The 25th Space Range Squadron is a squadron of the United States Space Force. It is assigned to the Space Delta 11 at Schriever Space Force Base, Colorado. The 25th operates the Space Test and Training Range along with the 379th Space Range Squadron of the United States Air Force Reserve. On March 31, 2020, it was announced that the 25th Space Range Squadron would be moved to the newly formed United States Space Force. This transfer made the 25th the oldest unit in the USSF.