9th Communication Battalion was activated 1 June 1966 at the Marine Corps Air Ground Combat Center Twentynine Palms, California.

On 15 February 1979, Force Troops was deactivated and the battalion was assigned to Marine Corps Air Ground Combat Center (MCAGCC), 29 Palms.

9th Comm has also participated in multiple deployments in support of Operation Enduring Freedom OEF.

Their cumulative deployments saw the installation, operation, and maintenance of the largest enterprise network ever established by a Marine Corps unit aboard Camp Leatherneck.

[1] During this time, Camp Leatherneck and surrounding areas saw significant upgrades in telecommunications infrastructure as well as an increase in the availability of commercialized network services to support all base personnel.