Formally established in 1964, the NASA ground communications system (NASCOM) was officially combined into one central program. NASCOM was the central nervous system and connected all the communications circuits (voice, television, commands and data) of all three networks, Satellite Tracking and Data Acquisition Network (STADAN), Mercury Space Flight Network (MSFN) and Deep Space Network (DSN) which fed into NASA Goddard Space Flight Center (where it was managed). The networks would call NASCOM to get the appropriate communications for the mission and then return the communication infrastructure when the mission is done.
› Histories of the Space Tracking and Data Acquisition Network (STADAN), the Manned Space Flight Network (MSFN), and the NASA Communications Network (NASCOM) (PDF)› SCaN History of the 1960’s