Home Postcodes by state NT 0880 Postcode 0880 0880 is the postcode for 5 localities in NT: Gapuwiyak, Gove, Gunyangara, Nhulunbuy and Yirrkala. Localities with postcode 0880GapuwiyakNTGoveNTGunyangaraNTNhulunbuyNTYirrkalaNT Postcode 0880 State or territory Northern Territory (NT) Localities 5 Council area East Arnhem; Unincorporated NT Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 0872 · Postcode 0885