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You can locate your AT&T account number online or by viewing your paper bill.
Follow the prompts to get your Number Transfer PIN sent to you via text. You’ll need your account passcode to generate the Number Transfer Pin when calling *PORT. With the myATT app. Sign into the myAT&T app. Go to your profile and select People & Permissions. Scroll to Transfer phone number and select Request a new PIN.
You can do this by logging in using your www.att.com login information, then go to Total balance in the first box and select see my bills from here scroll down to Usage > Data, text & talk logs > select the billing period and phone number you’d like to view details on.
Wireless Account What's the phone number for... Pre-order the New Samsung Galaxy Z Flip4 & Galaxy Z Fold4 and, for a limited time, get twice the storage and a free case !
To activate or check the balance of your AT&T Visa® Reward Card or AT&T Virtual Visa® Account, enter the first four digits of your Reward Card number and select Manage your rewards. Reward Card number