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: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-224 A Nipomo CA SNBBCAXFXCY  939H COMMIO, LLC 740   2024-03-03   
820-224 0 Nipomo CA   939H COMMIO, LLC 740   2024-03-03   
820-224 1 Nipomo CA   939H COMMIO, LLC 740   2024-03-03   
820-224 4 Nipomo CA   145J TERRA NOVA TELECOM INC. 740   2024-03-04   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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