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Naval Computer and Telecommunications Station (NCTS) Yokosuka, Japan
NCTS Far East Yokosuka Menu


Please learn more about our detachments below. 

Congratulations on your orders to Naval Computer and Telecommunications Station Far East Detachment Diego Garcia, the "The Footprint of Freedom." You should be receiving your welcome aboard letter and package through your chain of command. The letter will provide you with your sponsor's name, telephone number, and email address. 

Command Duty Officer:   011-(246) 370-2001
                                         DSN: (315) 370-2001

Sponsor​ Email:

Mailing Address:
NCTS Far East Det. Diego Garcia
PSC 466 Box 8
FPO AP 96595-0008

We provide quality assurance evaluation and management of naval telecommunication facilities, communications, security and Defense Information System Agency (DISA) assets. Additionally, we provide command, control, computer, communications, collaboration, and intelligence (C5I), both tactical and strategic, support to the fleet, national consumers, allied forces in the Indian Ocean theater and all commands and activities on Diego Garcia.

On 23 January 1971, a nine man advance party from NMCB-40 landed on Diego Garcia to initiate a preliminary survey for beach landing areas. Fifty additional Seabees from Amphibious Construction Battalion Two landed on the island and marked underwater obstructions, installed temporary navigational aids and cleared beach areas for landing additional personnel and materials. On 20 March 1971, an additional party of 160 Seabees from NMCB-40 arrived. Construction for U.S. Naval Communication Facility Diego Garcia was started four days later by the Seabees from NMCB-1 and finished by NMCB-62. The Seabees also started construction of an interim runway - to support the Communication Facility!

In October and November of 1971, Detachment CHAGOS of NMCB 71 and the whole of NMCB 1 arrived, marking the beginning of large-scale construction. NMCB 1 built the transmitter and receiver buildings and placed the base course for the permanent runway and parking apron. In July 1972, NMCB 62 relieved NMCB-1 and took over the departing battalion's projects. On 25 December the first C-141J transport landed on the newly completed 6,000 foot runway with the Bob Hope Christmas Troupe!

During December 1972, a Pre-commissioning Detachment arrived to prepare the Naval Communication Station for operations. On 20 March, 1973 U.S. Naval Communication Station, Diego Garcia was commissioned. The setting was sparse, but communications have been "UP" ever since!

Work commenced on the second construction increment, a $6.1 million project which involved the construction of a ship channel and turning basin in the lagoon. This project, however, was contracted to a Taiwanese firm. Seabees continued to work on support and personnel facilities in the cantonment area at the northern tip of the atoll. The second major area of construction was the airfield and its supporting facilities. Revised requirements called for the extension of the original 8,000-foot runway to 12,000 feet and additions were made to the parking apron and taxiways. New hangars and other support facilities were also built. During 1973 and 1974, Seabee units worked on all these projects. Because the final mission of Diego Garcia was still evolving, it was clear that still more construction would take place in the years to come.

In 1975 and 1976, Congress authorized $28.6 million to expand the Diego Garcia facilities to provide minimal logistics support for U.S. task groups operating in the Indian Ocean. Additional projects were undertaken in 1978. World events in 1979 and 1980, however, forced a reevaluation of the U.S. defense posture in the Indian Ocean area which indicated the need for pre-positioned materials to support a rapid deployment force and a more active U.S. presence in the area. It was decided to further expand the facilities at Diego Garcia in order to provide support for several pre-positioned ships, loaded with critical supplies. By the end of 1980 the Naval Facilities Engineering Command had advertised a $100 million contract for initial dredging at Diego Garcia to expand the berthing facilities.

Thus, what began as simply a communication station on a remote atoll became a major fleet and U.S. armed forces support base by the 1980s. By 1983 the only Seabee unit remaining on Diego Garcia was a detachment of NMCB 62. The work the Seabees completed on Diego Garcia since 1971 represented the largest peacetime construction effort in their history. Diego Garcia was the major Seabee construction effort of the 1970s and they acquitted themselves well under the difficult and isolated conditions that exist here. When the Seabees arrived they lived in tent camps, when they departed they left a fully-developed, modern military facility, capable of supporting thousands of U.S. personnel.

Welcome Aboard! Congratulations on your orders to Naval Computer and Telecommunications Station (NCSTS) Far East Detachment Misawa, Japan! Misawa is located in Aomori prefecture in the Tohoku Region of the northern part of Honshu. We hope that your trip goes smoothly and look forward to working with you during your time here!


Sponsorship Coordinator:
COMM: (011-81)-176-77-4523
DSN: (315) 226-4523

Mailing Address:
Naval Computer and Telecommunications Station
Far East Detachment Misawa, Japan
PSC 76 BOX 5056
APO, AP 96319-5056

NAVCOMTELSTA Far East Detachment Misawa provides reliable command, control, computer, communications and intelligence (C4I) services and support for real-world operations and exercises to commander, U.S. 7th Fleet (C7F), Commander, Patrol and Reconnaissance Wing (CPRW) 1, U.S. Naval Air Facility Misawa (NAFM), and other Department of Defense and U.S. government agencies. Detachment Misawa's support is primarily provided by means of a local network support center and Electronic Key Management System account.  |  Navy.MIL  |  |  Navy FOIA  |  DoD Accessibility/Section 508  |  No Fear Act  |  Open Government  |  Plain Writing Act  | 
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