6645AD is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469689743,"geom:latitude":51.878199,"wof:name":"6645AD","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":404473875,"locality_id":101809853,"postalcode_id":891158987,"region_id":85687043}],"mz:is_deprecated":0,"geom:area":2.0E-6,"geom:longitude":5.710477,"wof:id":891158987,"geom:type":"Polygon","wof:lastmodified":1513366948,"clustr:alpha":0.05,"wof:belongsto":[85687043,102191581,404473875,85633337,101809853],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":15630.086925,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.70932579041,51.8775215149,5.71180582047,51.8791885376","clustr:count":16,"clustr:area":17.52,"clustr:density":0.91,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"2cd1e066572c4bd4a1453c924925ac21","wof:parent_id":101809853,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.54,"edtf:cessation":"uuuu"}