The Australia-Singapore Cable (ASC) is a 4,600-km submarine cable system linking Perth, Australia and Singapore via Jakarta in Indonesia as well as Christmas Island, providing the first 100Gbps high-speed connection from Western Australia to South East Asia.

The ASC cable system consists of four fiber pairs, designed with 100*100Gpbs DWDM technology, for a total system capacity of 40Tbps, upgradable to 60Tbps. The ASC system is supplied by Alcatel Submarine Network (ASN).

The ASC project costs approximately US$170million.

The Australia Singapore Cable (ASC) project was launched by Nextgen Networks and Vocus jointly, based on a 50/50 joint venture. In April 2017, Vocus Communications completed the acquisition of Nextgen Networks to own 100% of the ASC. 

Indonesian telecommunications firm XL Axiata is the landing partner for ASC's landing in Jakarta and Christmas Island.

The ASC cable system has been ready for service since September 2018.