If device blocking methods are proving not sufficient, AT&T Smart Limits may be for you. With Smart Limits, you can block numbers on a service level, along with other useful features such as purchase limits, managing data and whitelisted callers. You can try Smart Limits for free for 30 days. After the free trial, the service is billed at $4.99 per month for one line.
Your current wireless plan, devices, and additional features will be displayed. To manage your additional features, select the Manage link for the device you want to manage. Current features for the selected device will be listed under Manage My Current Features.
To add Smart Limits, under the Get More Features section, select Parental Controls to view options and more details. Then, select the Smart Limits feature you'd like to add.
Click the Select & Review button, and then review your changes. To change the effective date for your feature change, select the Edit Then, select a date from the available options, and then click the Select button.
Read the Terms & Conditions, and to accept, select Submit.
Once Smart Limits is added to your account, you'll receive a confirmation page. Select Proceed to Configure Account to begin configuring Smart Limits and adding lines to manage.
After you've configured Smart Limits, get the Smart Limits app:
From an iPhone, download and install the AT&T Smart Limits app from the App Store.
From an Android device, download and install the AT&T Smart Limits app from the Google Play store.
Open the Smart Limits app and log in using your AT&T User ID that you use to manage your AT&T wireless account online.
I hope this helps!
AT&T Customer Care
Need help with an account specific question? Post a new question here on the forums by clicking the "Ask a Question" button. For additional support, please visit us at our AT&T services hub. Follow us on: Twitter @ATTCares and @DIRECTVService
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
no one wants to pay $6 monthly to block 1 or 2 numbers. Parents should be able to control that remotely. Even Sprint stopped blocking numbers over the phone but made it a SELF SERVICE option FOR FREE online. AT&T needs to stop being so money hungry. $5.99 monthly to block a few numbers is ridiculous. If I knew that were the case I would've never changed my service.