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: DLLSTXADDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-866 A Dallas TX 9533 SOUTHWESTERN BELL 552      
469-201 A Dallas TX 9533 SOUTHWESTERN BELL 552      
469-791 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-338 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-340 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-341 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-361 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-362 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-364 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-371 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-376 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-404 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-448 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-450 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-458 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-503 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-591 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-684 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-685 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-687 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-701 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-702 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-716 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-720 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-726 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-770 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-774 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-776 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-778 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-789 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-851 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-855 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-856 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-866 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-960 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-982 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-991 A Dallas TX 9533 SOUTHWESTERN BELL 552      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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