How To Block A Phone Number On My Comcast Phone May 2026

She clicked and then Save Changes at the bottom of the page.

But Sarah had a clever idea. This number was spoofing a local exchange. She remembered that Comcast allows wildcard blocking . Instead of just that one number, she typed ** and labeled it "Unknown Warranty Calls." This would block any number starting with 1-800-555. how to block a phone number on my comcast phone

Sarah had been a Comcast customer for years, using their digital voice service for her home office. Lately, a telemarketer selling "extended car warranties" had been calling her number, "Main St. Designs," three times a day. She’d told them to stop, but they didn’t. She needed a permanent solution. She clicked and then Save Changes at the bottom of the page

She clicked it. A simple page opened with two blank fields: Phone Number to Block and a Label (so she could remember who it was). She carefully typed the telemarketer’s number, 1-800-555-1234, and in the label box wrote, "Annoying Warranty Guy." She remembered that Comcast allows wildcard blocking

To test it, she grabbed her office phone and dialed the blocked number from her cell phone. Instead of ringing through, she heard a single busy signal and then a recorded message: "The person you have called is not accepting calls at this time." Perfect.

That took her to the Voice Dashboard —the command center for her home phone. She scanned the tabs and clicked , then looked for a sub-menu called Call Features . Bingo. Inside that list, she saw the option: Selective Call Blocking .

She grabbed her laptop and logged into her Comcast account at . After entering her password, she clicked on the Voice icon (it looks like a telephone receiver) at the top of the page.