The AJC Network (Australia Japan Cable Network) is a 12,700km submarine cable network connecting Australia, Guam and Japan, with two fiber pairs.

The AJC network was initially designed with 10 Gbps DWDM technology, with a design capacity of up to 64 waves per fibre pair over two fiber pairs. The AJC network runs through the six AJC cable landing stations, with two separate cable landing stations in each of  Japan, Australia and Guam. The AJC Network was ready for service on 30 December 2001.

The AJC network was upgraded the addition of 40G technology in mid 2012 and the addition of 100G technology in late 2013 and early 2014.  During 2018 AJC was upgraded with latest optical coherent technology to be equipped with some 5Tbps Australia-Guam-Japan. 

The Design Capacity of AJC is currently approximately 10Tbps.