Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Rock Island, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-331 A   792K CHARTER IP ENABLED SERVICES, LLC 470      
931-331 1   792K CHARTER IP ENABLED SERVICES, LLC 470   2015-11-29   
931-331 3   145J TERRA NOVA TELECOM INC. 470   2025-08-10   
931-686 A MMRLTNXADS0  0553 BEN LOMAND RURAL TEL. COOP., INC. 470      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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