If you don’t have online access, you can also dial *60 from your Comcast phone and follow voice prompts to block a specific number, but the web method gives you more control.
Lift the receiver and dial *60 . Follow the voice prompts to add numbers (including the area code) to your list. how to block a phone number on my comcast phone
She clicked and then Save Changes at the bottom of the page. If you don’t have online access, you can