AT&T Store

Stay connected with AT&T in O Fallon. We offer phones, tablets, smartwatches, and connected devices from all of your favorite brands. We also offer wireless data plans in O Fallon for every need. Enjoy the flexibility of an O Fallon prepaid phone plan—with no annual contract and no credit check. Get unlimited text and data with AT&T UNLIMITED ELITE. Get nationwide AT&T 5G service, which comes with all of our unlimited data plans for no extra cost.