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: 461

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-461 A Charles City IA RUDDIA012MD  321J HD CARRIER LLC 632      
641-461 0 Charles City IA   073H TELNYX LLC 632   2020-05-25   
641-461 1 Charles City IA   221F ONVOY, LLC - IA 632   2020-11-19   
641-461 2 Charles City IA   221F ONVOY, LLC - IA 632   2020-11-19   
641-461 7 Charles City IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2024-09-21   
641-461 8 Charles City IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2020-06-23   
641-461 9 Charles City IA   321J HD CARRIER LLC 632   2019-10-20   

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

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