Our Gazelle Certified AT&T phones are locked to the AT&T network, meaning they can only be activated using an AT&T SIM card. If you intend to use an AT&T locked device on a carrier other than AT&T, such as Cricket or Straight Talk, we strongly recommend you first contact that carrier about the use of the specific AT&T locked device you want to purchase with their service.

Gazelle devices do not include SIM cards. If you already have a compatible AT&T network SIM, you can insert it into your new device for immediate activation. Otherwise, you will have to source one from your carrier. If you are uncertain what size SIM is compatible with a given device, check the "Specifications" section of the product listing for more information.