Comcast How — To Block A Number From Calling You ^new^

Dial *77 to activate or *87 to deactivate the blocking of anonymous calls.

Works on most Xfinity Voice lines:

Sign in to your Xfinity Voice Settings using your Xfinity ID. Navigate to or Privacy . comcast how to block a number from calling you

You can also enable here to block all calls with hidden caller IDs. Using Phone Codes: Dial *77 to activate or *87 to deactivate

If you want to block the last person who called you, you can do so immediately from your phone. comcast how to block a number from calling you

Xfinity Voice offers several ways to screen or reject unwanted calls: