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: 715

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-715 A Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-715 0 Charles City IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632   2006-04-07   
641-715 1 Charles City IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-715 2 Charles City IA   221F ONVOY, LLC - IA 632   2012-12-14   
641-715 3 Charles City IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632   2006-12-16   
641-715 4 Charles City IA   6266 UNITED STATES CELLULAR - IA 632   2007-03-30   
641-715 5 Charles City IA   221F ONVOY, LLC - IA 632   2012-12-14   
641-715 6 Charles City IA   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-16   
641-715 7 Charles City IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-06-26   
641-715 8 Charles City IA   3620 OMNITEL COMMUNICATIONS, INC. - IA 632   2017-04-13   
641-715 9 Charles City IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2010-04-02   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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