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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-557 A New Hampton IA NHTNIAXCPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-557 0 New Hampton IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-02   
641-557 1 New Hampton IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-02   
641-557 2 New Hampton IA DESMIAITX6X  5562 METROPCS, INC. 632   2018-07-09   
641-557 3 New Hampton IA GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-09-04   
641-557 4 New Hampton IA GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-05-08   
641-557 5 New Hampton IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-557 6 New Hampton IA GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-09-04   
641-557 7 New Hampton IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2017-03-25   
641-557 8 New Hampton IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2017-01-17   
641-557 9 New Hampton IA NHTNIAXCPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632   2015-09-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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