{"url":"https://openpostcodes.uk/BT51","type":"district","district":"BT51","area":"BT","postcode_count":816,"councils":["Causeway Coast and Glens","Mid Ulster"],"sectors":[{"sector":"BT51 3","url":"https://openpostcodes.uk/BT51%203","postcode_count":264,"admin_district":"Causeway Coast and Glens"},{"sector":"BT51 4","url":"https://openpostcodes.uk/BT51%204","postcode_count":265,"admin_district":"Causeway Coast and Glens"},{"sector":"BT51 5","url":"https://openpostcodes.uk/BT51%205","postcode_count":287,"admin_district":"Causeway Coast and Glens"}]}