1. 011 - International Access Code for calling outside of North America.
2. 61 - Country code for Australia.
3. Area code - The two-digit area code of the Australian city you are calling.
4. Local phone number - The eight-digit local phone number.
For example, to call a landline number in Sydney, Australia, you would dial:
011-61-2-12345678
For mobile phones in Australia, you would use the same format, but starting with the digit 04 instead of 02:
011-61-412345678