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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-393 A Del Mar CA SNDGCA02XHX  939H COMMIO, LLC 732   2024-03-04   
858-393 0 Del Mar CA   939H COMMIO, LLC 732   2024-03-04   
858-393 1 Del Mar CA   939H COMMIO, LLC 732   2024-03-04   
858-393 2 Del Mar CA   939H COMMIO, LLC 732   2024-03-04   
858-393 3 Del Mar CA   939H COMMIO, LLC 732   2024-03-04   
858-393 8 Del Mar CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2024-10-26   
858-393 9 Del Mar CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2024-10-26   

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

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