How to Block an Incoming Phone Number on an AT&T Landline

AT&T's call blocking service allows users to block up to six incoming phone numbers from ringing on a landline. When a phone number is blocked and someone from that number calls your AT&T landline, he receives a message that you are not accepting the call. You may block an incoming phone number on an AT&T landline by following a few specific steps.

Things You'll Need

  • AT&T landline
  • Phone number that you wish to block


    • 1

      Pick up the receiver on your AT&T landline phone and listen for a dial tone. Press *60 and press #. Wait for another dial tone.

    • 2

      Dial the first number, including the area code, that you wish to block on your AT&T landline. Press #.

    • 3

      Listen for another dial tone, dial the second number that you wish to block then press #. Repeat this step to block up to six numbers.

    • 4

      Hang up your phone. The phone numbers you entered are blocked.

Tips & Warnings

  • The AT&T landline call blocking service does not allow users to block calls from wireless phones or pay phones.
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  • Photo Credit telephone image by Marek Kosmal from

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