Unwanted calls can be a major disruption, ranging from annoying telemarketers to potentially dangerous scammers. If you are a Comcast customer, you have several powerful tools at your disposal to block these numbers on both your (landline) and Xfinity Mobile services. 1. Blocking Numbers on Xfinity Voice (Landline)
This is the most robust method, allowing for a visual list of blocked numbers and notes. how to block a number on your comcast phone