Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-670 A Mount Horeb WI   792K CHARTER IP ENABLED SERVICES, LLC 354      
608-670 0 Mount Horeb WI   792K CHARTER IP ENABLED SERVICES, LLC 354   2020-07-30   
608-670 7 Mount Horeb WI MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2024-01-25   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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