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: CSVLTXCTDS0

Remotes:

Switch Switch name Switch type
LCSTTXLCRS0  LACOSTE  AXR 
SBNLTXSBRS0  SABINAL  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
830-538 A Castroville TX 9533 SOUTHWESTERN BELL 566      
830-538 1 Castroville TX 9533 SOUTHWESTERN BELL 566      
830-538 2 Castroville TX 9533 SOUTHWESTERN BELL 566      
830-538 3 Castroville TX 9533 SOUTHWESTERN BELL 566      
830-538 6 Castroville TX 9533 SOUTHWESTERN BELL 566      
830-538 9 Castroville TX 9533 SOUTHWESTERN BELL 566      
830-931 A Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 0 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 2 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 3 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 4 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 5 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      
830-931 9 Castroville EMS TX 9533 SOUTHWESTERN BELL 566      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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