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: SNDGCA0260Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
619-619 A Rancho Santa Fe CA 624H ONVOY SPECTRUM, LLC 732      
619-860 A San Diego: San Diego DA CA 624H ONVOY SPECTRUM, LLC 732      
760-286 A Oceanside: Oceanside DA CA 624H ONVOY SPECTRUM, LLC 732   2024-03-08   
858-325 A San Diego: Linda Vista DA CA 624H ONVOY SPECTRUM, LLC 732      
858-858 A San Diego: San Diego DA CA 624H ONVOY SPECTRUM, LLC 732      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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