Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Belfast, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-275 A   792K CHARTER IP ENABLED SERVICES, LLC 470      
931-275 0   792K CHARTER IP ENABLED SERVICES, LLC 470   2018-08-13   
931-276 A CPHLTNXADS2  0581 UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS 470      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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