Kitadaito Island

Kitadaito Island cable is a 410 km submarine system connecting one of Japan's most remote inhabited islands — located approximately 360 km east of Okinawa Main Island in the Philippine Sea — to the broader Okinawa telecommunications network. Completed in 2022 and funded by Okinawa Prefecture, the cable was built by NEC and its subsidiary OCC Corporation, who have completed multiple submarine cable sections totaling ~720 km across the Okinawa region. Kitadaito Island has a population of roughly 500-600 people, making this cable a notable example of government-funded digital inclusion infrastructure for remote island communities. GeoCables monitors this route using RIPE Atlas probes with automated anomaly detection.