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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNDGCA02XHX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
858-855 8 El Cajon CA 939H COMMIO, LLC 732      
858-855 9 El Cajon CA 939H COMMIO, LLC 732      
858-944 1 San Diego: Linda Vista DA CA 939H COMMIO, LLC 732      
858-944 2 San Diego: Linda Vista DA CA 939H COMMIO, LLC 732      
858-944 3 San Diego: Linda Vista DA CA 939H COMMIO, LLC 732      
858-944 7 San Diego: Linda Vista DA CA 939H COMMIO, LLC 732      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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