8231JJ is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469695811,"geom:latitude":52.518044,"wof:name":"8231JJ","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":907030387,"region_id":85687049}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":5.474608,"wof:id":907030387,"geom:type":"Polygon","wof:lastmodified":1513298249,"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":1643.903191,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.47375440598,52.5175056458,5.47537851334,52.5183753967","clustr:count":22,"clustr:area":46,"clustr:density":0.48,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"4a8ccb0de6f5fcad82cd52a16195baf8","wof:parent_id":101751873,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.25,"edtf:cessation":"uuuu"}