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
0431848 Optus
0431826 Optus
0431602 Optus
0431167 Optus
0431763 Optus
0431456 Optus
0431702 Optus
0431099 Optus
0431108 Optus
0431890 Optus
0431352 Optus
0431491 Optus
0431510 Optus
0431333 Optus
0431557 Optus
0431443 Optus
0431179 Optus
0431689 Optus
0431447 Optus
0431417 Optus
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