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: HSTNTXRIDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-390 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-390 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-391 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-440 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-701 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-701 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-701 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-701 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-715 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-715 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-715 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-715 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-741 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-743 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-746 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-747 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-748 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-749 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-842 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-889 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-487 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-487 2 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 0 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 1 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 2 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 3 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 4 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 5 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 6 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 7 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 8 Houston TX 9533 SOUTHWESTERN BELL 560      
832-842 9 Houston TX 9533 SOUTHWESTERN BELL 560      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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