Jeju-Mainland 3

Overview

Jeju-Mainland 3 is a regional submarine cable system that connects two landing points within South Korea. The total length of the cable is 236 km, and it was ready for service in the year 2000.

Route and Landings

Goseong-ri, South Korea

Mijo-myeon, South Korea

Ownership and Operators

The cable is operated by KT (Korea Telecom).

Status and Timeline

The Ready for Service (RFS) year for Jeju-Mainland 3 was 2000. The status of the cable is unknown.

Strategic Context

This submarine cable connects two locations within South Korea, contributing to the country's internal telecommunications infrastructure and supporting internet access and enterprise connectivity services. KT (Korea Telecom), a major player in South Korea’s telecommunications market, operates this cable as part of its network.

KT (Korea Telecom) has been a key provider in South Korea’s telecommunications landscape since 1987, offering services to both residential and business customers.

South Korea is known for its advanced technological infrastructure and high-speed internet access. The Jeju-Mainland 3 cable plays a role in this ecosystem by providing reliable connectivity within the country. Additionally, South Korea’s strategic position as a global technology hub means that its internal infrastructure supports not only domestic needs but also international data flows through nearby landing points on other submarine cables.

The corridor served by Jeju-Mainland 3 generally supports intra-country connectivity needs, including enterprise networks, government services, and consumer internet access. This cable is part of a broader network of submarine cables that facilitate the flow of data between different regions within South Korea, enhancing overall communication efficiency and reliability.