Block and Unblock numbers
BLOCK:Â
1. From the Phone app, select the
Menu iconÂ

 then select
Settings >Â
Call screening >Â
Manage black list.Â
2. Select ADD A NUMBER. Enter the desired number then select BLOCK.Â
Note: Alternately, from the recent calls tab, select the desired call > Block number > BLOCK. 
UNBLOCK:Â From the Blocked numbers screen, select the X icon next to the desired number then select UNBLOCK.
Call Protect
• To automatically block calls from likely fraudsters, get alerts on suspected spam, and manually block calls learn more about
AT&T Call Protect. Free for eligible users.