To block a number on AT&T landline, you have two official methods: use a star code from your handset or manage your block list through the AT&T phone portal. AT&T documents star codes for landlines and an online Call Blocking list for eligible AT&T Phone and AT&T Phone - Advanced accounts.
How to block a number on AT&T landline: A brief introduction
AT&T provides two official ways to stop unwanted calls on your home phone: pressing star codes directly from your handset, or using the online Call Blocking portal. The star code method works on standard AT&T landlines, while the online portal is available for AT&T Phone and AT&T Phone - Advanced accounts. Both methods let you block up to 100 numbers.
Method 1: Use star code *60 to block a number from your handset
Using *60 is the primary way to block a specific number on a standard AT&T landline. Follow these steps:
- Pick up your handset and wait for a dial tone.
- Press *60. If prompted, press 3 to turn on call blocking.
- To add a number: press #, dial the 10-digit phone number, then press # to confirm.
Another AT&T page says for Call blocking: *60, to block a number, press #, dial the 10-digit number, and press # to confirm; to unblock, press , dial the 10-digit number, and press to confirm.
To turn off call blocking entirely, dial *80 and, if prompted, press 3. This deactivates the feature but does not delete your saved block list.
Method 2: Use *61 to block the most recent caller (AT&T Phone - Advanced)
If you have AT&T Phone or AT&T Phone - Advanced, you can block the last unwanted caller immediately after hanging up. For AT&T Phone / AT&T Phone - Advanced, AT&T says you can set up a list online or press *61 after your most recent unwanted call to turn on call blocking and add that number to your block list. This method is faster than manually entering a number and works only for the most recent incoming call.
Method 3: Manage a block list of up to 100 numbers online
The online list can hold up to 100 numbers.
- Go to the AT&T phone portal and sign in with your member ID.
- Select Features, then Call Filtering.
- Select Call Blocking and slide the toggle to On.
- Choose Manage Call Blocking.
- Enter a 10-digit number and select Add, then Save.
- To remove a number, select X next to the number and then Save.
Turning off online call blocking does not delete the saved block list. The numbers remain stored for when you reactivate the feature. AT&T also says turning off online call blocking does not delete the blocked-number list.
How to turn off call blocking on your AT&T landline
To deactivate call blocking on a standard landline, dial *80 and, if prompted, press 3. Turning off the feature does not delete your blocked-number list, so you can reactivate it later without re-entering numbers.
Frequently Asked Questions
Is there a limit to how many numbers I can block?
Yes. For AT&T Phone and AT&T Phone - Advanced, the online block list can hold up to 100 numbers. Standard landline *60 blocking also has a capacity limit, but the exact number varies by account type.
Can blocked callers leave a voicemail?
Blocked callers are typically routed to a message stating you are not accepting calls, and they cannot leave a voicemail. However, some caller ID and voicemail settings may still allow a message to be recorded; check your AT&T account settings for specific behavior.
What is the difference between *60 and *61?
*60 is the general call blocking code for standard AT&T landlines, allowing you to manually add or remove numbers. *61 is available only for AT&T Phone and AT&T Phone - Advanced and automatically blocks the most recent unwanted caller after you hang up. Both methods add numbers to the same block list.
How do I unblock a number I previously blocked?
On a standard landline using 60, press , dial the 10-digit number, then press * to confirm. On the online portal, go to Manage Call Blocking, select the X next to the number, and save the change.
Does blocking a number on my landline also block calls on my AT&T wireless line?
No. Landline call blocking is separate from wireless call blocking. Blocking a number on your AT&T landline only affects calls to that home phone number. You must set up blocking separately on your AT&T wireless account if needed.
For the wider topic, see blocking calls and numbers.
