Y | Somerset |
YA | Taunton |
YB | Taunton |
YC | Taunton |
YD | Taunton |
YE | London (Central) |
YF | London (Central) |
YG | Leeds |
YH | London (Central) |
YJ | Brighton (Dundee until 1974) |
YK | London (Central) |
YL | London (Central) |
YM | London (Central) |
YN | London (Central) |
YO | London (Central) |
YP | London (Central) |
YR | London (Central) |
YS | Glasgow |
YT | London (Central) |
YU | London (Central) |
YV | London (Central) |
YW | London (Central) |
YX | London (Central) |
YY | London (Central) |