About Coral Sea Cables

Coral Sea Cables is an independent atlas of the world’s undersea cable infrastructure. We map every submarine cable system we can document — who owns it, where it lands, what it cost, which ship laid it and which company built it — and we explain, in plain English, how the internet actually crosses oceans.

This domain has a story of its own. From 2018 to 2021, coralseacablesystem.com.au was the official project site for the Coral Sea Cable System (CS²) — the Australian-funded 4,700 km fibre-optic cable connecting Sydney to Port Moresby and Honiara, completed in December 2019. When the project moved to its permanent operator home, the domain lapsed. We picked it up and gave it a second life doing what its name always promised: talking about undersea cables. The original project site — the build diary, the media releases — is preserved unedited in our CS² archive.

Independence

Coral Sea Cables is an independent publication. We are not affiliated with the Coral Sea Cable Company, PNG DataCo, the Solomon Islands Submarine Cable Company, the Commonwealth of Australia, or any operator, supplier or government body we write about. If you need the CS² operator — for capacity, landing agreements or media — go to coralseacablecompany.com.

How we compile the data

Our records are built from primary sources: operator and supplier announcements, government and development-bank procurement records, regulatory filings, industry-body registries and the public record, cross-checked and cited on each page. Where a fact traces to Wikipedia’s cable documentation we attribute it on the page (CC BY-SA). We draw our own schematic route lines — precise seabed routes are not public, and ours are illustrative, not navigational.

Corrections

Cable data changes constantly — systems get lit, upgraded, cut, repaired and retired. If we have something wrong, tell us via the contact page and we’ll fix it and note the correction on the page.

How the site makes money

Display advertising and sponsorship, clearly labelled when present, plus industry directory listings. Sponsors get no say in editorial coverage — see our editorial standards and disclosure.

Contact

Corrections, tips or partnership enquiries: send them via our contact form.