The NAC was established in March 1991 by AUSTEL, a predecessor of the Australian Communications and Media Authority (ACMA), and meets on average four times a year to assist the ACA manage Australia's numbering resource.
The ACMA seeks to work closely with representatives of users of numbers and the telecommunications industry, in formulating and administering numbering policy. The NAC provides one forum through which this occurs.
Members of the NAC include user groups-including those representing residential telephone users, small business and corporate users-carriage service providers (including the three largest carriers, Telstra, Optus and Vodafone), and a number of industry associations and government representatives.
Under its terms of reference, the NAC provides advice to the ACMA with the aim of improving benefits to suppliers and users of carriage services, to facilitate competition and in particular: