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Log into your account, and choose a location if applicable.
Click Fax in the navigation menu.
Navigate to Available DIDs section
Click the red minus sign for the trunk you wish to delete.
in our example above, we click on the minus sign beside Main Office
A window will pop up asking you to confirm deletion of the trunk you want to delete. Click on Accept to continue
Repeat the process for any additional trunks you wish to remove.