Diego Garcia, British Indian Ocean Territory

Diego Garcia, British Indian Ocean Territory is a submarine cable landing point in British Indian Ocean Territory (coordinates -7.3333°, 72.4167°). It serves 1 submarine cable system, making it a single-cable landing in British Indian Ocean Territory's international connectivity infrastructure.

Diego Garcia is the largest island of the Chagos Archipelago. It has been used as a joint UK–U.S. military base since the 1970s, following the expulsion of the Chagossians by the UK government. The Chagos Islands are a British overseas territory, though a treaty to transfer sovereignty from the UK to Mauritius was signed on 22 May 2025, with a provision that the military base at the island would remain under British control for at least 99 years. The agreement may be renewed for an additional 40 years after the initial 99-year period, and for an additional period thereafter. The UK government expected the treaty to be ratified sometime in 2026. The UN Committee on the Elimination of Racial Discrimination has expressed "deep concern" at the terms of the deal. Wikipedia

Connected submarine cables

Connectivity profile

From Diego Garcia, British Indian Ocean Territory, international traffic can reach 3 countries through 1 cable system. Destinations include Australia, Cocos (Keeling) Islands, Oman. This location depends on a single cable system — a characteristic that makes it strategically sensitive to physical disruptions.

Monitoring status

No monitoring incidents were recorded on cables serving Diego Garcia, British Indian Ocean Territory in the past 90 days — all connected systems remained within normal latency thresholds. Our monitoring network continuously samples latency from external probes to targets reachable via these cables.

About the cables

• Oman Australia Cable (OAC) (2022) — Oman Australia Cable (OAC) is an intercontinental submarine cable system connecting Middle East and Oceania, with 5 landing points across 4 countries including Barka, Oman, Diego Garcia, British Indian Ocean Territory, Perth, WA, Australia, Salalah, Oman and others. The cable provides cross-continental connectivity, offering an important route for data traffic between Middle East and Oceania. Read more →

Submarine cable data from TeleGeography. Geographic context from Wikipedia. Monitoring metrics updated continuously by GeoCables.