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Postcodes in Aberllefenni, Gwynedd - Gwynedd
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SY20 9RP Tan Y Coed
SY20 9RR Caecennau
SY20 9RS Maes Yr Orsaf
SY20 9RT Rock Cottages
SY20 9RU Pensarn
SY20 9RW Garnedd Wen
SY20 9RX Pensarn
SY20 9RY Glanrafon
SY20 9RZ Tanygraig
SY20 9SA Tanygraig