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: HSTNTXSUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-243 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-260 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-266 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-267 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-268 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-273 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-278 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-334 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-339 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-361 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-430 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-435 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-458 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-532 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-536 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-587 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-689 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-706 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-735 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-780 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-781 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-782 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-783 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-784 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-785 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-787 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-788 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-789 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-808 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-878 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-914 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-917 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-918 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-952 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-953 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-954 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-972 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-974 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-975 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-977 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-978 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-994 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-488 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-765 A Houston TX 9533 SOUTHWESTERN BELL 560   2012-06-13   

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

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