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HP1 1XY
a defunct large user postcode in Hemel Hempstead, Hertfordshire
This postcode was deleted in April 2019.
The nearest currently active postcodes are:
HP1 1EH
Marlowes HP1 1EZ
Marlowes HP1 1LF
The Square HP1 1ER
Marlowes HP1 1LE
Waterhouse Street HP1 1ET
HP1 1DN
Waterhouse Street HP1 1EU
The Square HP1 1EP
Coombe Street HP1 1HJ