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Date: 2010-05-07 11:45:14Numbering Resource Utilization/Forecast Report Number pooling Telephone numbers North American Numbering Plan Telcordia LERG Routing Guide | Central Office Code Reclamation Management Central Office Code Reclamation ManagementAdd to Reading ListSource URL: nanpa.comDownload Document from Source WebsiteFile Size: 69,50 KBShare Document on Facebook |