Most landline carriers support star codes (also called Vertical Service Codes). These allow you to block the last incoming call or manage a block list directly from your phone keypad.
AT&T 1:09 Show all How it Works: These small boxes connect between your wall jack and your phone. Pre-programmed Lists: High-end models like the CPR Call Blocker come pre-loaded with up to 100,000 known scam numbers. Manual Control: Most include a "Block Now" button that instantly adds the current caller to a blacklist. Whitelist Mode: Some devices allow you to set an "approved list" so only family and friends can ring through. Consumer Advice | Federal Trade Commission (.gov) +5 3. Managing Block Lists Online For VoIP or digital landline services (such as Xfinity or Spectrum), you can often manage these features more easily through a web browser: Log in to your service provider's
To review or remove numbers from your block list, dial *60 again and listen for options like “review list” or “delete a number.”
Most landline carriers support star codes (also called Vertical Service Codes). These allow you to block the last incoming call or manage a block list directly from your phone keypad.
AT&T 1:09 Show all How it Works: These small boxes connect between your wall jack and your phone. Pre-programmed Lists: High-end models like the CPR Call Blocker come pre-loaded with up to 100,000 known scam numbers. Manual Control: Most include a "Block Now" button that instantly adds the current caller to a blacklist. Whitelist Mode: Some devices allow you to set an "approved list" so only family and friends can ring through. Consumer Advice | Federal Trade Commission (.gov) +5 3. Managing Block Lists Online For VoIP or digital landline services (such as Xfinity or Spectrum), you can often manage these features more easily through a web browser: Log in to your service provider's
To review or remove numbers from your block list, dial *60 again and listen for options like “review list” or “delete a number.”