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SG3 6HU
a defunct large user postcode in Oaklands, Welwyn Hatfield, Hertfordshire
This postcode was deleted in December 1994.
The nearest currently active postcodes are:
SG3 6FP
SG3 6FA
SG3 6FE
Barley Croft SG3 6HY
SG3 6FB
London Road SG3 6JR
Wickfield SG3 6HS
Longmead SG3 6JH
SG3 6FF
SG3 6FG