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: DLLSTXRODS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-220 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-303 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-397 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-468 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-661 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-665 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-720 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-721 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-740 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-754 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-756 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-758 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-777 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-812 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-840 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-849 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-855 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-871 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-880 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-922 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-953 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-954 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-965 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-969 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-978 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-979 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-981 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-999 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-828 A Dallas TX 9533 SOUTHWESTERN BELL 552      

Last updated: Sat, 09 Mar 2019 02:16:03 UTC

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