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: HSTNTXCLDS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-739 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-752 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-753 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-754 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-756 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 7 Houston TX 9533 SOUTHWESTERN BELL 560      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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