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: BUMTTXATBMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
409-365 A Port Arthur TX 7421 AT&T - LOCAL 562      
409-365 1 Port Arthur TX 7421 AT&T - LOCAL 562      
409-678 A Beaumont TX 7421 AT&T - LOCAL 562      
409-678 9 Beaumont TX 7421 AT&T - LOCAL 562      

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

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