AT&T Store - Sylmar 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 - 7:00 PM 11:00 AM - 5:00 PM13679 Foothill Blvd Unit B Sylmar, CA 91342 USphone(818) 888-9560(818) 888-9560Get DirectionsVisit Store Website