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: HSTNTXSUDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-244 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-244 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-244 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-244 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-244 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-244 9 Houston TX 9533 SOUTHWESTERN BELL 560      
832-242 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-242 0 Houston TX 9533 SOUTHWESTERN BELL 560      
832-242 5 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 0 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 1 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 3 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 4 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 5 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 8 Houston TX 9533 SOUTHWESTERN BELL 560      
832-251 9 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 0 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 2 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 3 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 4 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 5 Houston TX 9533 SOUTHWESTERN BELL 560      
832-252 8 Houston TX 9533 SOUTHWESTERN BELL 560      
832-681 4 Houston TX 9533 SOUTHWESTERN BELL 560      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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