Mobile Code 0400

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.

Canberra is the capital of Australia, the eighth largest city and the largest inland city.  Canberra has population of around 431,000 which account for 1.64% of Australia population. Canberra is inland between the cities of Sydney and Melbourne, nestled between Australia’s highest alpine mountains and the South East Coast of New South Wales.

There are six main types of phone numbers in Australia. The most commonly used types are landline and mobile phone. Mobile numbers are numbers that are usually used in cell phones and linked to SIM cards. It can be used when moving to a new city or country. Mobile phone numbers have their own prefixes which are not geographical and are completely portable between mobile operators. In Australia, the length of the mobile phone number is ten digits and it starts with 04, followed by eight digits.