TPU

Overview

TPU is a transpacific submarine cable system spanning approximately 13,470 km. It connects the United States, Guam, the Northern Mariana Islands, Taiwan, and the Philippines, serving a corridor that links North America with several western Pacific territories and island nations. The cable is owned by Google and is planned to enter service in 2026.

Route and Landings

In the United States, TPU lands at Eureka, California. In Guam, the cable has a landing at Tanguisson Point. The Northern Mariana Islands are served by a landing at Tinian. In Taiwan, the cable comes ashore at Dawu. The Philippines landing is located at Claveria.

Ownership and Operators

TPU is wholly owned by Google. Google has built a substantial portfolio of privately owned submarine cable infrastructure across the Pacific and Atlantic basins, reflecting the connectivity demands of its global cloud and services platforms.

Status and Timeline

TPU is planned to be ready for service in 2026. Once operational, it will extend Google's transpacific cable network to include direct connectivity to the Northern Mariana Islands and the Philippines alongside existing links to Guam, Taiwan, and the United States.

Regional Context

The transpacific corridor served by TPU is home to several long-established cable systems. EAC-C2C, which has been in service since 2002, also reaches the Philippines and Taiwan, while Bulikula — sharing Guam, the Northern Mariana Islands, and the United States as landing territories with TPU — is similarly planned for 2026. At 13,470 km, TPU is considerably shorter than many of its transpacific peers, reflecting its more focused geographic reach across the western Pacific rather than spanning the full ocean basin.

Performance measurements across 96 ping tests over the past 60 days show an average round-trip latency of 129.0 ms, with a best recorded result of 42.1 ms.

Strategic Role

TPU will provide direct submarine cable connectivity between the continental United States and four Pacific destinations: Guam, the Northern Mariana Islands, Taiwan, and the Philippines. By landing at five points across this corridor, the cable distributes connectivity across a stretch of the western Pacific that includes both U.S. territories and sovereign nations. Its planned 2026 service date aligns it with contemporaneous investment in Pacific cable infrastructure, including the separately developed Bulikula system serving overlapping territories.