Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-307 A Guthrie Center IA GTCTIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-307 0 Guthrie Center IA DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 632   2018-02-09   
641-307 3 Guthrie Center IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-307 6 Guthrie Center IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2020-11-19   
641-307 7 Guthrie Center IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-307 9 Guthrie Center IA GTCTIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632   2016-10-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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