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: 833

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-833 A Wolverine MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-833 0 Wolverine MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2005-06-02   
231-833 1 Wolverine MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-03-06   
231-833 2 Wolverine MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2015-06-15   
231-833 3 Wolverine MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2015-06-15   
231-833 4 Wolverine MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2015-06-15   
231-833 5 Wolverine MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2017-05-08   
231-833 6 Wolverine MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2015-12-31   
231-833 7 Wolverine MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-19   
231-833 8 Wolverine MI BRSPMI09DS0  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2018-12-28   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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