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: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-307 A Morley MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-307 0 Morley MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-307 1 Morley MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-01-04   
231-307 2 Morley MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-17   
231-307 3 Morley MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2007-02-25   
231-307 4 Morley MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2014-09-20   
231-307 5 Morley MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2008-05-08   
231-307 6 Morley MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2018-06-02   
231-307 7 Morley MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-03-18   
231-307 8 Morley MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2008-05-08   
231-307 9 Morley MI GDRPMIBL41Z  506J TWILIO INTERNATIONAL, INC. 348   2021-07-26   

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

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