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CO12 4RT
a defunct large user postcode in Harwich, Essex
This postcode was deleted in December 2018.
The nearest currently active postcodes are:
CO12 4WW
CO12 4FA
CO12 3WT
CO12 9AH
CO12 4RQ
CO12 9AB
Kingsway CO12 3AA
CO12 3BE
CO12 9AP
CO12 3SY