The INDIGO cable system spans 9200km, consists of two distinct cable projects, Indigo West of 4600km connecting Singapore to Perth via Jakarta, and Indigo Central of 4850km connecting Perth to Sydney.

The INDIGO consortium comprises AARNet, Google, Indosat Ooredoo, Singtel, SubPartners, and Telstra.

The INDIGO cable system is supplied by Alcatel Submarine Networks (ASN), with a total project cost of approximately US$200million.

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. INDIGO cable system features new spectrum-sharing technology, for consortium members to share and own capacity on 1/4 fiber pair basis, deploy its own SLTE, upgrade their networks and enable capacity increases on demand independently.

The INDIGO cable system comprises two sub-systems

• INDIGO WEST, connecting Perth with Singapore, 4600km, 2 fiber pairs and total system capacity of 40Tbps.
• INDIGO Central, connecting Perth with Sydney, 4850km, 2 fiber pairs and total system capacity of 40Tbps.

In Australia, the INDIGO WEST lands at Floreat Beach in Perth, and the INDIGO Central lands at Coogee Beach in Sydney. The terminal equipment of INDIGO cable system is hosted at NextDC's P1, P2, S1, and S2 datacentres across Perth and Sydney.

In Singapore, the INDIGO WEST cable lands at Singtel's Changi CLS.

The INDIGO cable system has been ready for service since the end of May 2019.