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Every service provider that obtains North American Numbering Plan US geographic telephone numbers from the North American Numbering Plan Administrator (NANPA), including those providers that receive their numbering resources indirectly, are required to report permanently disconnected numbers. The Toll-Free Numbering Administrator is required to report permanently disconnected for toll-free numbers. All large and medium sized voice providers began reporting their permanently disconnected numbers on April 15, 2021; remaining small voice providers began reporting disconnects starting October 15, 2021.