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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Switch: DLLSTXLADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-219 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-224 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-252 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-266 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-409 A Dallas TX 9533 SOUTHWESTERN BELL 552   2007-02-24   
214-443 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-520 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-521 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-522 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-523 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-525 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-526 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-528 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-559 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-590 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-599 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-780 A Dallas TX 9533 SOUTHWESTERN BELL 552      
469-413 A Dallas TX 9533 SOUTHWESTERN BELL 552   2012-12-17   
469-419 A Dallas TX 9533 SOUTHWESTERN BELL 552   2012-12-17   

Last updated: Sat, 23 Mar 2019 01:32:05 UTC

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