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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NPA: 409 [Rate centres in NPA 409] [Dial plan for NPA 409]

NXX: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-320 A Beaumont TX BUMUTXHM7MD  475J CALLWORKS CORPORATION 562      
409-320 0 Beaumont TX   939H COMMIO, LLC 562   2024-02-25   
409-320 1 Beaumont TX   475J CALLWORKS CORPORATION 562   2023-11-16   
409-320 8 Beaumont TX   939H COMMIO, LLC 562   2024-02-25   

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

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