BT Highlands and Islands Submarine Cable System

BT Highlands and Islands Submarine Cable System is a domestic submarine cable network within United Kingdom, connecting 40 coastal and island locations including Achnaba, Aikerness Bay, Ardbeg Point, Ardgour, Ardmair, and 35 more. The system provides essential telecommunications infrastructure for communities that would otherwise depend entirely on satellite or microwave links. The United Kingdom, as an island nation and a major global internet hub, hosts one of the densest concentrations of submarine cable landings in the world. GeoCables monitors this system's performance through regular RIPE Atlas probe measurements, analyzing RTT patterns to detect degradation before it impacts end users.