EonFibre Adds 400G Trans-Tasman Data Links
The upgrade gives data centres and carriers higher-capacity transport between New Zealand and Australia as AI and cloud demand grows.
Updated on Nov. 3, 2026 in Data Centers
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EonFibre has expanded its Trans-Tasman network to offer 400G connectivity between New Zealand and Australia, aimed at data centre operators, hyperscalers, cloud providers, carriers and enterprises. The service is shipped and available alongside existing international bandwidth products.
Why it matters
Demand for moving larger volumes of data across the Tasman is rising with AI, cloud and data centre growth, and this expansion adds the transport capacity to meet it. The company says the investment positions it to serve future demand as it grows.
The expansion is a company-announced 400G service, and the source provides no benchmark against earlier Trans-Tasman capacity or independent performance testing. The programme covered installation, commissioning and end-to-end testing across the international and domestic transport path, but test results are not published in the source.
The players
EonFibre
A New Zealand fibre network operator with more than 11,000km of fibre, supplying dark fibre, managed wavelengths and Ethernet on a wholesale, carrier-neutral basis.
Tasman Global Access
A submarine cable system co-owned by EonFibre that links New Zealand and Australia.
The details
EonFibre added new optical infrastructure, the light-based equipment that carries data over glass fibre, along with additional terrestrial transport links that connect international cable systems to its New Zealand network. Customers can use the 400G service, a link capable of carrying 400 gigabits per second, alongside existing international bandwidth products. The programme covered installation, commissioning and end-to-end testing across both the international and domestic transport path before the service was offered.
Timeline
- EonFibre announced the Trans-Tasman 400G expansion on November 3, 2026.
The Tech Race
EonFibre's 400G Trans-Tasman service positions it among carriers building high-capacity links to serve AI and cloud workloads in the Asia-Pacific region. The source does not name a specific competing carrier or roadmap to compare against.
Data centre operators, cloud providers and enterprises in New Zealand and Australia can now buy 400G capacity across the Tasman alongside existing international products. The source does not state pricing or a timeline for customer onboarding.
The takeaway
Trans-Tasman capacity is being upgraded to keep pace with AI and cloud data growth. Watch for pricing and customer uptake announcements from EonFibre to see how quickly the 400G link is adopted.
Further reading
For broader context on the infrastructure behind this link, see Data Centers.
Source note: This article includes information reported by IT Brief Australia.
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