You can activate your AT&T SIM in-store, online, or by contacting customer service. The process is similar for postpaid and AT&T prepaid customers.

Compatible with most AT&T Prepaid mobile phones Redeemable for talk time, text messaging, games and other AT&T Prepaid services $65 value ...

AT&T Prepaid is giving away free and discounted phones for tax season. Visit any store before April 17 to grab these deals.