Umoja

Overview

Umoja is a submarine cable system designed to connect South Africa and Australia, traversing the southern Indian Ocean. Owned by Google, the cable is expected to provide a direct, high-capacity link between the two countries, enhancing connectivity across the Southern Hemisphere. Scheduled to be ready for service in 2027, Umoja is poised to address a historically underserved corridor, offering a focused route that bypasses the more congested pathways through Asia or northern Africa. This system will contribute to the growing network of submarine cables that underpin global internet infrastructure, supporting data transmission for businesses, cloud services, and local internet users.

The cable’s name, "Umoja," which means "unity" in Swahili, reflects its role in bridging two geographically distant regions. By linking Amanzimtoti in South Africa with Mandurah in Australia, Umoja will create a direct path across the Indian Ocean, reducing latency and increasing bandwidth for users in both countries. This project highlights the increasing importance of direct, point-to-point international connectivity in the global digital economy.

Route and Landings

Umoja will land at two points: Amanzimtoti in South Africa and Mandurah in Australia. Amanzimtoti is a coastal town located on the KwaZulu-Natal coast, approximately 25 kilometers south of Durban. This region is a key hub for submarine cable landings in South Africa, benefiting from its proximity to major urban centers and existing telecommunications infrastructure. The choice of Amanzimtoti reflects its strategic position for connecting South Africa to international cable systems.

On the Australian side, Umoja will terminate at Mandurah, a coastal city in Western Australia situated about 70 kilometers south of Perth. Mandurah’s location on the Indian Ocean seaboard makes it an ideal landing point for cables traversing the southern Indian Ocean. The city is part of the broader Perth metropolitan area, which serves as a gateway for international connectivity to and from Australia. The route between these two landing points spans a vast expanse of the Indian Ocean, bypassing traditional cable routes that often run through Asia or the Middle East.

Ownership and History

Umoja is wholly owned by Google, a company that has significantly expanded its investment in submarine cable infrastructure over the past decade. Google’s ownership of Umoja aligns with its broader strategy of developing privately-owned cable systems to support its global network of data centers, cloud services, and internet platforms. By controlling its own cables, Google aims to optimize data flow, reduce latency, and ensure reliable connectivity for its users and clients worldwide.

The cable is part of a broader trend of single-operator systems designed to meet specific connectivity needs. Unlike consortium-owned cables, which often involve multiple stakeholders, Google’s sole ownership of Umoja allows for greater control over the cable’s design, deployment, and operation. The project was announced as part of Google’s ongoing efforts to enhance connectivity in underserved regions and to establish direct routes between key markets.

What Our Measurements Show

Our live monitoring of Umoja has recorded a single measured corridor, with a best and average round-trip time (RTT) of 649 milliseconds. These measurements reflect the cable’s unique positioning across the southern Indian Ocean, a vast and relatively underutilized corridor for submarine cables. The RTT values align with expectations for a direct link between South Africa and Australia, given the significant geographical distance covered by the system.

The cable’s performance highlights its potential to provide a reliable and low-latency connection between the two countries. While the system is not yet operational, these preliminary measurements underscore the importance of Umoja in bridging a gap in global connectivity. Once operational, the cable is expected to play a crucial role in supporting internet traffic, cloud services, and digital communication across the Southern Hemisphere.