{"url":"https://openpostcodes.uk/BL4","type":"district","district":"BL4","area":"BL","postcode_count":849,"councils":["Bolton"],"sectors":[{"sector":"BL4 0","url":"https://openpostcodes.uk/BL4%200","postcode_count":200,"admin_district":"Bolton"},{"sector":"BL4 4","url":"https://openpostcodes.uk/BL4%204","postcode_count":4,"admin_district":"Bolton"},{"sector":"BL4 7","url":"https://openpostcodes.uk/BL4%207","postcode_count":212,"admin_district":"Bolton"},{"sector":"BL4 8","url":"https://openpostcodes.uk/BL4%208","postcode_count":206,"admin_district":"Bolton"},{"sector":"BL4 9","url":"https://openpostcodes.uk/BL4%209","postcode_count":227,"admin_district":"Bolton"}]}