Every Australian postcode, with every suburb in it

• New South Wales623 postcodes · 5,590 suburbs and localities · 290 PO box and mail-centre postcodesNSW
• Victoria706 postcodes · 3,540 suburbs and localities · 44 PO box and mail-centre postcodesVIC
• Queensland444 postcodes · 3,958 suburbs and localities · 18 PO box and mail-centre postcodesQLD
• Western Australia415 postcodes · 1,929 suburbs and localities · 87 PO box and mail-centre postcodesWA
• South Australia341 postcodes · 2,064 suburbs and localities · 8 PO box and mail-centre postcodesSA
• Tasmania117 postcodes · 812 suburbs and localities · 3 PO box and mail-centre postcodesTAS
• Australian Capital Territory25 postcodes · 159 suburbs and localities · 4 PO box and mail-centre postcodesACT
• Northern Territory48 postcodes · 446 suburbs and localities · 2 PO box and mail-centre postcodesNT

NBN by postcode: retailers price NBN nationally, so the page states today's cheapest plan on each speed tier and sends you to NBN Co's address check for the one thing that changes at your door, the technology on the line. Electricity by postcode: the postcode's distribution network sets the price, so the page shows the cheapest and median published plan on that network, re-read from the regulator nightly. Postcodes the regulator's listings do not map to a network have no electricity page, and the directory says so rather than guessing.