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: DLLSTXHARPA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-421 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-426 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-428 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-565 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-928 9 Dallas TX 9533 SOUTHWESTERN BELL 552      

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

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