Pontllanfraith is a village in Caerphilly county borough, Wales.
It is situated within the NP12 postcode district, which is within the Blackwood post town.
NP12 is the only postcode district within the Blackwood post town.
The Blackwood post town is within the Newport postcode area.
Administrative Ward: Pontllanfraith
Administrative District: Caerphilly
Country: Wales
UK Parliament: Islwyn