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
0431796 Optus
0431425 Optus
0431171 Optus
0431303 Optus
0431904 Optus
0431286 Optus
0431289 Optus
0431201 Optus
0431818 Optus
0431780 Optus
0431427 Optus
0431468 Optus
0431058 Optus
0431292 Optus
0431005 Optus
0431069 Optus
0431130 Optus
0431122 Optus
0431310 Optus
0431812 Optus
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