NCTS Guam is under the United States Tenth Fleet's Naval Computer and Telecommunications Area Master Station Pacific (NCTAMS PAC) and under the installation management authority of Joint Region Marianas.

NCTS Guam provides communications support in the areas of responsibility for the U.S. Third, Fifth, and Seventh Fleets.

[3] The facility dates back to 1944, immediately after the 1944 Battle of Guam.

[4] NCTS Guam previously managed the Navy housing located at the separated but nearby South Finegayan military property.

[5] In 2020, Marine Corps Base Camp Blaz, located adjacent to NCTS Guam, was activated amid its construction.