Local Calling Guide

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

NXX: 861

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-861 A Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 0 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 1 Shelby MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-07-17   
231-861 2 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 3 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 4 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 5 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 6 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 7 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 8 Shelby MI SHLBMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-861 9 Shelby MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348   2005-02-18   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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