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

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-427 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-427 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-483 9 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      
713-653 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-653 9 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      
713-658 0 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 2 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-658 9 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 1 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 3 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 4 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 5 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 6 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 7 Houston TX 9533 SOUTHWESTERN BELL 560      
713-659 8 Houston TX 9533 SOUTHWESTERN BELL 560      
713-739 A Houston TX 9533 SOUTHWESTERN BELL 560      

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

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