Now you can bring your own phone and phone number when you switch to the great AT&T network. It's easy with the AT&T Prepaid SIM Kit. The AT&T Prepaid SIM Kit has everything you need to activate your own device on the AT&T network. Includes a 3 in 1 SIM card for standard, micro and nano SIM devices. Insert correct size SIM card. activateprepaid. Follow prompts. It's that easy! Smartphones will receive a text message with link to activate. AT&T Prepaid also offers plans to fit every budget so you're sure to find the plan you want at price you'll love. All with no annual contract or credit check. AT&T Prepaid: Great network. Great plans. Great value.

Now you can bring your own phone and phone number when you switch to the great AT&T network. It's easy with the AT&T Prepaid SIM Kit. The AT&T Prepaid SIM Kit has everything you need to activate your own device on the AT&T network. Includes a 3 in 1 SIM card for standard, micro and nano SIM devices. Insert correct size SIM card. activateprepaid. Follow prompts. It's that easy! Smartphones will receive a text message with link to activate. AT&T Prepaid also offers plans to fit every budget so you're sure to find the plan you want at price you'll love. All with no annual contract or credit check. AT&T Prepaid: Great network. Great plans. Great value.