States phone codes: Queensland:( 7); New South Wales:(2), Canberra:(2), South Australia:( 8); Victoria:( 3); Tasmania:(3); Northern Territory:( 8), Western Australia:( 8). 

Example: To call from outside Australia, Brisbane for example, the person must dial: (xx) Your phone provider code +  (61) Australia's code + (7) Brisbane code + the phone desired. 

Note that  to call on state from another inside Australia, you must put one Zero in front of the area code. Example: Calling from Sydney to Brisbane, dial ( 07) + the phone number. To call anywhere in the world from Australia, one must dial before: 0011 + the destiny country code + the code of the state or city + the desired phone number.