AT&T ActiveArmor Mobile Security
Use AT&T ActiveArmor to automatically block fraudulent calls, warn about phone spam, and temporarily block unwanted calls.
In this tutorial, you will learn how to:
• Access call protect
• Block a number
• Access settings
Access call protect
1. Navigate to and select the 
AT&T ActiveArmor Mobile Security app.
Note: Depending on your device, you may need to download the app from the Google Play Store. View the Download Apps & Games tutorial to learn how to download an app onto your device.
2. Select Continue.
3. If this is the first time you are accessing AT&T ActiveArmor, you will be prompted to verify your number. Enter in your phone number, then select Continue. You will receive a text message containing a PIN. Enter the PIN, then select Verify.
4. Select Calls.
Block a number
From the Calls page, scroll to and select Block caller. Select the desired option and follow the prompts.
Access settings
Select the 
Menu icon, then select Settings. Edit settings as desired.
