Australia's newest ASX-listed telco, Aussie Broadband, has laid its first fibre connections in Melbourne, the first step in a $67 million transformation of the business from broadband retailer to fibre network operator.

Co-founder and managing director Phillip Britt said the plan was to boost the company's margins by bypassing Telstra's fibre backhaul network, which plugs the national broadband network into the internet via data centres.