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: 222

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-222 A La Jolla CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2025-01-12   
858-222 0 La Jolla CA   649C ONVOY, LLC - CA 732   2008-11-27   
858-222 1 La Jolla CA   649C ONVOY, LLC - CA 732   2008-11-27   
858-222 2 La Jolla CA   649C ONVOY, LLC - CA 732   2008-11-27   
858-222 3 La Jolla CA   649C ONVOY, LLC - CA 732   2008-11-27   
858-222 4 La Jolla CA   649C ONVOY, LLC - CA 732   2008-11-27   
858-222 5 La Jolla CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2008-12-31   
858-222 6 La Jolla CA   649C ONVOY, LLC - CA 732   2009-02-03   
858-222 7 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2009-04-16   
858-222 8 La Jolla CA   649C ONVOY, LLC - CA 732   2009-04-09   
858-222 9 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2009-07-26   

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

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