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.
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Switch: DLLSTXRIXRZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
945-303 A Dallas TX 839J EON TELECOM, INC. 552      
945-303 1 Dallas TX 839J EON TELECOM, INC. 552      
972-944 A Dallas TX 839J EON TELECOM, INC. 552   2024-02-05   
972-944 1 Dallas TX 839J EON TELECOM, INC. 552      
972-944 2 Dallas TX 839J EON TELECOM, INC. 552      
972-944 3 Dallas TX 839J EON TELECOM, INC. 552      
972-944 4 Dallas TX 839J EON TELECOM, INC. 552      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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