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IP1 1DZ
a defunct large user postcode in Ipswich, Suffolk
This postcode was deleted in December 2016.
The nearest currently active postcodes are:
Butter Market IP1 1BH
Butter Market IP1 1BT
Butter Market IP1 1BJ
Dial Lane IP1 1DJ
St. Stephens Church Lane IP1 1DR
St. Stephens Lane IP1 1DP
Tavern Street IP1 3AW
St. Lawrence Street IP1 1DN
Upper Brook Street IP4 1EB
Dial Lane IP1 1DL