01226 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":42.481683,"wof:name":"01226","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102084369,"localadmin_id":404476097,"postalcode_id":554696913,"region_id":85688645}],"mz:is_deprecated":0,"lbl:latitude":42.481119,"mz:postal_locality_alt":["Stockbridge","Pittsfield","Hinsdale"],"geom:area":0.00752,"geom:longitude":-73.139848,"wof:id":554696913,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1611184670,"wof:belongsto":[102191575,85633793,102084369,404476097,85688645],"wof:concordances":{"gp:id":"12758386"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"2389072","geom:area_square_m":6.8578903172657E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-73.199248,42.412521,-73.038851,42.541067","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-73.135073,"wof:geomhash":"35e8ca64a5ca7375404a391a8260a066","wof:parent_id":404476097,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Dalton"}