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: HSTNTXNADS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-215 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-232 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-277 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-350 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-355 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-366 5 Houston TX 9533 SOUTHWESTERN BELL 560   2002-10-06   
713-388 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-388 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-407 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-438 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-438 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-438 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-438 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-438 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-469 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-469 6 Houston TX 9533 SOUTHWESTERN BELL 560   2008-10-12   
713-479 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-543 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-544 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-548 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-561 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-561 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-561 6 Houston TX 9533 SOUTHWESTERN BELL 560      

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Last updated: Fri, 13 May 2022 22:16:13 UTC

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