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: HSTNTXUNDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-936 3 Houston TX 9533 SOUTHWESTERN BELL 560      
281-936 4 Houston TX 9533 SOUTHWESTERN BELL 560      
281-936 5 Houston TX 9533 SOUTHWESTERN BELL 560      
281-936 6 Houston TX 9533 SOUTHWESTERN BELL 560      
281-936 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-293 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-314 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-426 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-802 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-803 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-861 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-862 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-863 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-864 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-865 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-866 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-867 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-868 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-869 A Houston TX 9533 SOUTHWESTERN BELL 560      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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