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: 253

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-253 A Nome TX NOMETXXADS0  0425 CAMERON TEL CO 562      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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