Block or Unblock Calls
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Block or Unblock Calls
Block or unblock calls from your device. Block unknown calls.
When a call is blocked, it is routed directly to voicemail. The call blocking feature may not affect phone calls via third-party apps installed on your device. Contact third-party app developers for assistance with such applications.
In this tutorial, you will learn how to:
• Access blocked numbers
• Block and unblock numbers
• Block a phone number from the call log
• Block unknown callers
• Use AT&T ActiveArmor Mobile Security
• Block and unblock numbers
• Block a phone number from the call log
• Block unknown callers
• Use AT&T ActiveArmor Mobile Security
Access blocked numbers
From the 
Phone app, select the 
Menu icon > Settings > Blocked numbers.
Phone app, select the Menu icon > Settings > Blocked numbers.
Block and unblock numbers
BLOCK NUMBERS: From the Blocked numbers screen, select Add a number. Enter the desired number, then select Block.
UNBLOCK PHONE NUMBER: Select the X icon next to the desired number. Select Unblock to confirm.
Block a phone number from the call log
From the Phone app, select the Recents tab, then select and hold the desired phone number. Select Block/report spam. If desired, select the Report call as spam checkbox, then select Block to confirm.
Phone app, select the Recents tab, then select and hold the desired phone number. Select Block/report spam. If desired, select the Report call as spam checkbox, then select Block to confirm.
Block unknown callers
From the Blocked numbers screen, select the Unknown switch.
Use AT&T ActiveArmor Mobile Security
To automatically block calls from likely fraudsters, get alerts on suspected spam, and manually block calls learn more about Use AT&T ActiveArmor Mobile Security. Free for eligible users.