In Control Center, you can change termination numbers, NPANXX lines, states, or LATAs for existing geographic plans (sometimes referred to as geo routing). You can also delete individual rules within the feature or you can delete the entire feature itself.
To update an existing geographic routing plan:
Control Center displays a list of all services assigned to the accounts under your enterprise ID. If you have more than ten services, you can view the rest of your services by clicking one of the green linked Show numbers at the top of the list or you can click the green down arrow at the bottom of the list to add ten services at a time to the view.
To make changes: