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: 622

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-622 A Sigourney IA SGRNIAXPRS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-622 1 Sigourney IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-622 2 Sigourney IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-622 3 Sigourney IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-622 4 Sigourney IA   221F ONVOY, LLC - IA 632   2020-11-20   
641-622 6 Sigourney IA   916A MAHASKA COMMUNICATION GROUP, LLC - IA 632   2019-12-08   
641-622 9 Sigourney IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      

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

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