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BT1 1NL
a defunct large user postcode in Northern Ireland
This postcode was deleted in April 2016.
The nearest currently active postcodes are:
North Street BT1 1NB
Royal Avenue BT1 1EX
Royal Avenue BT1 1FF
Church Street BT1 1PG
Royal Avenue BT1 1FE
Church Street BT1 1ER
William Street BT1 1SH
Royal Avenue BT1 1DL
North Street BT1 1LD
Lower Garfield Street BT1 1FP