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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
430-313 A Winfield TX 612K CSC VOICE, LLC 554      
430-701 A Hughes Springs TX 612K CSC VOICE, LLC 554      
430-702 A Gladewater TX 612K CSC VOICE, LLC 554      
903-205 A Daingerfield TX 612K CSC VOICE, LLC 554      
903-270 A Mount Vernon TX 612K CSC VOICE, LLC 554      
903-310 A Hughes Springs TX 612K CSC VOICE, LLC 554      
903-320 A Lone Star TX 612K CSC VOICE, LLC 554      
903-339 A Jacksonville TX 612K CSC VOICE, LLC 554      
903-492 A Quitman TX 612K CSC VOICE, LLC 554      
903-605 A Lone Star TX 612K CSC VOICE, LLC 554      
903-630 A Tyler TX 612K CSC VOICE, LLC 554      
903-707 A Tyler TX 612K CSC VOICE, LLC 554      
903-800 A Daingerfield TX 612K CSC VOICE, LLC 554      

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

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