4421JA is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469681467,"geom:latitude":51.476294,"wof:name":"4421JA","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404474309,"locality_id":101809217,"postalcode_id":890956533,"region_id":85687037}],"mz:is_deprecated":0,"geom:area":1.0E-6,"geom:longitude":3.963649,"wof:id":890956533,"geom:type":"Polygon","wof:lastmodified":1469681467,"clustr:alpha":0.05,"wof:belongsto":[85687037,102191581,404474309,85633337,101809217],"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":"3.96272301674,51.4752922058,3.96451210976,51.4768753052","clustr:count":21,"clustr:area":28.21,"clustr:density":0.74,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"36e4d3536af3a69825cb21dd1ecd43c0","wof:parent_id":101809217,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.41,"edtf:cessation":"uuuu"}