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.

If you've resolved to save money this year, finding the best prepaid phone plan can help you ... And even though they're big name carriers, Verizon and AT&T have options that I can recommend ...