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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-256 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-256 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-256 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 A Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
469-522 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-241 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-243 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-247 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-277 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-280 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-406 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-481 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-484 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-488 4 Dallas TX 9533 SOUTHWESTERN BELL 552      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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