A statement from Vocus said the construction of the ASC had taken about two years, after more than five years of planning. A total of 4600 kilometres of cable were laid, at time extending kilometres down to the ocean bed.
The total cost was US$170 million (A$235 million) and more than 60 staff had been involved in getting things up and going, the company added.
The ASC was switched on nine days ahead of its scheduled Friday opening, because of a major disruption on the Sea-Me-We3 submarine cable between Perth and Singapore.
Vocus Group chief executive and managing director Kevin Russell said on Friday: "This has been a true cross-business effort and brought together people from across the Group – from New Zealand to Sydney, to Perth and into Singapore.
"It has been a mighty effort and today is a landmark day in the way in which Australia connects to Asia and beyond.”
The company said from Friday, the ASC would move to full operational specification to connect the recently-upgraded Australian terrestrial network and offer a significant boost to Australia’s international connectivity capacity.
“The Vocus ASC is now fully operational and has been very successfully supported by industry. We have sold more than 2.5Tbps of capacity, including to a global OTT player, and have an excellent pipeline,” said Russell.
“Today is not just about ASC going live. It’s about a new place for Vocus, to become a significant enabler of the transit of data to the fastest growing data region on the globe and recognises the growing requirements for affordable and trusted connectivity with our closest trading partners in Asia.”