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YO21 3YZ
a defunct large user postcode in Whitby
This postcode was deleted in December 1991.
The nearest currently active postcodes are:
Runswick Avenue YO21 3UB
Runswick Avenue YO21 3UE
Byland Road YO21 1YF
Mickleby Drive YO21 3UD
Heworth Drive YO21 3UA
Byland Road YO21 1YG
YO21 3UG
St. Andrews Road YO21 1LJ
Wentworth Crescent YO21 1LQ
St. Andrews Road YO21 1LH