Southern Cross owns and operates a Trans-Pacific submarine cable network connecting Australia, New Zealand, Fiji, Hawaii to the internet backbone on the United States West Coast providing carrier neutral services to Carriers, Internet and Content Service Provider and Corporations. Southern Cross is run by a team of highly skilled management and technical people that pride themselves on delivering market relevant products and solutions, and have over 100 years of experience in the international telecommunications community.

Southern Cross and its associated companies was formed in 1997, born from an agreement between Telecom New Zealand (now Spark Trading), Optus and MFS Globenet (subsequently acquired by WorldCom) to sponsor a submarine cable link between Australasia and the United States West Coast, due to unexpected rapid growth of the Internet resulting in an imminent international capacity bottleneck for carriers in Australia and New Zealand.

Southern Cross Cables Limited and Pacific Carriage Limited are based in Bermuda. Southern Cross also has offices in Wellington and Auckland, New Zealand and Sydney, Australia. Southern Cross is an independent entity and is owned by Spark Trading (50%), SingTel Optus (40%) and Verizon Business (10%).