3161EW is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469676653,"geom:latitude":51.859688,"wof:name":"3161EW","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":404474263,"locality_id":101754737,"postalcode_id":890837151,"region_id":85687041}],"mz:is_deprecated":0,"geom:area":4.9E-5,"geom:longitude":4.444134,"wof:id":890837151,"geom:type":"Polygon","wof:lastmodified":1513580211,"clustr:alpha":0.05,"wof:belongsto":[85687041,102191581,404474263,85633337,101754737],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":371206.872573,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"4.44047927856,51.8559112549,4.44927597046,51.8658294678","clustr:count":37,"clustr:area":346.51,"clustr:density":0.11,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"6ffc499c3411f930dd75efc6ac22cd2e","wof:parent_id":101754737,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":2.54,"edtf:cessation":"uuuu"}