<Li> 1 Non-geographic numbers (mostly for domestic use only) and override prefixes . </Li> <P> The current numbering plan would appear to be sufficient to cope with potential increase in demand for services for quite some time to come . The 06 and 09 area codes are completely unused . In addition, each current area code has large number "ranges" unallocated . </P> <P> When dialling from outside Australia, after dialling the appropriate International Access Code it is necessary to dial the Country Code for Australia (61) followed by the nine digit "National' Significant' Number". (The + symbol is used to represent International Access Code, e.g. + 61 3 xxxx xxxx for a number in Victoria / Tasmania or + 61 4xx xxx xxx for a "Mobile" number). Some numbers beginning with a 1 may be dialled without any replacement, after dialling the required International Access Code and the Country Code for Australia (+ 61). (see below) </P> <P> Australian "Local Area" numbers are of eight digits in length, conventionally written in the form xxxx xxxx . "Mobile" (Cell Phone) numbers are written in the form of ten digits in length since, when dialed within Australia, the Trunk Access Code 0 must be included, plus 4, which indicates the Service required is a "Mobile" number . Mobile numbers are conventionally written 04xx xxx xxx . If a landline or mobile number is written where it may be viewed by an international audience (e.g. in an email signature or on a website) then the number is often written as + 61 x xxxx xxxx or + 61 4xx xxx xxx respectively . </P>

What is australia's country code for mobiles