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: 952

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-952 A La Jolla CA SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-952 0 La Jolla CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2006-02-09   
858-952 1 La Jolla CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2006-02-09   
858-952 2 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-02-10   
858-952 3 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-02-10   
858-952 4 La Jolla CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-02-23   
858-952 5 La Jolla CA   649C ONVOY, LLC - CA 732   2006-08-19   
858-952 6 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-08-20   
858-952 7 La Jolla CA   318J COMCAST IP PHONE, LLC 732   2006-05-23   
858-952 8 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-06-26   
858-952 9 La Jolla CA   5562 METROPCS, INC. 732   2006-04-17   

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

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