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BT1 6AL
a defunct large user postcode in Northern Ireland
This postcode was deleted in June 1999.
The nearest currently active postcodes are:
King Street BT1 6AD
King Street BT1 6BF
King Street BT1 6BZ
Castle Street BT1 1HE
Castle Street BT1 1HP
College Avenue BT1 6BB
College Avenue BT1 6BD
BT1 1GG
College Court BT1 6BS
Castle Street BT1 1HD