Home Postcode finder NT Arumbera Arumbera postcode NT Arumbera is a locality in Northern Territory covered by postcode 0870. Postcode 0870 State or territory Northern Territory (NT) Region Adelaide Add a free Arumbera business listing Be the first listing in Arumbera Common questionsWhat is the postcode for Arumbera?Arumbera, NT has the postcode 0870.What state is Arumbera in?Arumbera is in Northern Territory (NT).Does postcode 0870 cover more than one suburb?Yes. Postcode 0870 covers 20 localities, so the postcode alone does not identify Arumbera. Browse other postcodes in Northern Territory , or widen the search to every Australian postcode.