New Zealand

Australia and New Zealand · NZL

New Zealand sits at the end of long Pacific routes, served by a handful of active submarine cables linking it to Australia, the United States and beyond. Its connectivity picture reflects both geographic isolation and deliberate investment in diverse paths.

Connectivity at a glance

Cable systems
6active
Landing points
0
Resilience score
54

Cable systems serving New Zealand

CableStatusReady for serviceLengthDesign capacity
Southern Cross Cableactive2000—>20 Tbit/s (Jan 2020, based on 100G+ Technology)
ANZAC Cable Systemactive———
ANZCANactive———
Hawaikiactive———
TASMAN 1active———
TASMAN 2active———

Landing points

Landing point records for New Zealand are being compiled.

An island nation at the edge of the Pacific

New Zealand's position in the south-west Pacific shapes everything about how it connects to the rest of the world. Separated from its nearest large neighbour, Australia, by the Tasman Sea, and from the United States by the breadth of the Pacific Ocean, the country depends entirely on submarine cables for its international bandwidth. There is no terrestrial fallback, no land border through which a fibre route might quietly enter.

Six active cables serve New Zealand according to the Coral Sea Cables register: the ANZAC Cable System, ANZCAN, Hawaiki, Southern Cross Cable, TASMAN 1, and TASMAN 2. The Southern Cross Cable, which entered service in 2000, was a landmark investment for the country, opening a high-capacity trans-Pacific route at a time when demand for international bandwidth was accelerating sharply. It remains one of the foundational links in New Zealand's cable portfolio.

What the cable mix suggests about resilience

The presence of six distinct systems is a reasonable indicator of deliberate path diversity. Two cables carrying the TASMAN designation suggest redundant routes across the Tasman Sea toward Australia — a corridor that carries not only traffic destined for Sydney and beyond, but also onward connections into the Indian Ocean and Southeast Asian networks. Hawaiki adds a second trans-Pacific option, reducing reliance on any single system for traffic moving toward North America.

The ANZAC Cable System and ANZCAN extend New Zealand's reach further, though their precise routes and current capacities are not yet fully documented in this register. That gap matters: understanding which landing points these cables share, and where their onward paths diverge, is essential to assessing how genuinely independent the redundant routes are. Cables that share a landing station or a common terrestrial segment between the beach manhole and the exchange introduce a single point of failure that the number of cable names alone does not reveal.

Landing points and the limits of the current record

No landing points are documented in this register for New Zealand at this stage. Until that layer is complete, it is not possible to map the full topology — which cables land where, whether any co-locate at the same facility, and how traffic moves from the cable station into the national network. That work is ongoing.

What the cable list does confirm is that New Zealand is not dependent on a single system. Six active cables across trans-Tasman and trans-Pacific corridors represent a meaningful base of diversity for a country whose geography makes submarine infrastructure the only viable foundation for international connectivity.