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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Switch: SNFCCAMKX3Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
628-262 0 Belvedere CA 597F VOIP INNOVATIONS, LLC 722   2019-08-01   
628-628 1 San Francisco: Central DA CA 597F VOIP INNOVATIONS, LLC 722   2019-08-01   
669-289 1 Campbell CA 597F VOIP INNOVATIONS, LLC 722   2019-08-01   
669-295 6 San Jose: West DA CA 597F VOIP INNOVATIONS, LLC 722   2019-08-16   
831-400 A Santa Cruz CA 597F VOIP INNOVATIONS, LLC 722      
831-400 1 Santa Cruz CA 597F VOIP INNOVATIONS, LLC 722   2019-08-02   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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