List of United States Air Force aircraft control and warning squadrons

Site codes

Sites within the United States

• DC-xx Semi-Automatic Ground Environment Direction Center/Combat Center.
• F-xx Alaskan air defense sites.
• H-0x Hawaiian air defense sites.
• L-xx Original Air Defense Command 1946 "Lashup" Radar Network of temporary sites to provide detection at designated important locations using radar sets left over from World War II.
• LP-xx "Lashup" site which was incorporated into the first ADC permanent radar network in 1949.
• P-xx Original 75 permanent stations established in 1949.
• RP-xx Sites that replaced a permanent 1949 station.
• M-xx 1952 Phase I Mobile Radar station.
• SM-xx 1955 Phase II Mobile Radar Station.
• TM-xx 1959 Phase III Mobile station.
• TT-x Texas Towers, radar tower rigs off the East Coast of the United States, named because of their resemblance to oil drilling rigs in the Gulf of Mexico.
• Z-xx NORAD designation for sites after 31 July 1963. P, M, SM, and TM stations active after that date retained their numbers, but were designated "Z-xx".

  Sites outside the United States

• C-xx ADC and Royal Canadian Air Force manned sites on the Canadian Pinetree Line.
• G-xx Sites in Greenland established by Northeast Air Command reassigned to ADC in 1957. became N Sites, then C Sites, retaining their numbers.
• H-xx Air defense sites in Iceland.
• J-xx Sites in Japan.
• K-xx Sites in Korea.
• N-xx Pinetree Line sites in Newfoundland. Became C Sites, retaining their numbers. Reassigned from NEAC to ADC in 1957.
• R-xx At least two sites in the Southern Pacific.
• W-xx sites in Spain.
• Y-xx sites in Morocco.

  Aircraft control and warning squadrons