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
0431199 Optus
0431148 Optus
0431976 Optus
0431131 Optus
0431713 Optus
0431767 Optus
0431770 Optus
0431711 Optus
0431637 Optus
0431026 Optus
0431574 Optus
0431990 Optus
0431200 Optus
0431877 Optus
0431687 Optus
0431849 Optus
0431525 Optus
0431093 Optus
0431021 Optus
0431622 Optus
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