20218 is a postalcode and its consensus geometry is derived from frgov.
{"mz:is_ceased":0,"geom:latitude":42.494701,"wof:name":"20218","counts:names_total":0,"wof:placetype":"postalcode","frgov:DEP":"20","frgov:ID":"20218","frgov:_COL6":1416.8124,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633147,"county_id":102069011,"localadmin_id":404392387,"macrocounty_id":404228063,"macroregion_id":404227453,"postalcode_id":421298871,"region_id":85683493}],"mz:is_deprecated":0,"frgov:SURF":299.204857,"geom:area":0.03282,"geom:longitude":9.165577,"wof:id":421298871,"frgov:LIB":"Ponte-Leccia","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1480939059,"wof:belongsto":[85683493,102191581,85633147,404392387,404228063,404227453,102069011],"wof:concordances":{"gp:id":"12723587"},"wof:repo":"whosonfirst-data-postalcode-fr","src:geom":"frgov","wof:country":"FR","counts:names_preferred":0,"frgov:POP2010":3220,"gp:parent_id":"12597140","geom:area_square_m":2.99228231899645E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FR","counts:names_languages":0,"geom:bbox":"9.05800910826,42.3876167859,9.32754600192,42.6597692132","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"212bb6484b2c2f479e235731253575d0","wof:parent_id":404392387,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}