6031AK is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469687434,"geom:latitude":51.287004,"wof:name":"6031AK","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":-1,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404474507,"locality_id":1158818001,"postalcode_id":891103759,"region_id":85687033}],"mz:is_deprecated":0,"geom:area":9.0E-6,"geom:longitude":5.759919,"wof:id":891103759,"geom:type":"Polygon","wof:lastmodified":1513403774,"clustr:alpha":0.05,"wof:belongsto":[85687033,102191581,404474507,85633337,1158818001],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":71370.931701,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.7571554184,51.283782959,5.76477241516,51.291759491","clustr:count":29,"clustr:area":37.82,"clustr:density":0.77,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"05c03563a0323129f15eb1d55bdb20b1","wof:parent_id":1158818001,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":2.04,"edtf:cessation":"uuuu"}