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: HSTNTXNADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-212 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-235 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-296 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-297 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-386 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-402 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-403 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-418 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-439 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-499 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-513 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-552 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-584 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-585 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-599 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-621 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-622 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-623 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-624 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-836 A Houston TX 9533 SOUTHWESTERN BELL 560   2011-01-14   
713-840 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-850 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-871 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-877 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-888 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-940 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-960 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-961 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-963 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-964 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-965 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-966 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-968 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-993 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-675 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-676 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-681 A Houston TX 9533 SOUTHWESTERN BELL 560      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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