Starfleet Command, also known as Spacefleet Command or Starfleet Central, was the operating authority of Starfleet. The primary management center was located at Starfleet Headquarters in San Francisco. The organization was overseen by the Federation Council and operated by the Commanding Officer, Starfleet Command, assisted by the Chief of Staff for the Federation Starfleet.
Starfleet Command was the operating authority of the United Earth Starfleet before the United Federation of Planets was founded in 2161. As Starfleet was absorbed into the new Federation as its exploratory and military arm, so was Starfleet Command.