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BT23 3BY
a defunct postcode in Northern Ireland
This postcode was deleted in December 1995.
The nearest currently active postcodes are:
Bangor Road BT23 7BY
Bangor Road BT23 7BZ
River Hill Drive BT23 7GU
River Hill Avenue BT23 7GS
BT23 7FE
Victoria Crescent BT23 7EQ
Donaghadee Road BT23 7EU
Donaghadee Road BT23 7ET
BT23 7FB
BT23 7FF