Local Calling Guide

Area code/prefix search

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Grethel, KY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
606-587 A GRTHKYXERS0  0408 GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. 466      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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