The INDIGO cable system is formerly named as APX-West.

In April 2017, AARNet, Google, Indosat Ooredoo, Singtel, SubPartners, and Telstra announced they have entered into an agreement with Alcatel Submarine Networks (ASN) to build the INDIGO cable system that will connect Singapore, Indonesia and Australia.

The INDIGO cable system consists of two distinct cable projects, Indigo West connecting Singapore to Perth via Jakarta, and Indigo Central connecting Perth to Sydney.

The INDIGO cable system is designed with two fiber pairs, with a design capacity of around 36 Tbps and option to expand in the future. 

The INDIGO cable system is scheduled to be completed by Q1 2019.