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
0431679 Optus
0431911 Optus
0431332 Optus
0431807 Optus
0431459 Optus
0431636 Optus
0431950 Optus
0431161 Optus
0431905 Optus
0431314 Optus
0431106 Optus
0431256 Optus
0431754 Optus
0431844 Optus
0431868 Optus
0431298 Optus
0431589 Optus
0431664 Optus
0431469 Optus
0431617 Optus
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