{"url":"https://openpostcodes.uk/HA4","type":"district","district":"HA4","area":"HA","postcode_count":1138,"councils":["Hillingdon","Harrow"],"sectors":[{"sector":"HA4 0","url":"https://openpostcodes.uk/HA4%200","postcode_count":219,"admin_district":"Hillingdon"},{"sector":"HA4 4","url":"https://openpostcodes.uk/HA4%204","postcode_count":15,"admin_district":"Hillingdon"},{"sector":"HA4 6","url":"https://openpostcodes.uk/HA4%206","postcode_count":225,"admin_district":"Hillingdon"},{"sector":"HA4 7","url":"https://openpostcodes.uk/HA4%207","postcode_count":256,"admin_district":"Hillingdon"},{"sector":"HA4 8","url":"https://openpostcodes.uk/HA4%208","postcode_count":221,"admin_district":"Hillingdon"},{"sector":"HA4 9","url":"https://openpostcodes.uk/HA4%209","postcode_count":202,"admin_district":"Hillingdon"}]}