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: DLLSTX37XWZ

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
940-277 A Gainesville TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-278 A Justin TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-287 A Denton TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-289 A Tioga TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-290 A Aubrey TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-291 A Gainesville TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-324 A Pilot Point TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-331 A Denton TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-373 A Justin TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
940-828 A Bartonville TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-205 A Blue Ridge TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-228 A Cedar Hill TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-231 A Seagoville TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-242 A Forney TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-260 A Frisco TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-261 A Grand Prairie TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-270 A Lewisville TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-271 A Waxahachie TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-287 A Plano TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-288 A Irving TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      
945-351 A Dallas TX 004F BANDWIDTH.COM CLEC, LLC - TX 552   2024-11-09   
945-352 A Grand Prairie TX 004F BANDWIDTH.COM CLEC, LLC - TX 552   2024-11-23   
972-674 A Dallas TX 004F BANDWIDTH.COM CLEC, LLC - TX 552      

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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