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: 763

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-763 A Amble MI   792K CHARTER IP ENABLED SERVICES, LLC 348      
231-763 0 Amble MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2019-06-20   
231-763 8 Amble MI BRSPMI097MD  516J TON80 COMMUNICATIONS, LLC 348   2021-09-09   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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