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: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-292 A Whitehall MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-292 0 Whitehall MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-02-26   
231-292 1 Whitehall MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2010-09-13   
231-292 2 Whitehall MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2010-09-30   
231-292 3 Whitehall MI GDRQMIBODS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2013-01-07   
231-292 5 Whitehall MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-02-26   
231-292 6 Whitehall MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2016-01-21   
231-292 7 Whitehall MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-19   
231-292 8 Whitehall MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2014-09-14   
231-292 9 Whitehall MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   

Last updated: Sat, 25 Feb 2023 02:10:49 UTC

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