6671MC is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469689902,"geom:latitude":51.919075,"wof:name":"6671MC","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":404474651,"locality_id":101808581,"postalcode_id":891163075,"region_id":85687043}],"mz:is_deprecated":0,"geom:area":4.3E-5,"geom:longitude":5.713442,"wof:id":891163075,"geom:type":"Polygon","wof:lastmodified":1513366657,"clustr:alpha":0.05,"wof:belongsto":[85687043,102191581,404474651,85633337,101808581],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":326755.147159,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.69763755798,51.9167633057,5.72337245941,51.9206352234","clustr:count":13,"clustr:area":710.32,"clustr:density":0.02,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"226f6bd97bbbc0a448153ce7d7520542","wof:parent_id":101808581,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":3.45,"edtf:cessation":"uuuu"}