6721JN is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469690215,"geom:latitude":52.00041,"wof:name":"6721JN","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404473893,"locality_id":101837743,"postalcode_id":891170197,"region_id":85687043}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":5.675675,"wof:id":891170197,"geom:type":"Polygon","wof:lastmodified":1469690215,"clustr:alpha":0.05,"wof:belongsto":[85687043,102191581,404473893,85633337,101837743],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.6754026413,51.9997215271,5.67600917816,52.0009803772","clustr:count":28,"clustr:area":4.3,"clustr:density":6.51,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"9058a1196d51c389efe3d303158743fd","wof:parent_id":101837743,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.29,"edtf:cessation":"uuuu"}