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: 235 [Rate centres in NPA 235] [Dial plan for NPA 235]

NXX: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
235-529 A Fredericktown MO   093F ONVOY, LLC - MO 520   2026-02-17   
235-529 3 Fredericktown MO   114J EXIANT COMMUNICATIONS LLC 520   2026-04-24   
235-529 8 Fredericktown MO   093F ONVOY, LLC - MO 520   2026-02-17   
235-529 9 Fredericktown MO   093F ONVOY, LLC - MO 520   2026-02-17   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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