OSA CONUS locations include: Peterson AFB (C-21), Andrews AFB (C-21), Scott AFB (C-21, C-40), and MacDill AFB (C-37)
OSA OCONUS locations include: Hickam AFB (C-37, C-40), Yokota AB (C-12), Elmendorf AFB (C-12), and Ramstein AB (C-21, C-20, C-37, C-40)
(from mypers)