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AL7 1YR
a defunct large user postcode in Welwyn Garden City, Hertfordshire
This postcode was deleted in August 2018.
The nearest currently active postcodes are:
AL7 9LG
AL7 9NG
AL7 9NH
AL7 9NL
AL7 9LQ
AL7 9NQ
AL7 9NR
AL7 9PP
AL7 9PR
AL7 9PS