iiNet has identified the NBN as a key growth opportunity for the company as the rollout creates a "level playing field" for the Internet service provider in a presentation to investors.

This follows an indication from NBN Co chief operating officer, Greg Adcock, that NBN Co may look to purchase iiNet's Canberra fibre to the node network, TransACT.

The NBN Co purchase would follow its 2013 purchase the iiNet's fibre-to-the-premise network in Canberra.

NBN Co bought TransACT's fibre network covering around 8,500 premises for $9 million in September last year.

iiNet today outlined its plans to increase market share on the back of the NBN rollout in a Goldman Sachs presentation to investors.

The presentation revealed iiNet now had 36,000 NBN customers with 25 per cent market share in greenfield areas and 20 per cent market share in brownfield areas.

The break up of customers is currently 70 per cent fibre, 19 per cent satellite and 6 per cent wireless.

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The investor report said 70 per cent of customers were buying higher speeds than the 12 mbps entry level product.

It revealed less than 50 per cent of customers who signed up with iiNet for NBN services were new customers.

It also identified opportunities in the regional market of 1.5 million premises and the HFC market, which features heavily in NBN Co's plans following the government's revised approach, which would see a multi-technology mix.

This in contrast the to previous plan which would have been largely FttP.

"The HFC network coverage of 2.7 million premises will be open to more effective competition," he said.

"NBN roll out creates a level playing field for iiNet to compete on - all customers have the same speed decision - now based on product price and customers service."

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