Stay connected with AT&T in Ontario. We offer phones, tablets, smartwatches, and connected devices from all of your favorite brands. We also offer wireless data plans in Ontario for every need. Enjoy the flexibility of an Ontario prepaid phone plan—with no annual contract and no credit check. Get unlimited text and data with AT&T UNLIMITED ELITE, which includes HBO Max™. Get nationwide AT&T 5G service, which comes with all of our unlimited data plans for no extra cost.
With all of the time many of us spend online, we expect a lot from our Ontario internet service. That's why you need fast, reliable internet from AT&T. With AT&T Internet in Ontario, you'll enjoy 99% reliability and strong Wi-Fi connectivity throughout your entire home.