Local Calling Guide

Area code/prefix search

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

NXX: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-234 A Buckley MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-234 1 Buckley MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2016-02-04   

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

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