Local Calling Guide

Area code/prefix search

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Viola, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-318 A   792K CHARTER IP ENABLED SERVICES, LLC 470      
931-318 1   792K CHARTER IP ENABLED SERVICES, LLC 470   2015-11-29   
931-635 A MMRLTNXADS0  0553 BEN LOMAND RURAL TEL. COOP., INC. 470      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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