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.
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Switch: NDLDTXNDDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
409-626 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-718 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-719 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-720 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-721 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-722 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-723 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-724 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-726 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-727 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-729 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-748 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      
409-749 A Nederland-Port Neches TX 9533 SOUTHWESTERN BELL 562      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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