Mobile phone numbers begin with 04, followed by eight digits. e.g. 04yy yxx xxx. The y-digit codes are allocated per network, although with the introduction of number portability, there is no longer a fixed relationship between the mobile phone number and the network it uses. New numbers are still allocated to phone companies in blocks, so a new number will generally still be on its "home" network.

Within Australia, mobile numbers must always be dialed with all 10 digits, no matter where they are being called from. 04 is a prefix, not an "area code", as such.

 

Area Code 0431 Details and Prefixes
General Details about Area Code 0431
Country Australia
Capital City Canberra
Time Zone UTC+08:00 - UTC+10:00
Phone Type Mobile

Area Code 0431 Prefixes

Prefix Mobile Phone Company
0431615 Optus
0431501 Optus
0431792 Optus
0431119 Optus
0431665 Optus
0431370 Optus
0431341 Optus
0431901 Optus
0431195 Optus
0431145 Optus
0431886 Optus
0431168 Optus
0431174 Optus
0431326 Optus
0431814 Optus
0431993 Optus
0431228 Optus
0431127 Optus
0431293 Optus
0431290 Optus
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