Local Calling Guide

Area code/prefix search

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NPA: 615 [Rate centres in NPA 615] [Dial plan for NPA 615]

NXX: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
615-644 A Westmoreland TN LFYTTNXADS1  0573 NORTH CENTRAL TEL. COOP., INC. 470      

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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