Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 765

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-765 A La Jolla CA SNDGCA02XOZ  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-765 0 La Jolla CA   939H COMMIO, LLC 732   2021-10-15   
858-765 1 La Jolla CA   939H COMMIO, LLC 732   2021-10-15   
858-765 2 La Jolla CA   939H COMMIO, LLC 732   2021-10-15   
858-765 3 La Jolla CA   939H COMMIO, LLC 732   2021-10-15   
858-765 4 La Jolla CA   7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732   2021-09-17   
858-765 5 La Jolla CA   939H COMMIO, LLC 732   2021-10-15   
858-765 6 La Jolla CA   649C ONVOY, LLC - CA 732   2022-12-15   
858-765 7 La Jolla CA   7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732   2021-11-03   
858-765 8 La Jolla CA   624H ONVOY SPECTRUM, LLC 732   2021-11-13   
858-765 9 La Jolla CA   624H ONVOY SPECTRUM, LLC 732   2021-11-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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