AARNet, Australia’s Academic and Research Network, announced recently the launch of high-bandwidth services delivering one terabit per second on the AARNet spectrum of the new Japan-Guam-Australia South cable system (JGA South) connecting Sydney, Australia and Piti, Guam. AARNet is the landing party in Sydney for the JGA South cable system and owns spectrum of one quarter fiber pair on the JGA South cable system.

JGA South cable system is owned and operated by a consortium comprising AARNet, Google and RTI. Spanning approxiamately 7000km, landing in Sydney, Sunshine Coast of Queensland and Piti in Guam, with an initial design capacity of 36 Tbps (2*180*100Gbps) on 2 fiber pairs. AARNet is the landing party in Sydney, and lands the JGA South at Brookvale CLS owned by SCCL Australia Limited. Google is the landing party in Guam and lands the JGA South at the Piti-I CLS. RTI partners with Sunshine Coast Regional Council which purposely builds and owns a cable landing station in Sunshine Coast for the landing of JGA South. AARNet has 12.5% share of ownership (equivalently a spectrum of 1/4 fiber pair) on the main trunk connecting Sydney and Guam.

Accroding RTI, the JGA South was ready for service in March 2020. Interconnecting JGA North and JGA South in Guam, RTI establishs PoP-PoP connectivity between Equinix SY4 data center in Sydney and Equinix TY2 data center in Tokyo, as well as other data centers.


JGA North & JGA South
JGA North & JGA South, Source: RTI


Lighting JGA South extends the reach of the AARNet network into North Asia and provides AARNet with additional connectivity options across the Pacific Ocean via Guam to North America.

The new JGA South link complements AARNet’s investment in the Indigo subsea cable link connecting Sydney, Perth and Singapore, and improves the diversity and resilience of dedicated high-performing international connectivity for big science, research and education.

JGA South along with other long term investments in international infrastructure, provides AARNet with the control to meet the future growth in collaborative research and transnational education between Australia and its important partners in Asia and beyond.