To add or remove numbers from the Do not call list, navigate to the DNC page on the main navigation bar.
On the left-hand side of the screen, you will see numbers that are already on the DNC list, and on the right-hand side, you will have the ability to add new numbers to the list either one at a time or by uploading a CSV file with one column of numbers.
To remove the phone number from the DNC list use the search bar at the top of the screen to locate the number and hover over it on the list. A delete button will appear to remove the phone number.
Note that numbers on the DNC list only apply to restricting calls on those numbers, restrictions for texts are applied through the opt-out process specifically.