Local Calling Guide

Area code/prefix search

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North Springs, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-621 A GNBOTNXADS1  0579 TWIN LAKES TEL. COOP. CORP. 470      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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