Hawaiki Cable spans 15,000 km, linking Australia, New Zealand, American Samoa, New Caledonia, Tonga and other Pacific Islands, Hawaii and Oregon, on the U.S. West Coast.

The Hawaiki Cable System has a initial design capacity of 30Tbps on its trans-pacific route offers, offer the following connecctions: 

• Australia to Hawaii, 2 fiber pairs, 20Tbps
• New Zealand to Hawaii, 1 fiber pair, 10 Tbps
• Hawaii to Hillsboro, 3 fiber pairs, 30 Tbps
• Australia to New Zealand, 1 fiber, 12 Tbps
• Branching Unit to America Somoa, 2 fiber pairs, 100-200Gbps
• Branching Unit to New Caledonia (Tomoo Cable), 2 fiber pair, up to 2Tbps per fiber pair
• Branching Unit to Tonga, 383km, the second international cable for Tonga

The main trunk of Hawaiki cable system is 100% owned and constructed by Hawaiki Submarine Cable LP (HSC LP), headquartered in Auckland, New Zealand. HSC LP was acquired by BW Digital Pte. Ltd in 2021. The total initial investment in Hawaiki Cable is approximately US$300 million (NZD 445m).

HSC LP and its affiliates owns and/or controls the cable landing stations ("CLS") in Australia, New Zealand, Hawaii and Oregon, as follows:

• Australia: CLS in Sydney is colocated at Equinix SY4.
• New Zealand: HSC LP builds and owns a new CLS in  Mangawhai Heads.
• Hawaii: HSC USA builds and owns a new CLS in Kapolei, with DRFortress acting as landing party in Hawaii.
• Oregon: CLS in Pacific City is leased from Tillamook Lightwave, who owns the CLS. ACS Cable Systems, LLC operates the CLS in Oregon pursuant to an agreement with HSC USA. The SLTE of Hawaiki cable system is terminated at Flexential's Brookwood data center in Hillsboro.

American Samoa Telecommunications Authority ("ASTCA"), the government-owned incumbent local exchange carrier in the U.S. Territory of American Samoa, owns, constructs and operates the branch to American Samoa and corresponding landing station.

Research and Educational Advanced Network New Zealand (Reannz), owned by Government of New Zealand, was the first anchor customer of Hawaiki Cable. As of July 2014, Government has entered into the anchor tenancy contract with Hawaiki Cable, valued $65million. The total cost of the tenancy includes an initial contribution of $15 million and annual fees over the 25-year period. The Government has provided the $15 million contribution from an appropriation set aside for purchasing an anchor tenancy on a new transtasman and trans-Pacific submarine cable. Reannz will meet the annual fees out of its existing revenues. 

In October 2016, Amazon AWS purchased capacity in the Hawaiki cable system,  making it AWS' first investment in an international submarine cable system.

The Hawaiki submarine cable system was ready for service on Jul. 20, 2018.

In September 2018, Australia-based Palisade Investment Partners acquired 30% interest in HSC LP and obtained de facto control of HSC LP and the Hawaiki Cable System.

In June 2019, Hawaiki Cable opened new subsea route to the US with direct access to Los Angeles, based on the most easterly segment of the SEA-US cable.

In December 2019, Hawaiki Cable announced to add a branch to New Caledonia, named ‘Tomoo Cable’, with the Société Calédonienne de Connectivité Internationale (SCCI) as the landing party in New Caledonia.

In July 2021, BW Group Limited, through its affiliate company BW Digital Pte. Ltd., acquired 100% shares of HSC LP and the Hawaiki Cable System. The acquisition was subject to applicable regulatory filings and approvals and was completed in May 2022. Local press reports indicate that the sale price of the transaction, from the Palisade-led consortium, to BW Group, was appoximately US$350m.

In June 2024, the Australian and New Zealand governments co-funded a USD$32 million (NZ$ 42 million) investment to build the Tonga Hawaiki Cable Branch System, to establish a second international subsea cable linking Tonga and land at the existing Vava’u CLS for the Tonga Domestic Cable. The Haiwaiki Tonga submarine cable landed in Tonga in March 2026.

The Tuʻi Vavaʻu (the Tonga Hawaiki Cable Branch System) was ready for service on May 26, 2026, being the second international submarine cable connecting Tonga.