Nelson-Levin

Overview

The Nelson-Levin submarine cable is a regional telecommunications link within New Zealand. Spanning a total length of 212 kilometers, it connects the North Island to the South Island, facilitating data and communication exchange between the towns of Levin and Nelson. The cable became operational in 2001, marking an important step in strengthening New Zealand's domestic connectivity. Its role is primarily to support local internet access, enterprise connectivity and redundancy within the national network infrastructure.

This cable is part of New Zealand’s broader effort to ensure robust and reliable telecommunications links across its geographically dispersed regions. By connecting two coastal cities on opposite sides of the Cook Strait, the Nelson-Levin cable provides a critical pathway for digital communication and data transfer within the country.

Route and Landings

The Nelson-Levin cable links the North Island and South Island of New Zealand, landing at two key locations:

• Levin, located on the southwestern coast of the North Island
• Nelson, situated on the northern coast of the South Island

The route of the cable crosses the Cook Strait, a notoriously challenging body of water due to its strong currents and variable weather conditions. This strait separates the two main islands of New Zealand and is a vital corridor for both transportation and communications infrastructure. The cable’s landing points were strategically chosen to connect Levin, a growing regional center near the capital city of Wellington, with Nelson, a hub for tourism and agriculture on the South Island.

By linking these two regions, the Nelson-Levin cable not only facilitates inter-island communication but also supports economic activities and community connectivity. The cable’s placement underscores the importance of bridging New Zealand's geographic divides to ensure seamless communication between its islands.

Ownership and History

The Nelson-Levin cable is owned and operated by Spark New Zealand, one of the country’s leading telecommunications providers. Spark New Zealand has played a significant role in developing and maintaining the nation’s telecommunications infrastructure. The cable was officially ready for service in 2001, a period when New Zealand was expanding its digital connectivity to meet growing demand for internet and telecommunication services.

While specific details about the cable’s construction and operational history are limited, its deployment reflects the strategic importance of bolstering domestic connectivity within New Zealand. The choice of Levin and Nelson as landing points highlights the need to connect key population centers and economic regions on both islands. This cable is part of Spark New Zealand’s broader efforts to ensure reliable and high-capacity communication links across the country.

What Our Measurements Show

Our live monitoring of the Nelson-Levin cable provides insights into its performance. The cable is measured across 18 distinct corridors, reflecting its capacity to handle traffic between various points along its route. The best recorded round-trip time (RTT) for data transmission is 46 milliseconds, while the average RTT is 115 milliseconds. These figures indicate the cable's ability to support low-latency communication, which is essential for modern internet and enterprise applications.

Although the cable's operational status is not explicitly documented, the measured performance suggests that it continues to play a role in New Zealand's telecommunications ecosystem. The RTT metrics highlight the cable's efficiency in bridging the North and South Islands, ensuring reliable connectivity for the communities it serves. This performance is crucial for maintaining robust communication links in a country where geographic challenges make submarine cables a vital part of the infrastructure.