Curaçao is an autonomous island that is part of the Netherlands. In 10-10 2010 the Netherlands Antilles ceased to exist and address desciption of Curacao changed.
It used to be like this Street name + number, Willemstad, Curacao, Netherlands Antilles.
But after 10-10-2010 it became like this
Streetname + number, Willemstad, Curacao
However, for some reason in OSM Curacao is seen as NL. This is not correct. The Nominitem Geocoder shows 12.126031,-68.890388 as Van Engelenweg, Willemstad, 0000AA, NL.
This is definitely not right. We have no zip code here in Curaçao and NL should be CW.