2000 is a postalcode and its consensus geometry is derived from ausstat.
{"mz:is_ceased":0,"geom:latitude":-33.868125,"wof:name":"2000","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191583,"country_id":85632793,"county_id":102049151,"localadmin_id":404226357,"locality_id":101932003,"postalcode_id":504777389,"region_id":85681545}],"mz:is_deprecated":0,"ausstat:POA_CODE":"2000","geom:area":4.17E-4,"geom:longitude":151.207973,"wof:id":504777389,"ausstat:POA_NAME":"2000","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1480866343,"ausstat:SQKM":4.279443,"wof:belongsto":[85681545,102191583,404226357,85632793,101932003,102049151],"wof:concordances":{"gp:id":"12706662"},"wof:repo":"whosonfirst-data-postalcode-au","src:geom":"ausstat","wof:country":"AU","counts:names_preferred":0,"geom:area_square_m":4281098.369719,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"AU","counts:names_languages":0,"geom:bbox":"151.194739008,-33.8858130345,151.226099008,-33.8509199995","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"1d7fae791113e0e19b3498f4bde5338a","wof:parent_id":101932003,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}