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LL55 1SZ
a defunct large user postcode in Caernarfon, Gwynedd
This postcode was deleted in August 2009.
The nearest currently active postcodes are:
Bank Quay LL55 1ST
Bangor Street LL55 1AE
Bangor Street LL55 1AT
Bangor Street LL55 1AP
Turf Square LL55 1AN
Eastgate Street LL55 1AL
Eastgate Street LL55 1AG
Bank Quay LL55 1SU
Pepper Lane LL55 1RG
Crown Street LL55 1SY