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: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-637 A New Sharon IA NWSHIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-637 0 New Sharon IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-637 1 New Sharon IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-637 2 New Sharon IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-637 3 New Sharon IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-637 4 New Sharon IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-637 5 New Sharon IA   221F ONVOY, LLC - IA 632   2019-11-29   
641-637 6 New Sharon IA   916A MAHASKA COMMUNICATION GROUP, LLC - IA 632   2016-02-20   
641-637 7 New Sharon IA   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-25   
641-637 8 New Sharon IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-637 9 New Sharon IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2020-06-23   

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

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