February 16, 1973, National SIGINT Operations Center was Established

On 16 February 1973, a ribbon-cutting ceremony was held for the National SIGINT Operations Center (NSOC).
The National Security Operations Center (NSOC) is the part of the United States National Security Agency responsible for current operations and time-sensitive signals intelligence (SIGINT) reporting for the United States SIGINT System (USSS).
NSOC is an operations center on a 24 hours a day, 7 days a week basis, providing total situational awareness across the NSA/CSS enterprise for both foreign Signals Intelligence and Cyber Security, maintains cognizance of national security information needs, and monitors unfolding world events.