Local Calling Guide

Area code/prefix search

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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-231 A Clear Lake IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632      
641-231 0 Clear Lake IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2015-05-10   
641-231 1 Clear Lake IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2004-12-09   
641-231 2 Clear Lake IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2012-10-22   
641-231 3 Clear Lake IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-02   
641-231 4 Clear Lake IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2015-10-11   
641-231 5 Clear Lake IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2016-05-23   
641-231 6 Clear Lake IA DESMIADTXZX  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2016-10-26   
641-231 7 Clear Lake IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-02   
641-231 8 Clear Lake IA DESMIAITX1X  751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-231 9 Clear Lake IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2020-12-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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