How many telephone area codes are there in Australia?

Australia has twelve telephone area codes, which are:

02 - New South Wales

03 - Victoria

07 - Queensland

08 - Western Australia

048 - South Australia

036 - Tasmania

040 - Northern Territory

047 - Australian Capital Territory

089 - Christmas Island

081 - Cocos (Keeling) Islands

016 - Norfolk Island

028 - Heard and McDonald Islands