Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-742 A Hart MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-742 0 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-742 1 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-742 2 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2006-07-06   
231-742 3 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2009-10-30   
231-742 4 Hart MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2008-03-13   
231-742 5 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-05-18   
231-742 6 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2010-09-30   
231-742 7 Hart MI   543C ONVOY, LLC - MI 348   2013-03-18   
231-742 8 Hart MI   991E BANDWIDTH.COM CLEC, LLC - MI 348   2009-03-07   
231-742 9 Hart MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2016-07-29   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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