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BT1 6AA
a defunct postcode in Northern Ireland
This postcode was deleted in November 2009.
The nearest currently active postcodes are:
Castle Street BT1 1HP
College Avenue BT1 6BB
College Avenue BT1 6BD
King Street BT1 6AD
King Street BT1 6BF
King Street BT1 6BZ
Castle Street BT1 1HE
BT1 1GG
King Street BT1 1HU
Marquis Street BT1 1JJ