
Mobile phone numbers in Australia typically have 10 digits, including the area code and local number. The first digit is usually a '4', indicating that it is a mobile number. For example, a mobile number in Melbourne might be 0412 345 678, where '0412' is the area code and '345 678' is the local number. When written for an international audience, the number is often written as +61 4XX XXX XXX.
| Characteristics | Values |
|---|---|
| Number of digits | 10 |
| First digit | 0 |
| Second digit | 4 |
| Country code | +61 |
| Area code | 02, 03, 07, 08, etc. |
| Local number | 4 digits |
| International format | +61 4xx xxx xxx |
| National format | 04xx xxx xxx |
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What You'll Learn

Australian mobile numbers have 10 digits
The Australian mobile number format is +61 (04xx) xxx-xxx, with the first two digits of the local number being specific to the city. For example, a mobile number in Melbourne might be 0412 345 678, where '0412' is the area code and '345 678' is the local number.
The country is divided into 2,054 geographic areas, called standard zone units. Each region is given a unique area code. For example, the Western and Central regions have '08' as their area code, followed by a 2-digit city-specific code like '62' for Perth.
Mobile numbers in Australia start with the digit '4', followed by an eight-digit local number. They may or may not be tied to a particular geographic area. The cost of calls to these numbers varies based on the caller's location.
The Australian Communications and Media Authority (ACMA) oversees the management of phone numbers in the country. They govern the allocation, transfer, surrender, portability, and usage rules for several telecom services.
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The first digit is typically '4'
Australian mobile numbers typically have 10 digits, including the area code. The first digit is usually '4', which indicates that the number is for a mobile phone service. For example, a mobile number in Melbourne might be 0412 345 678, where '0412' is the area code and '345 678' is the local number.
The '4' prefix is followed by an eight-digit local number. This numbering system for mobile devices was introduced in the 1990s with the rise of mobile phones. The Australian Communications and Media Authority (ACMA) defines and administers telephone numbers in Australia.
The '4' prefix is important for effective communication and business operations, as it ensures seamless connectivity within Australia and with international contacts. When calling an Australian number from overseas, the country code '+61' must be included, and the initial '0' is dropped. For instance, an Australian mobile number can be expressed as 0445 555 555 or +61 445 555 555.
The '4' prefix is also used for satellite phone services. Numbers beginning with ''014' are allocated for satellite systems, with '04' specifically used for MobileSat and Thuraya mobile satellite services. The demand for these services is not high, and many satellite phones now have regular mobile numbers starting with '04'.
The '4' prefix is a standard feature of Australian mobile numbers, providing a clear indication of the service type and facilitating efficient call routing. It is an essential component of the Australian phone number format, which includes the country code, area code, and local number.
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Mobile numbers start with '04' or '05'
Australian mobile numbers have 10 digits. They start with 04 or 05, with 04 being the more common prefix. The Australian Communications and Media Authority (ACMA) planned to introduce the "05" range for mobile numbers in 2017 when the "04" range was expected to be exhausted. However, no such numbers have been introduced as of 2025.
The "04" or "05" prefix indicates that the service required is a mobile number. When written for an international audience, the number is often written as +61 4xx xxx xxx or +61 5xx xxx xxx, respectively. The "+" indicates the international prefix, and "61" is the country code for Australia.
Within Australia, the trunk code "0" must be included before the mobile number. So, a mobile number in Australia would be written as 04xx xxx xxx. The "0" is not used for calls originated from locations outside Australia.
The "04" prefix is also used for satellite phones, which previously had a different numbering system. However, there is not a lot of demand for these services, and many satellite phones now have normal mobile phone numbers.
When writing mobile telephone numbers in Australia, it is conventional to group the digits into one chunk of 4 digits and then two chunks of 3 digits, as follows: 04xx xxx xxx. This format makes the number easier to read and use.
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Mobile numbers are written as +61 4xx xxx xxx for an international audience
Mobile phone numbers in Australia have 10 digits. They typically begin with "04" or "05", followed by eight digits. This "04" or "05" prefix indicates that the number is a mobile number.
When writing Australian mobile numbers for an international audience, the number is often written as +61 4xxxx xxx xxx. The +61 country code replaces the 0 trunk code, which is not used for calls originated from outside Australia.
For example, the mobile number 0412 345 678 can be written as +61 412 345 678 for an international audience.
It is important to note that mobile numbers in Australia are not tied to a particular geographic area, so they do not have a specific area code. However, the "04" or "05" prefix is unique to mobile numbers.
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Mobile numbers are written as 04xx xxx xxx when dialled within Australia
Mobile phone numbers in Australia are written as 04xx xxx xxx when dialled within the country. This is because Australian mobile numbers have 10 digits, including the area code, which always begins with 04.
The Australian mobile number format is +61 (04xx) xxx xxx when written in international format. The +61 is the country code, and the 04 indicates that the number is a mobile number.
The standard format for Australian mobile numbers is 04xx xxx xxx. This format is used when dialling a mobile number within Australia. The first four digits, including the 04, are the area code, and the remaining six digits are the local number.
When dialling an Australian mobile number from overseas, the international access code must be added before the country code. For example, when dialling from the US, the number would be dialled as 011 61 4xx xxx xxx.
It is important to note that mobile numbers in Australia do not have an area code in the traditional sense. The 04 prefix indicates that the number is a mobile number, but it does not specify a geographic area. This is in contrast to landline numbers, which have specific area codes such as 02 for New South Wales and 03 for Victoria.
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Frequently asked questions
Australian mobile numbers have 10 digits, including the area code and local number. The first digit is typically a '4', indicating that it is a mobile number.
To dial an Australian mobile number from within Australia, include the initial '0' and the 9-digit mobile number starting with '04'. For example, dial 04xx xxx xxx.
To dial an Australian mobile number from outside Australia, include the international access code (e.g. 011 in the USA or 00 in Europe), followed by the Australian country code (+61), and then the mobile number without the initial '0'. For example, dial +61 4xx xxx xxx.











































