nightcliff postcode nt Home ›› Postcode Finder ›› NT ›› Nightcliff Nightcliff local listingsThe suburb of Nightcliff is located in NT and has a postcode of 810. Free nightcliff business listing! 1Nightcliff High SchoolRyland Rd 08 898508502Adwintage Aralia Street 04066119303St Paul's Primary School20 Cummins St 08 89851911 View more business listings in nightcliff Search and find other Postcodes in Northern Territory or widen the search to Postcodes in Australia.