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: HSTNTXNADS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-561 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-561 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-561 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-572 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-625 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-626 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-627 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-629 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-693 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-843 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-881 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-892 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-985 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-985 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-985 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-985 3 Houston TX 9533 SOUTHWESTERN BELL 560      

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

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