A DNC list is a collection of phone numbers that the system tracks and ensures these numbers won't be redialed... ever. Note that the system only filters leads against the DNC list in the system and not the National or Federal DNC list. 

Here we will discuss how to remove DNC numbers in bulk. This is helpful if you need to delete multiple phone numbers from your DNC list or if you accidentally uploaded the wrong file to the DNC list.

From the Dashboard, click on Call Center and select DNC from the drop down.

In the Manage DNC Section, click on Remove from DNC button.

Another window will appear. Click on Choose File and select the DNC List.
The list should only contain the Phone Numbers and the format should be Comma Delimited CSV file.

Select if you want to delete the numbers from the Entire DNC List or from Campaign DNC list

Click on Remove

A confirmation window will appear with the details of the DNC Delete status.