Hello, falcon99. Thanks for reaching out to us on the forums. I apologize to hear you are having issues with trying to find the settings for your voice features. Please have a look at the following link as it should provide a way on how to see the number you have blocked: https://www.xfinity.com/support/articles/call-screening
If you still having issues trying to find the blocked number feel free to send me a PM with your first and last name so I may further assist you.
To send a private message, please click my name "ComcastMichael" then select "Send a Message" on the right side.
Hello, falcon99. I have not heard back from you. If you still need assistance, please feel free to start a new thread.