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: 386 [Rate centres in NPA 386] [Dial plan for NPA 386]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
386-421 A Orange City FL   937C ONVOY, LLC - FL 45808   2025-10-03   
386-421 0 Orange City FL   937C ONVOY, LLC - FL 45808   2025-10-03   
386-421 1 Orange City FL   937C ONVOY, LLC - FL 45808   2025-10-19   
386-421 8 Orange City FL   937C ONVOY, LLC - FL 45808   2025-10-19   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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