Tanguisson Point, Guam is a submarine cable landing point in Guam (coordinates 13.5436°, 144.8124°). It serves 6 submarine cable systems, making it a significant node in Guam's international connectivity infrastructure.
Connected submarine cables
| Cable | RFS | Length | Owners |
|---|
| Halaihai | 2027 | 17,483 km | Google |
| Proa | 2026 | 2,891 km | Google |
| TPU | 2026 | 13,470 km | Google |
| Asia-America Gateway (AAG) Cable System | 2009 | 20,000 km | AT&T, BT, Bharti Airtel, … |
| Australia-Japan Cable (AJC) | 2001 | 12,700 km | AT&T, NTT, Softbank, … |
| Mariana-Guam Cable | 1997 | 268 km | PTI Pacifica |
Operators landing at Tanguisson Point, Guam
Cables landing at Tanguisson Point, Guam are operated by 23 distinct consortium partners and carriers, including AT&T, BT, Bharti Airtel, Eastern Telecom, Ezecom, Globe Telecom, Google, Indosat Ooredoo, NTT, National Telecom, and 13 others. Each cable is typically jointly owned by a consortium of tier-one carriers and hyperscale operators who share construction costs and capacity; the operator mix reflects both regional incumbents and global players with interest in the routes served by this landing point.
Connectivity profile
From Tanguisson Point, Guam, international traffic can reach 15 countries through 6 cable systems. Destinations include Australia, Brunei, Chile, China, French Polynesia, Guam, Japan, Malaysia and 7 more. With multiple redundant paths, traffic at this landing point can reroute through alternative cables if any single system experiences an outage.
Monitoring status
GeoCables recorded 5 monitoring events on cables serving Tanguisson Point, Guam in the past 90 days. Our monitoring network continuously samples latency from external probes to targets reachable via these cables.
About the cables
- Halaihai (2027) — Halaihai is an intercontinental submarine cable system connecting Oceania and South America, with 5 landing points across 4 countries including Tahiti Iti, French Polynesia, Tahiti Nui, French Polynesia, Tanguisson Point, Guam, Tinian, Northern Mariana Islands and others. Read more →
- Proa (2026) — Proa is a cross-regional submarine cable connecting Japan, Guam, Northern Mariana Islands. Its 3 landing points at Shima, Tanguisson Point, Tinian bridge the networks of East Asia, Oceania, providing an important path for international data traffic. Read more →
- TPU (2026) — TPU is a cross-regional submarine cable connecting Philippines, Taiwan, United States, Guam, Northern Mariana Islands. Its 5 landing points at Claveria, Dawu, Eureka, Tanguisson Point, Tinian bridge the networks of Southeast Asia, East Asia, North America, providing an important path for international data traffic. Read more →
- Asia-America Gateway (AAG) Cable System (2009) — Asia-America Gateway (AAG) Cable System is a major intercontinental submarine cable system spanning 9 countries across Southeast Asia, North America, East Asia. With 10 landing points — including Changi North, Keawaula, La Union, Lantau Island, Mersing, and 5 more — it forms one of the backbone links carrying international internet traffic between continents. Read more →
- Australia-Japan Cable (AJC) (2001) — Australia-Japan Cable (AJC) is a cross-regional submarine cable connecting Japan, Australia, Guam. Its 6 landing points at Maruyama, Oxford Falls, Paddington, Shima, Tanguisson Point, and 1 more bridge the networks of East Asia, Oceania, providing an important path for international data traffic. Read more →
- Mariana-Guam Cable (1997) — Mariana-Guam Cable is a point-to-point submarine cable linking Northern Mariana Islands and Guam. Landing at Rota, Saipan, Tanguisson Point, Tinian, it provides a direct fiber-optic path between the two countries, serving as both a primary data route and a redundancy option for neighboring cable systems. Read more →
Submarine cable data from TeleGeography. Monitoring metrics updated continuously by GeoCables.
Which submarine cables land at Tanguisson Point in Guam?
Six submarine cable systems land at Tanguisson Point: the Asia-America Gateway (AAG) Cable System, Halaihai, Proa, Mariana-Guam Cable, Australia-Japan Cable (AJC), and TPU.
When was the first cable system to land in Tanguisson Point, Guam?
The first cable system to land at Tanguisson Point, Guam, was the Halaihai cable, which came online in 2017.
Which oceans does this submarine cable landing point bridge?
Tanguisson Point bridges the Pacific Ocean, connecting Guam with other regions such as North America and Asia.
What are some notable operators present at Tanguisson Point in Guam?
Google is one of the notable operators present, owning the Halaihai cable system. Other cables serve various purposes and may have different ownership.
Why was this specific place chosen for submarine cable landing points?
Tanguisson Point in Guam was chosen due to its strategic geographic location in the Pacific Ocean, providing a reliable and efficient connection between North America and Asia. The geology of the area also supports secure cable installation.