Home Postcode finder NT King Ash Bay King Ash Bay postcode NT King Ash Bay is a locality in Northern Territory covered by postcode 0854. Postcode 0854 State or territory Northern Territory (NT) Region Darwin Add a free King Ash Bay business listing Be the first listing in King Ash Bay Common questionsWhat is the postcode for King Ash Bay?King Ash Bay, NT has the postcode 0854.What state is King Ash Bay in?King Ash Bay is in Northern Territory (NT).Does postcode 0854 cover more than one suburb?Yes. Postcode 0854 covers 2 localities, so the postcode alone does not identify King Ash Bay. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.