{"postcode_type":"office","jis":"13103","old":"108","new":"1088346","prefecture_kana":null,"city_kana":null,"suburb_kana":null,"prefecture":"東京都","city":"港区","suburb":"三田","street_address":"２丁目１９−３０","office":"慶應義塾大学出版会　株式会社","office_kana":"ケイオウギジユクダイガクシユツパンカイ カブシキガイシヤ","office_roman":"Keiougijiyukudaigakushiyutsupankai kabushikigaishiya","post_type":"office","is_separated_suburb":null,"is_koaza":null,"is_chome":null,"is_include_area":null,"status":null,"reason":null,"prefecture_roman":null,"city_roman":null,"suburb_roman":null,"handling_post_office":"高輪","multiple_numbers":"none","created_at":"2026-10-30T08:15:02.000Z","updated_at":"2026-10-30T08:15:02.000Z","url":"https://postcode.teraren.com/postcodes/1088346.json","location":null}