{"url":"https://openpostcodes.uk/CM3%209","type":"sector","sector":"CM3 9","area":"CM","district":"CM3","postcode_count":4,"councils":["Chelmsford"],"postcodes":[{"postcode":"CM3 9AT","url":"https://openpostcodes.uk/CM3%209AT"},{"postcode":"CM3 9BA","url":"https://openpostcodes.uk/CM3%209BA"},{"postcode":"CM3 9BB","url":"https://openpostcodes.uk/CM3%209BB"},{"postcode":"CM3 9BX","url":"https://openpostcodes.uk/CM3%209BX"}]}