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For example, a company could have the number 139999 and have the telephone company set it up so that calls made in Melbourne would route to their Melbourne number, calls made in Brisbane to their Brisbane number, and calls made anywhere else in Australia route to their Sydney number, all at a local charge cost to the caller.
It is usually written as (0XXX) YYY YYYY (For landlines registered in large metropolises, it is written in the format (0XXX) YYYY YYYY), where 0 is the trunk code, XXX is the area code (2 or 3 digits) and YYYY YYYY is the local number (7 or 8 digits). For example, (0755) XXXX YYYY indicates a Shenzhen number.
The format of telephone numbers in Australia has changed over time to allow for the expansion of the subscriber base as technology has improved. Introduction of area codes (pre-1990s) [ edit ] The introduction of subscriber trunk dialling was slow, partly because of the distances of exchanges in some areas and partly due to the use of manual ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
Australian films and television shows do not employ any recurring format for fictional telephone numbers; any number quoted in such media may be used by a real subscriber. The 555 code is used in the Balmain area of Sydney and the suburbs of Melbourne .
E.164 is an international standard ( ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks . E.164 defines a general format for international telephone numbers.
For example, a landline subscriber in the UK wishing to call Australia would first dial the following sequence: 00 (the call prefix used in the UK to access the international service), followed by 61 (the country calling code for Australia), followed by the national subscriber number (without the trunk prefix 0 used for dialing within Australia).
An old bakelite ash tray showing an example of a single digit phone number used in the early days of telecommunication. On 12 July 1906 the first Australian wireless overseas messages were sent between Point Lonsdale, Victoria and Devonport, Tasmania. Australia and New Zealand ratified the 1906 Berlin Radio-telegraph Convention in 1907.