8231CK is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469695807,"geom:latitude":52.518478,"wof:name":"8231CK","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":-1,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"locality_id":101751873,"postalcode_id":907030273,"region_id":85687049}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":5.470048,"wof:id":907030273,"geom:type":"Polygon","wof:lastmodified":1513298234,"clustr:alpha":0.05,"wof:belongsto":[102191581,101751873,85633337,85687049],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":1710.071881,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.46975421906,52.5180587769,5.47025156021,52.519241333","clustr:count":19,"clustr:area":2.8,"clustr:density":6.79,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"89153b3c35e86cd9e19a94fc6ec8b577","wof:parent_id":101751873,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.19,"edtf:cessation":"uuuu"}