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.

Switch: GNVLSCDT85Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
828-739 1 Green Creek NC 793K TWC IP ENABLED SERVICES, LLC 430   2023-10-29   
864-424 9 Union SC 793K TWC IP ENABLED SERVICES, LLC 430   2005-01-22   
864-547 2 Clinton SC 793K TWC IP ENABLED SERVICES, LLC 430   2013-03-04   
864-588 7 Joanna SC 793K TWC IP ENABLED SERVICES, LLC 430   2024-04-21   
864-649 1 Gaffney SC 793K TWC IP ENABLED SERVICES, LLC 430   2006-07-25   
864-742 A Blacksburg SC 793K TWC IP ENABLED SERVICES, LLC 430   2025-04-23   
864-742 1 Blacksburg SC 793K TWC IP ENABLED SERVICES, LLC 430   2022-07-17   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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