Searhcing for the postcodes near 6421? There is one postcode which has the postcode number 6421 in Heerlen. 6421 is a postcode number in the place Heerlen within the municipalityHeerlen in the province Limburg. There is one street that has as postcode number 6421 in Heerlen.
There is 1 district that has the postcode number 6421, that is the district Wijk 20 Vrieheide-De Stack; .
These are the neighbourhoods and districts that have the postcode number 6421.