In this tutorial, you will learn how to:
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• Access blocked numbers
• Block and unblock numbers
• Block a phone number from the call log
• AT&T ActiveArmor Mobile Security
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From the Phone app, select the  Menu icon then select Settings. Select Blocked numbers.Â
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BLOCK NUMBERS: From the Blocked numbers screen, select Add a number. Enter the desired number, then select Block.Â
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UNBLOCK PHONE NUMBER: Select the X icon next to the desired number. Select Unblock to confirm.Â
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From the Phone app, select the Recents tab then select and hold the desired phone number. Select Block number, then select BLOCK to confirm.
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To automatically block calls from likely fraudsters, get alerts on suspected spam, and manually block calls learn more about AT&T ActiveArmor Mobile Security. Free for eligible users.