6617BM is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469689655,"geom:latitude":51.850841,"wof:name":"6617BM","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404473953,"locality_id":101808599,"postalcode_id":891157229,"region_id":85687043}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":5.669414,"wof:id":891157229,"geom:type":"Polygon","wof:lastmodified":1469689655,"clustr:alpha":0.05,"wof:belongsto":[85687043,102191581,404473953,85633337,101808599],"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":"5.66913223267,51.8506660461,5.66968250275,51.8510437012","clustr:count":6,"clustr:area":10.82,"clustr:density":0.55,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"b65c7b14089e9681b573ca334dfe3e05","wof:parent_id":101808599,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.12,"edtf:cessation":"uuuu"}