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: TXRKTXXAX0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
430-334 1 Clarksville TX 793K TWC IP ENABLED SERVICES, LLC 554   2023-11-05   
430-488 1 Avery TX 793K TWC IP ENABLED SERVICES, LLC 554   2023-11-05   
430-543 1 Simms TX 793K TWC IP ENABLED SERVICES, LLC 554   2023-12-10   
430-697 1 Annona TX 793K TWC IP ENABLED SERVICES, LLC 554   2023-11-05   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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