ARTERIA Networks Corporation (“ARTERIA”) and AT TOKYO Corporation (”AT TOKYO”) have entered into an agreement on the installation and use of communication cable facilities, and set to install the first optical fiber submarine cable to traverse the Tokyo Port.

This new cable will link the Toyosu-Ariake and Shibaura-Shinagawa areas, where many IT companies are concentrated, using the Horizontal Directional Drilling method (“HDD method”).

AT TOKYO will establish its Chuo Center #3 in the Shibaura-Shinagawa area by July 2024 as a network connection hub alongside its existing data centers, supporting information infrastructure in Tokyo where major financial institutions, content providers, and telecommunications companies from not only Japan, but also from Asia and rest of the world converge.

ARTERIA will connect the IT companies in Toyosu-Ariake area to the new AT TOKYO data center in the Shibaura-Shinagawa area via a high-capacity, low-latency, and shortest cable route, thereby supporting businesses in Tokyo that serves as a hub for high-tech and international financial industries.

With the installation of this optical fiber submarine cable, the Toyosu-Ariake area and the Shibaura-Shinagawa area will be connected via redundant land and marine routes, increasing the resilience and availability of the network infrastructure. Relying solely on existing land routes poses certain risks such as flooding and liquefaction during disasters, leading to potential network disruptions in emergencies.

Enhanced availability through redundant land and marine routes,
Image courtesy: ARTERIA


Using the HDD method allows a continuous underground pipeline in submarine areas that ensures high-speed, high-capacity fiber optic communications while preventing cable damage by ship’s anchors, etc. It offers a secure alternative route to the land based routes.

Compared to land based routes, the Tokyo Port route will provide a straight and direct connection between the Toyosu-Ariake and Shibaura-Shinagawa areas, enabling low latency communications.

Using the communications services provided by ARTERIA, it is easy to connect to the Chiba Minamiboso area and the North Ibaraki area, where cable landing stations are concentrated, supporting the demand for overseas wide-band, low-latency connectivity.

International connectivity, Image courtesy: ARTERIA


High-capacity, low-latency communications provide the backbone for cutting-edge technological industries such as autonomous driving, industrial robots, drone delivery, and telehealth services.

Furthermore, in industries where high-capacity communication is essential, such as video streaming and the rapidly growing e-sports gaming sector, low-latency network procurement is in constant demand. This new route will enhance the overall quality and user satisfaction of services offered by these industries.