Activate your New Phone – Steps from AT&T
https://forums.att.com/conversations/wireless-account/activate-your-new-phone-steps-from-att/5df02d99bad5f2f606057a39
WebAug 28, 2019 · Activating your device. Heads Up: If you are trading in your device, you can normally move your SIM to your new device. (the SIM card must be the same size). New to AT&T? Make sure to sign into your account. Go to the Create a User ID site. Follow the prompts. Once you create a User ID, don’t forget to sign up for autopay. Device Extras.
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