Date: 2010-04-09 15:40:11Numbering Resource Utilization/Forecast Report Telcordia LERG Routing Guide Telephone numbering plan Area codes 310 and 424 N11 code Communication Writing North American Numbering Plan expansion Area code 721 Telephone numbers North American Numbering Plan Identification | | First Quarter[removed]Provided by the North American Numbering Plan Administration Coming Soon: NANPA Website TrainingAdd to Reading ListSource URL: nanpa.comDownload Document from Source Website File Size: 221,22 KBShare Document on Facebook
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