Hey there @bella.hutson!
Awesome question! I will be happy to help you find the account passcode!
While the security passcode is not listed on the account (for security reasons), you can totally reset it! This can be done right from your myAT&T account!
Check out our support article for resetting security passcodes for specific instructions.
You can also click here to view all of the information about the security passcode, the requirements, and when you will use this information!
I hope this helps! Let us know if you have any other questions and have a great one!
Fiona, AT&T Community Specialist