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: 925

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-925 A Del Mar CA SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-925 0 Del Mar CA   145J TERRA NOVA TELECOM INC. 732   2025-10-31   
858-925 1 Del Mar CA   515J IP HORIZON LLC 732      
858-925 2 Del Mar CA   515J IP HORIZON LLC 732      
858-925 3 Del Mar CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2009-12-04   
858-925 4 Del Mar CA   6529 T-MOBILE USA, INC. 732   2013-01-03   
858-925 5 Del Mar CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2013-07-11   
858-925 6 Del Mar CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2011-10-28   
858-925 7 Del Mar CA   516C AT&T CORP. 732   2006-06-30   
858-925 8 Del Mar CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-09-26   
858-925 9 Del Mar CA   6529 T-MOBILE USA, INC. 732   2011-09-22   

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

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