How to use Postcode.nl
On Postcode.nl you can find Dutch postcodes and addresses. You can search in different ways, both by address and by postcode.
Search by address
You enter: City [comma] street housenumber
For the best result, enter an address that is as complete as possible. For example, you are looking for the postcode of Kalverstraat number 1 in Amsterdam.
Search by Postcode
You enter: Postcode housenumber
For example, you search for the address associated with postcode 1012 NX. You enter the postcode, optionally with a house number.
Search by PO box
You can find the postcode associated with a PO box by searching as with a normal address.