Area Code 820

Area Code & Prefix Location
820-200 Thousaoaks, California
820-201 Oxnard, California
820-222 Camarillo, California
820-300 Guadalupe, California
820-333 Thousaoaks, California
820-400 Parkfield, California
820-444 Newburyprk, California
820-666 Snlusobspo, California
820-777 Santapaula, California
820-888 Simivalley, California
820-999 Oxnard, California