In your camera package, you may find one of the two following types of SIM cards for AT&T GoCam. Current models ship with the Spartan Camera SIM, which is a solid white SIM with a small blue AT&T globe logo.
Spartan Camera AT&T SIM
This SIM can be activated on Spartan Camera's data service with free premium service! For more info please click here: Spartan Camera Data: AT&T
Note: If you use this SIM card to buy data from AT&T, it may seem like it is working because these SIMs come with a little bit of data for testing purposes. After that is used, your SIM card will no longer be able to connect to the network. You must get AT&T to cancel the data plan before you purchase a plan from Spartan Camera. If you purchase a Spartan Camera data plan while the SIM is still associated with an AT&T account, the camera will not work.
If you need to cancel an AT&T Buy-A-Session plan that you purchased for a Spartan Camera SIM, have the phone number for the camera handy. Call 1-800-331-0500 and ask for tech support. Then ask to talk to someone about "session-based" service. You may have to ask about iPad service because sometimes the cameras are listed as iPads.
Any other AT&T SIM
If you have any other SIM card that has a 4G logo or looks like the one shown above (with a colored front), this SIM card cannot be activated through Spartan Camera. It can only be used for data plans purchased from AT&T.