Hosan-ri: A Quiet Gateway to Ulleung Island
Hosan-ri, located on South Korea's eastern coastline, is a small yet significant landing point for submarine cable connectivity. Unlike major hubs such as Busan, which hosts 10 cables and serves as a bustling international gateway, Hosan-ri is home to just one cable: the
Ulleung-Mainland 2. This modest infrastructure reflects the unique role Hosan-ri plays in connecting the mainland to Ulleung Island, a remote volcanic outpost in the East Sea.
The Ulleung-Mainland 2 Cable: Stitching Together Isolation
The Ulleung-Mainland 2 cable, operational since 2016, spans 164 km and exclusively serves South Korea. Its chain connects Hosan-ri on the mainland to Ulleung, ensuring reliable communication and data transfer for the island's residents and businesses. With no international links, this cable is entirely domestic, underscoring its purpose: to bridge the geographical isolation of Ulleung Island with the mainland's economic and social networks.
For Ulleung Island, this connection is indispensable. The island's rugged terrain and remote location make physical access challenging, but the Ulleung-Mainland 2 cable ensures that digital access remains uninterrupted. Whether it's enabling e-commerce, supporting local government operations, or connecting families, this cable is a lifeline for modern life on the island.
Hosan-ri's Role in South Korea's Cable Network
South Korea boasts an extensive submarine cable network, with 17 cables landing across 10 points. Hosan-ri ranks in the upper 70% of these landing points by cable count, though it pales in comparison to hubs like Busan or Geoje. Its single cable reflects its specialized role in domestic connectivity rather than international data traffic.
Regional peers such as Goheung, Gunsan, and Mijo-myeon also host just one cable each, highlighting a pattern of smaller landing points serving specific domestic purposes. Hosan-ri's focus on Ulleung Island sets it apart, as it directly supports a remote community rather than acting as a node in broader national or international networks.
Latency Insights: Reliable Performance Across Distances
GeoCables' latency measurements provide a unique perspective on Hosan-ri's performance. Across 23 checks from 9 source cities, the average round-trip latency was 257 ms, with the best observed latency at 78 ms. While these figures are higher than those of major international hubs, they reflect the cable's domestic focus and the challenges of connecting remote areas like Ulleung Island.
For residents and businesses relying on this connection, these latency numbers demonstrate a dependable link that supports daily activities, from video calls to file transfers. Though not optimized for high-speed international traffic, the Ulleung-Mainland 2 cable fulfills its mission of connecting isolated communities to the mainland.
Conclusion: A Small Point with a Big Purpose
Hosan-ri may not be a major player in South Korea's submarine cable network, but its role is indispensable for Ulleung Island. With just one cable landing here, its focus is clear: to ensure that even the most remote corners of South Korea remain connected to the mainland. In a country renowned for its technological prowess, Hosan-ri exemplifies how infrastructure can serve specialized yet essential purposes.