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Date: 2014-04-02 13:22:53North American Numbering Plan Computing Telcordia LERG Routing Guide Number pooling Telephone numbering plan Interexchange carrier SQL Telephone exchange Null Telephone numbers Numbers Data management | Quentin Sager Consulting, Inc. [NALENND™ NPA NXX TO ZIP CODE - FIPS EDITION] NPA NXX to ZIP Code Cross-reference Database reference manualAdd to Reading ListSource URL: www.quentinsagerconsulting.comDownload Document from Source WebsiteFile Size: 398,36 KBShare Document on Facebook |