AT&T Store - Old Mammoth Road 10:00 AM - 7:00 PM 10:00 AM - 7:00 PM 10:00 AM - 7:00 PM 10:00 AM - 7:00 PM 10:00 AM - 7:00 PM 10:00 AM - 7:00 PM 11:00 AM - 7:00 PM436 Old Mammoth Road Suite Suite A Mammoth Lakes, CA 93546 USphone(760) 924-3111(760) 924-3111Get DirectionsVisit Store Website