Prefix 03-8002

Australia (officially the Commonwealth of Australia) is a sovereign country, located in Oceania between the Indian Ocean and the South Ocean. With an area of 7,692,024 square kilometres, is the largest country in Oceania and the sixth-largest country in the world. Australia's population was 25,918,400 people at 2021, equivalent to 0.33% of the world's total population. Australia is divided into six states and three internal territories: South Australia, New South Wales, Victoria, Western Australia, Queensland, and Tasmania. Australia's capital is Canberra, and most populous city is Sydney. A prosperous developed country, Australia is the world's 13th largesteconomy.

Melbourne, the capital and largest city of Victoria, is also the second largest city in Australia, with an area of 8,831 square kilometres and a population of 5,159,211 people.  Melbourne is a coastal city in southern Australia, the cultural, arts and industrial center of Australia, a world-famous tourist city and an international metropolis.

The Australian telephone numbering plan describes the allocation of phone numbers in Australia. According to the current telephone  numbering plan, Australia is divided geographically into four large area codes. Geographical region boundaries do not exactly follow state borders, and some of these geographic region cover more than one state and territory. Currently, area code 03 belongs to state Victoria and Tasmania.

There are six main types of phone numbers in Australia. The most commonly used types are landline and mobile phone. A geographic number is a telephone number which digit structure is linked to a specific city. Geographic numbers are mainly for local or landline services. They are usually assigned to home and corporate devices. In Australia, fixed line telephone numbers consist of the two digits area code and an eight digits local number.