Thank you for reaching out. We are happy to assist you with getting the PUK for your SIM.
You can use our Troubleshoot & Resolve Tool to help locate this number; you’ll want to sign in for a more personalized experience. All you need to do is select the type of phone you have and the issue you have (i.e. Device Unlock). The next screen will ask you to choose out of three different unlock issues, you will want to choose Phone or tablet is requesting a PIN or PUK code. You will then be walked through getting this information.
If you have any further questions or concerns, please send us a private message to @ATTCares. In it, include your full name, phone number, and the type of device you have.
Have a wonderful day!
Angelina, AT&T Community Specialist
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