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
Lisburn telephone exchange code exchange. For example, the post office in Dromore was "Dromore 201". When STD was introduced to the area in the early 1970s, the local towns and villages around Lisburn all scrapped their three digit numbers (with the exception of Stoneyford) and added an extra three digits. These towns used 0846 + six digits. Dialling a number any of the aforementioned exchanges, from another area code was achieved by simply using "(0846) xxxxxx". However Lisburn, which already had four and five digit numbers, used the code "084 62". To call "Lisburn 2201"/"Lisburn 77712" from another area code (outside 0846), one dialled