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CO12 9AX
a defunct large user postcode in Harwich, Tendring, Essex
This postcode was deleted in May 2021.
The nearest currently active postcodes are:
CO12 9AT
CO12 9BD
CO12 9AQ
CO12 9AU
CO12 9AS
CO12 9AZ
CO12 9BA
CO12 9BB
CO12 3BE
CO12 9AB