Tonga Domestic Cable Extension (TDCE)

Tonga Domestic Cable Extension (TDCE) is a submarine cable system operating within Tonga, with landing points at Neiafu, Nuku'alofa, Pangai. It provides dedicated submarine fiber capacity between these locations, supporting telecommunications, internet access, and enterprise connectivity. Submarine cables in this region contribute to a mesh of redundant paths that keep internet traffic flowing even when individual systems are damaged or under maintenance. GeoCables tracks this cable using RIPE Atlas measurements from four probes in Minsk, Almaty, Tbilisi, and Jerusalem, comparing live RTT against historical baselines to catch performance shifts early.