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: 363

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-363 A Jacumba CA SNDGCA02XHX  939H COMMIO, LLC 732      
858-363 0 Jacumba CA   939H COMMIO, LLC 732   2023-01-02   
858-363 1 Jacumba CA   939H COMMIO, LLC 732   2023-01-02   
858-363 2 Jacumba CA   939H COMMIO, LLC 732   2023-01-02   
858-363 3 Jacumba CA   649C ONVOY, LLC - CA 732   2023-01-03   
858-363 4 Jacumba CA   939H COMMIO, LLC 732   2024-01-28   
858-363 8 Jacumba CA   073H TELNYX LLC 732   2023-03-19   
858-363 9 Jacumba CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2023-01-03   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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