Postal code
Record in subdistricts.json
{ "code": "100402", "name_th": "สีลม", "name_en": "Si Lom", "district_code": "1004", "province_code": "10", "postal_codes": ["10500"]}From GeoThai/data v2026.10.22.
{ "code": "100402", "name_th": "สีลม", "name_en": "Si Lom", "district_code": "1004", "province_code": "10", "postal_codes": ["10500"]}From GeoThai/data v2026.10.22.