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Date: 2011-08-19 11:51:16North American Numbering Plan Voice over IP Numbers 9-1-1 Electronic engineering Excise Telephony Tax Federal telephone excise tax Taxation in the United States Enhanced 9-1-1 Geolocation | E911 SN update[removed]inddAdd to Reading ListSource URL: dor.wa.govDownload Document from Source WebsiteFile Size: 88,65 KBShare Document on Facebook |