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: ATHNTXXALMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
903-321 A Lake Palestine East TX 612K CSC VOICE, LLC 552      
903-608 A Tool-Seven Points TX 612K CSC VOICE, LLC 552      
903-710 A Bullard TX 612K CSC VOICE, LLC 552      
903-904 A Athens TX 612K CSC VOICE, LLC 552      
940-302 A Sanger TX 612K CSC VOICE, LLC 552      
940-398 A Krum TX 612K CSC VOICE, LLC 552      

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

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