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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OCN: 084K NUMBER SENTRY, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
943-229 A Atlanta Northeast GA ATLNGAQSXDX  438   2024-03-03   
943-229 4 Atlanta Northeast GA ATLNGAQSXDX  438   2024-03-03   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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