Local Calling Guide

Area code/prefix search

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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-201 A Chippewa Lake MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-201 0 Chippewa Lake MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-201 1 Chippewa Lake MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-201 2 Chippewa Lake MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2018-04-16   
231-201 3 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-201 4 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-201 5 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-201 6 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   
231-201 7 Chippewa Lake MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS LLC 348   2015-09-16   
231-201 8 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2018-10-20   
231-201 9 Chippewa Lake MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-09-12   

Last updated: Tue, 15 Nov 2022 00:10:00 UTC

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