The 21st Wing is an inactive wing of the United States Air Force.
The 168th Wing is a unit of the Alaska Air National Guard, stationed at Eielson Air Force Base, Fairbanks, Alaska. Before it was redesignated in February 2016, it was known as the 168th Air Refueling Wing. If activated to federal service as a USAF unit, the 168 WG is primarily gained by Pacific Air Forces, while its 213th Space Warning Squadron is gained by Air Force Space Command.
The 20th Space Surveillance Squadron is a Space Delta 2 unit located at Eglin Air Force Base, Florida with the mission to execute multiplatform, tactical space warfighting domain characterization, recognition, and responsiveness to achieve 21st Space Wing and United States Space Command intent. The unit, formerly designated the 20th Space Control Squadron, was renamed on 25 March 2022.
The 13th Space Warning Squadron (13SWS) is a missile warning unit assigned to the United States Space Force and located at Clear Space Force Station 5 miles (8 km) south of Anderson, Alaska
The 16th Electromagnetic Warfare Squadron is an active United States Space Force unit, stationed at Peterson Space Force Base, Colorado as part of the Space Delta 3. The squadron protects critical satellite communication links to detect, characterize, geolocate and report sources of electromagnetic interference on US military and commercial satellites. The squadron also provides combat-ready crews to deploy and employ defensive space electromagnetic warfare capabilities for theater combatant commanders. The squadron is Air Force Space Command's first defensive counterspace unit.
The United States Air Force's 114th Electromagnetic Warfare Squadron (EWS) is a Florida Air National Guard unit located at Cape Canaveral Space Force Station, Florida. It is operationally gained by the United States Space Force.
Cape Cod Space Force Station is a United States Space Force station located in the northwest corner of Joint Base Cape Cod, United States, on Flatrock Hill in Bourne, Massachusetts. Cape Cod Space Force Station began construction in 1976 as Cape Cod Missile Early Warning Station and was renamed Cape Cod Air Force Station in 1982, before assuming its current name in 2021.
The 3rd Test and Evaluation Squadron is a space test and evaluation unit located at Schriever Space Force Base in Colorado.
The 2nd Space Warning Squadron is part of the Space Delta 4 at Buckley Space Force Base, Colorado. It operates the Space-Based Infrared System satellites conducting global monitoring for significant infrared events.
The 6th Space Warning Squadron is located at Cape Cod Space Force Station, in Sagamore, Massachusetts, United States. It operates the PAVE PAWS radar to watch for missiles launched toward North America. The squadron is assigned to Space Delta 4. The squadron was first organized in October 1979 as the 6th Missile Warning Squadron
The 11th Space Warning Squadron is a United States Space Force missile warning squadron, located at Buckley Space Force Base, Colorado.
The United States Air Force's 3d Command and Control Squadron was a command and control unit located at Offutt AFB, Nebraska.
The United States Space Force's 5th Electromagnetic Warfare Squadron is a space electromagnetic warfare unit located at Peterson Space Force Base, Colorado.
The 7th Space Warning Squadron (SWS) is the premier Space Domain Awareness sensor on the West Coast. The unit was originally established to guard the U.S. West Coast against sea-launched ballistic missiles from the eastern outskirts of Beale Air Force Base approximately 8 miles (13 km) east of Marysville, California. 7 SWS is a geographically separated unit of Space Delta 4.
The 12th Space Warning Squadron is a United States Space Force ground-based radar used for missile warning, missile defense, and space situation awareness, stationed at Pituffik Space Base, Greenland.
The United States Space Force's 5th Space Warning Squadron is a missile warning unit located at Buckley Space Force Base, Colorado.
The United States Air Force's 3d Space Communications Squadron was a space communications squadron located at Kapaun AS, Germany.
The United States Air Force's 9th Space Warning Squadron was a United States Air Force missile warning unit located at Robins AFB, Georgia.
The 17th Test and Evaluation Squadron is a United States Space Force test and evaluation unit, located at Schriever Space Force Base, Colorado. The squadron is tasked with testing and evaluating space systems and associated support equipment.
Space Base Delta 2 is a unit in the United States Space Force. It is assigned to Space Operations Command and headquartered at Buckley Space Force Base in Aurora, Colorado, United States.
United States Space Force 
ASOUA 
