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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-210 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-276 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-286 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-308 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-372 A Houston TX 9533 SOUTHWESTERN BELL 560   2007-04-26   
713-374 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-379 A Houston TX 3527 TEXACOM CORPORATION 560      
713-381 A Houston TX 9533 SOUTHWESTERN BELL 560   2006-03-31   
713-405 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-495 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-615 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-646 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-650 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-651 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-652 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-654 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-655 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-750 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-751 A 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      
713-756 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-758 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-759 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-853 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-951 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-982 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-260 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-397 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-730 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-851 A Houston TX 9533 SOUTHWESTERN BELL 560      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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