The latest extensions to NBN Co's rollout plan have been revealed.
Last December, the NBN was expected to reach another 1.9 million premises by June 2016.
The latest update to the construction plan shows a further 550,000 homes and businesses in areas where the rollout is expected to begin by September 2016.
The new areas include Noosa (Queensland), Mt Gambier and Whyalla (SA), Bendigo (Victoria), Bathurst (NSW) and Broome (WA).
The metropolitan areas joining the list are Docklands (Melbourne), Castle Hill (Sydney), and Hilton and Bassendean (Perth).
The new areas have yet to appear on the NBN interactive rollout map as it only shows areas where the rollout has got at least as far as the build preparation stage.
NBN Co did not mention the technologies that will be used in the additional areas, only that the forecast does not include HFC or the Long Term Satellite Service. That leaves Fibre to the Node, Fibre to the Building for apartment and office blocks, and fixed wireless for areas with relatively low population density.
The announcement takes the NBN's planned footprint to more than 3.1 million homes and businesses. More than 870,000 premises are already able to connect.