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: LLNGTXLURS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
830-875 A Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 1 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 2 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 3 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 5 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 6 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 8 Luling TX 9533 SOUTHWESTERN BELL 566      
830-875 9 Luling TX 9533 SOUTHWESTERN BELL 566      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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