Naval Computer and Telecommunications Station Far East
A U.S. Navy military command headquartered in Yokosuka, Japan, operating and defending mission-critical naval networks and communications across the Indo-Pacific.
Last updated September 26, 2026
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Overview
The Naval Computer and Telecommunications Station (NCTS) Far East is a United States Navy military unit headquartered in Yokosuka, Japan. It consists of nine geographically dispersed sites located across Japan, South Korea, Singapore, and Diego Garcia. Its stated mission is to "operate and defend mission critical, Navy warfighting networks and communications systems necessary for U.S. Naval, Joint, and Coalition Commanders to conduct secure command and control in the United States Indo-Pacific Command (USINDOPACOM) theater of operations." As a Navy command rather than a commercial enterprise, NCTS Far East functions as the naval telecommunications and network operator for a wide swath of the Indo-Pacific, providing the communications backbone that supports fleet operations, joint forces, and coalition partners. The command traces its origins to the Naval Communications Facility, Yokosuka, Japan, which was commissioned on 8 January 1951 following the outbreak of the Korean War. Over the following decades it underwent several redesignations and relocations, reflecting the changing technological and strategic landscape of naval communications. In December 1952 the U.S. Naval Radio Receiving Facility Kami Seya, Japan was completed, and the Security Group Department and general-service receivers were moved there; during the Korean War the rest of NAVCOMMFAC Yokosuka also moved to Kami Seya. In 1960 the command was redesignated U.S. Naval Communications Facility Japan and relocated to Yokosuka, and the following year it became U.S. Naval Communications Station, Japan. In 1991 the command was renamed U.S. Naval Computer and Telecommunications Station, Japan, acknowledging the increasing reliance on computers and telephones in telecommunications. That same year, NTCCs Atsugi and Sasebo and NAVCOMM Dets Okinawa and Misawa were functionally transferred to NAVCOMTELSTA Japan. In 1993, Base Communications Offices (BCOs) at Atsugi, Sasebo, and Yokosuka were transferred to the command. In 1995 it received its current name, U.S. Naval Computer and Telecommunications Station, Far East, following the transfer of the Communications Department from Commander Fleet Activities Chinhae, Korea, and the establishment of NAVCOMM Det Chinhae. Today NCTS Far East operates as a distributed command with sites spread across the western Pacific and Indian Ocean. Its responsibilities include the operation and defense of Navy warfighting networks and communications systems, enabling secure command and control for U.S. Naval, Joint, and Coalition commanders within the USINDOPACOM area of responsibility. The command's official website is hosted under the U.S. Navy's public web presence.
History
The Naval Computer and Telecommunications Station (NCTS) Far East is a United States Navy military unit headquartered in Yokosuka, Japan. It consists of nine geographically dispersed sites in Japan, South Korea, Singapore, and Diego Garcia. Its mission is to "operate and defend mission critical, Navy warfighting networks and communications systems necessary for U.S. Naval, Joint, and Coalition Commanders to conduct secure command and control in the United States Indo-Pacific Command (USINDOPACOM) theater of operations." The command was originally designated as Naval Communications Facility, Yokosuka Japan, and was commissioned on 8 January 1951, after the outbreak of the Korean War. In December 1952, U.S. Naval Radio Receiving Facility Kami Seya, Japan was completed, and the Security Group Department and general-service receivers were moved to Kami Seya. During the war, the rest of NAVCOMMFAC Yokosuka moved to Kami Seya. In 1960, the command was re-designated U.S. Naval Communications Facility Japan and relocated to Yokosuka. The following year, the command was again re-designated as U.S. Naval Communications Station, Japan. This name lasted until 1991, when it was changed to U.S. Naval Computer and Telecommunications Station, Japan to acknowledge the increasing reliance on computers and telephones in telecommunications. Also in 1991, NTCCs Atsugi and Sasebo and NAVCOMM Dets Okinawa and Misawa were functionally transferred to NAVCOMTELSTA Japan. 1993 saw the transfer of Base Communications Offices (BCOs) at Atsugi, Sasebo and Yokosuka to NAVCOMTELSTA Japan. In 1995 another name change to U.S. Naval Computer and Telecommunications Station, Far East occurred, with the transfer of the Communications Department from Commander Fleet Activities Chinhae, Korea to this command and the establishment of NAVCOMM Det Chinhae.
- 1995
Renamed U.S. Naval Computer and Telecommunications Station, Far East; Communications Department transferred from Commander Fleet Activities Chinhae, Korea, and NAVCOMM Det Chinhae established.
- 1993
Base Communications Offices (BCOs) at Atsugi, Sasebo and Yokosuka transferred to NAVCOMTELSTA Japan.
- 1991
Renamed U.S. Naval Computer and Telecommunications Station, Japan; NTCCs Atsugi and Sasebo and NAVCOMM Dets Okinawa and Misawa functionally transferred to the command.
- 1961
Re-designated as U.S. Naval Communications Station, Japan.
- 1960
Re-designated U.S. Naval Communications Facility Japan and relocated to Yokosuka.
- 1952
U.S. Naval Radio Receiving Facility Kami Seya, Japan completed in December; Security Group Department and general-service receivers moved there.
- 1951
Commissioned as Naval Communications Facility, Yokosuka Japan on 8 January, after the outbreak of the Korean War.
Products and positioning
A U.S. Navy military command providing mission-critical network and communications support across the Indo-Pacific theater.
Product categories. Navy warfighting networks · Communications systems · Secure command and control support
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