2181SP is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469672024,"geom:latitude":52.293124,"wof:name":"2181SP","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":101807029,"postalcode_id":890716625,"region_id":85687041}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":4.588123,"wof:id":890716625,"geom:type":"Polygon","wof:lastmodified":1513580583,"clustr:alpha":0.05,"wof:belongsto":[102191581,101807029,85633337,85687041],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"geom:area_square_m":76.142988,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"4.58787727356,52.292842865,4.58835124969,52.2933959961","clustr:count":10,"clustr:area":36.15,"clustr:density":0.28,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"da26b40e3d3a825ee6627c3438b463d5","wof:parent_id":101807029,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.09,"edtf:cessation":"uuuu"}