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: 425

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-425 A Ludington MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 0 Ludington MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 2 Ludington MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-11   
231-425 3 Ludington MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2007-02-25   
231-425 4 Ludington MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2008-09-04   
231-425 5 Ludington MI MSKGMIXKFMD  691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 348   2007-04-30   
231-425 6 Ludington MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 7 Ludington MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 8 Ludington MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-425 9 Ludington MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2015-06-13   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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