Local Calling Guide

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

NXX: 450

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-450 A Mason City IA MSCYIA75JMD  068H NORTHLAND COMMUNICATIONS, INC. - IA 632      
641-450 0 Mason City IA MSCYIA75JMD  068H NORTHLAND COMMUNICATIONS, INC. - IA 632   2013-07-15   
641-450 1 Mason City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2016-03-12   
641-450 2 Mason City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2016-03-12   
641-450 3 Mason City IA DESMIADTTMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2014-08-15   
641-450 4 Mason City IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2016-10-12   
641-450 5 Mason City IA MSCYIA75JMD  068H NORTHLAND COMMUNICATIONS, INC. - IA 632   2017-10-30   
641-450 6 Mason City IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2015-05-29   
641-450 7 Mason City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2014-11-07   
641-450 8 Mason City IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2016-01-08   
641-450 9 Mason City IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-02   

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

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