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: 646

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-646 A Ellsworth MI ELWOMIXHRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-646 0 Ellsworth MI   0695 FRONTIER NORTH, INC. - MI 348      
231-646 7 Ellsworth MI   7575 CENTURYLINK COMMUNICATIONS LLC 348   2015-09-17   
231-646 8 Ellsworth MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2006-05-31   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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