Telephone numbers in Australia plan (including the "Trunk Access Code"), presented in domestic format. (Geographical region boundaries do not exactly follow State borders.) 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. 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
Area code 709 acquired the last independent company in 1988. Area code 709 is expected to be exhausted by 2024, at which point Newfoundland and Labrador will receive an overlay area code and 10-digit dialing will become necessary in the province. Area code 879 has been reserved as the second code for the purpose of this overlay, although the relief has been deferred indefinitely. For now, this and the three other Canadian area codes, 506, 807 and 867 still use 7-digit dialling and have yet to be overlaid. Area code 709 Area code 709 is the telephone area code in the Canadian province