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
0431698 Optus
0431505 Optus
0431033 Optus
0431555 Optus
0431751 Optus
0431126 Optus
0431725 Optus
0431234 Optus
0431593 Optus
0431474 Optus
0431414 Optus
0431787 Optus
0431688 Optus
0431270 Optus
0431710 Optus
0431499 Optus
0431453 Optus
0431597 Optus
0431587 Optus
0431319 Optus
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