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SA4 3WB
a defunct large user postcode in Penllergaer, Swansea
This postcode was deleted in September 2017.
The nearest currently active postcodes are:
SA4 5BZ
SA4 8WT
Llwyn Y Graig SA4 9SA
SA4 5BL
SA4 5BR
SA4 5BS
SA4 5BT
SA4 5BU
SA4 5BW
SA4 5BY