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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-566 A Harrietta MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348      
231-566 0 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-06   
231-566 1 Harrietta MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2023-05-28   
231-566 5 Harrietta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2022-12-29   
231-566 6 Harrietta MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348   2022-04-23   

Last updated: Mon, 01 Apr 2024 02:18:34 UTC

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