Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 0408 GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
606-452 A Wheelwright KY WHLWKYXADS0  466      
606-478 A Harold KY HRLDKYXEDS0  466      
606-479 A Harold KY HRLDKYXEDS0  466      
606-587 A Grethel KY GRTHKYXERS0  466      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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