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: DLLSTXRNDS0

Remotes:

Switch Switch name Switch type
RCSNTXBZRS0  RICHARDSON  5ER 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-808 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-883 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-889 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-907 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-917 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-918 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-927 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-952 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-994 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-995 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-996 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-996 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-996 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 A Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
972-997 9 Dallas TX 9533 SOUTHWESTERN BELL 552      

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

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