 For example, postcode 2620 covers both a locality in NSW ("Gundaroo") as well as a locality in the ACT ("Hume"), and postcode 0872 covers a number of localities across WA, SA, NT and QLD.Three locations (Mingoola, Mungindi and Texas) straddle the NSW-Queensland border (so same town name and postcode on both sides).Jervis Bay Territory, once an exclave of the ACT but now a separate territory, is geographically located on the coast of NSW.