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: DLLSTXHW6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-379 A Dallas TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
469-447 A Crandall TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
469-637 A Lewisville TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
682-253 A Atlas TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
682-459 A Cleburne TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
817-458 A Weatherford TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
817-519 A North Richland Hills TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
817-634 A Kennedale TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
817-728 A Mansfield TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
817-855 A Arlington TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
903-494 A Greenville TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
945-256 A Allen TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
945-258 A Dallas TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
972-210 A Terrell TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
972-354 A Dallas TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
972-469 A Frisco TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      
972-993 A Dallas TX 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552      

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

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