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: 568

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-568 A La Jolla CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
858-568 0 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 1 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 2 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 3 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 4 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 5 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 6 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-10-30   
858-568 7 La Jolla CA   649C ONVOY, LLC - CA 732   2008-07-13   
858-568 8 La Jolla CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2007-08-03   
858-568 9 La Jolla CA   829J PAETEC ITEL, LLC 732   2008-08-25   

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

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