AT&T Store - Cos Cob 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 PMClosed Today 409 East Putnam Avenue Space 1057a Cos Cob, CT 06807 USphone(203) 622-6749(203) 622-6749Get DirectionsVisit Store Website