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: 329 [Rate centres in NPA 329] [Dial plan for NPA 329]

NXX: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
329-230 A Highland Mills NY MONRNYXA3MD  384C ONVOY, LLC- NY 133   2024-11-21   
329-230 0 Highland Mills NY MONRNYXA3MD  384C ONVOY, LLC- NY 133   2024-11-21   
329-230 1 Highland Mills NY   384C ONVOY, LLC- NY 133   2025-02-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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