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: 432 [Rate centres in NPA 432] [Dial plan for NPA 432]

NXX: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
432-436 A Goldsmith TX MDLDTXMUXCY  624H ONVOY SPECTRUM, LLC 542   2024-04-25   
432-436 1 Goldsmith TX MDLDTXMUXFY  515J IP HORIZON LLC 542   2025-03-10   
432-436 2 Goldsmith TX MDLDTXMUXFY  515J IP HORIZON LLC 542   2025-03-10   
432-436 4 Goldsmith TX MDLDTXMUXCY  624H ONVOY SPECTRUM, LLC 542   2024-04-25   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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