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LL
LL57
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Markdown
5 sectors, 904 postcodes
Gwynedd
Sector
Postcodes
Local authority
LL57 1
169
Gwynedd
LL57 2
271
Gwynedd
LL57 3
228
Gwynedd
LL57 4
226
Gwynedd
LL57 9
10
Gwynedd