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AL7 4YY
a defunct large user postcode in Welwyn Garden, Welwyn Hatfield, Hertfordshire
This postcode was deleted in July 1995.
The nearest currently active postcodes are:
East Burrowfield AL7 4TB
Burrowfield AL7 4SR
West Burrowfield AL7 4TW
Burrowfield AL7 4SS
Southfield AL7 4ST
Little Burrow AL7 4SP
Southfields AL7 4SU
Burrowfield AL7 4SN
Chequers AL7 4TA
Little Burrow AL7 4SW