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: HSTNTXMCDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-383 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-383 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-384 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-384 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-391 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-391 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-394 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-442 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-500 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-512 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-558 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-563 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-566 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-578 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-610 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-677 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-677 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-677 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-677 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-677 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-704 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-745 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-770 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-770 0 Houston TX 9533 SOUTHWESTERN BELL 560      

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

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