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.

NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 944

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-944 A San Diego: Linda Vista DA CA SNDGCA0263Z  965H FRACTEL, LLC 732      
858-944 0 San Diego: Linda Vista DA CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-944 1 San Diego: Linda Vista DA CA SNDGCA02XHX  939H COMMIO, LLC 732      
858-944 2 San Diego: Linda Vista DA CA SNDGCA02XHX  939H COMMIO, LLC 732      
858-944 3 San Diego: Linda Vista DA CA SNDGCA02XHX  939H COMMIO, LLC 732      
858-944 4 San Diego: Linda Vista DA CA SNDGCA0263Z  965H FRACTEL, LLC 732      
858-944 6 San Diego: Linda Vista DA CA SNDGCA02XOZ  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-944 7 San Diego: Linda Vista DA CA SNDGCA02XHX  939H COMMIO, LLC 732      
858-944 8 San Diego: Linda Vista DA CA SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732      
858-944 9 San Diego: Linda Vista DA CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.