Aussie Broadband has seen strong demand with around 5.5% of its customer base jumping onto the 1Gbps plans[1] the ISP began to offer in May.
"In our view, much stronger [demand] than we actually anticipated in those plans," Britt told the Joint Standing Committee on the National Broadband Network on Friday morning.
"We think it could get to 10% within a couple of years."
As it currently stands though, NBN is only offering[2] its 500-1000Mbps plans on 18% of its network, which consists of all its fibre to the premises footprint, and an initial 7% of the HFC network.
"We can provide it on some parts of the HFC network, it's roughly 9% of the HFC footprint today, and NBN has committed to increasing that footprint further," Britt said.
"We believe in time, it might be available to the fibre to the curb footprint as well, the technology certainly supports it, it's something that NBN needs to enable.
"So if that all flowed through, then probably about 50% of the footprint in total would be able to get those sorts of speeds."
Britt said there was pent-up demand in HFC areas for gigabit speeds, but users were waiting for a capable connection.
The Aussie Broadband chief added that there are "very few people that actually need that kind of speed".
"It's one of those things. If it's available, and I've got the income to support it -- because I mean that ultrafast plan is AU$150 a month sort of thing -- then I'll want it and I have it. And when they do an update, they might use it and they'll use it for like a download [that] might take 10