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
0431744 Optus
0431578 Optus
0431516 Optus
0431335 Optus
0431927 Optus
0431170 Optus
0431582 Optus
0431231 Optus
0431866 Optus
0431068 Optus
0431620 Optus
0431992 Optus
0431479 Optus
0431762 Optus
0431281 Optus
0431144 Optus
0431389 Optus
0431203 Optus
0431410 Optus
0431097 Optus
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