There is a planned network that is followed in Australia in order to assign different phone numbers to the individuals. The phone number in Australia is based on the numbering plan. It simply means the allocation of the phone number in Australia. It has been seen that Australia is divided into 4 large area codes. There is a trend of using mobile phones as 99% of the population has mobiles with them. The standard phone number in this region has 10digits with the first digit starting with a 0. This is the FNN that means the full national number. All the mobile numbers are 10 digits and they have to start with a 0. On the other hand the fixed line telephone number consists of the area code, which is of 2 digits.

In case of fixed line phones, there are different codes for different regions. After the area code the usual 8 digits follow. In the 8 digits the first 4 digits are the exchange numbers and the final four numbers are the line of exchange. Every exchange code has either 4 digits or 5 digits or six digits. It depends upon the area. Smaller the area, larger the exchange code number. In case of the mobile numbers the phone number starts with the 04 and is followed by the 8 digits. For example the number is 04yyyxxxxx. In this case the y stands for the network that the user is using.

Earlier the phone number in Australia was based on the network the person is using but with time the mobile number had no relationship with the network. In case of the landline numbers there is a use of the open dialing plan. In this case if two people who are talking with each other are from the same area then they have the same prefix. In this case they may dial the number without the prefix. In case of mobile numbers the prefix is important as it directs the phone to the particular location where they are dialing.

If a person is dialing an international number then the 0 is replaced by the country code. For example newsouth Wales has the country code of 612 and on the other hand Melbourne has the country of 613. This is done in order to avoid clashing of the numbers. Hence this is the plan that is followed in Australia and the plan is very simple and straight so as to avoid any sort of confusion or inter mixing of numbers.