ampa: (29 Sacramento: (S) San Francisco: (F, switch 1) (G, switch 2) The I" number represents the sector (2, 3 or 4) 2 or 3 in address list) 2 = Nonk 3 = Southeast,• 4 = Southwest (generally) The last 3 numbers represent the number assigned the site Note: All attempted calls are recorded. Some call