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: SNDGCA02DS3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
619-268 A Dulzura CA 7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-598 A San Diego: Linda Vista DA CA 7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      

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

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