AT&T Store - Castro Valley 10:00 AM - 8:00 PM 10:00 AM - 8:00 PM 10:00 AM - 8:00 PM 10:00 AM - 8:00 PM 10:00 AM - 8:00 PM 10:00 AM - 8:00 PM 10:00 AM - 6:00 PM3949 E Castro Valley Blvd Castro Valley, CA 94552 USphone(510) 582-2200(510) 582-2200Get DirectionsVisit Store Website