The Japan-Guam-Australia (JGA) Cable System comprises JGA South and JGA North, interconnecting at a new cable landing station in Piti, Guam.

JGA South and JGA North are operated as separate cable systems. JGA South is supplied by Alcatel Submarine Networks (ASN), while JGA North is supplied by NEC Corporation.

JGA South (JGA-S) is a consortium cable. JGA South consortium includes AARNet, Google and RTI (RTI JGA Pte. Ltd. and RTI Connectivity Pte. Ltd.). Spanning approxiamately 7000km, the JGA South connects Sydney and Piti in Guam with a branch to Sunshine Coast of Queensland, with an initial design capacity of 36 Tbps (2*180*100Gbps) on 2 fiber pairs. On its Sydney to Guam Main Trunk, Google owns half fiber pair (25%) , AARNet owns a quarter fiber pair (12.5%), RTI JGA owns one and a quarter fiber pairs (62.5%). RTI JGA soly owns the branch to Sunshine Coast. RTI Connectivity serves as Asset Manager of RTI JGA pursuant to an Asset Management Agreement by and between the two companies. Consequently, RTI Connectivity controls the 62.5% voting and participation interests in the Main Trunk of JGA South. JGA South is the first new cable ever to land in Sunshine Coast of Queensland, on the east coast of Australia, outside of Sydney. In Guam, the JGA South lands at the GNC Cable Landing Station. In Sydney, the JGA South lands at the Brookvale Cable Landing Station.

JGA North (JGA-N), the 2700km segment between the Minami-Boso in Japan and Piti in Guam, is a private cable of RTI, through its affiliates RTI Solutions, Inc. (“RTI Solutions”), RTI JGA Pte. Ltd. (“RTI JGA”), and RTI Connectivity Pte.Ltd. (“RTI Connectivity”). RTI Solutions serves as the landing party in Guam. RTI JGA owns 100% of the wet segment of JGA North. RTI Connectivity controls the wet segment of the JGA North in its role as Asset Manager of RTI JGA. The JGA North cable consists of two fiber pairs, with an initial design capacity of 24 Tbps (2*120*100Gpbs). The JGA-North lands at the GNC CLS and data center in Piti, Guam, adjcent to the  Piti-I CLS. The Minamiboso cable landing station for JGA North is a new cable landing station owned and controled by NTT, which is built as terminal station for NTT's Jupiter cable system. The Minamiboso cable landing station will provide additional geographical diversity for U.S.-Japan traffic currently landing at KDDI's Chikura cable landing station and SoftBank's Maruyama cable landing station.

JGA South and JGA North were ready for service in March and July 2020 respectively.