebone & Park Lane |
| Postcode Area | W1A |
| Ward | Marylebone |
| LTLA22 | Westminster |
| UTLA22 | Westminster |
| Region | London |
| Country | England |
| Co-ordinates | [ -0.14782159576477863, 51.514982986834426 ] |