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SR1 1YN
a defunct large user postcode in Enterprise Park, Sunderland
This postcode was deleted in March 2021.
The nearest currently active postcodes are:
SR5 9QS
SR5 9PR
SR5 9PQ
SR5 9PL
SR5 9PG
SR5 9PF
SR5 9PD
SR5 9NX
SR5 1YT
SR6 7YE