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: 688

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-688 A Merritt MI BRSPMI095MD  965H FRACTEL, LLC 348      
231-688 1 Merritt MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2023-03-19   
231-688 8 Merritt MI BRSPMI095MD  965H FRACTEL, LLC 348   2020-04-13   

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

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