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: 426

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-426 A El Cajon CA   649C ONVOY, LLC - CA 732   2025-05-30   
858-426 0 El Cajon CA   649C ONVOY, LLC - CA 732   2025-05-30   
858-426 1 El Cajon CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2025-06-02   
858-426 2 El Cajon CA   649C ONVOY, LLC - CA 732   2025-11-09   
858-426 3 El Cajon CA   649C ONVOY, LLC - CA 732   2025-10-26   
858-426 4 El Cajon CA   649C ONVOY, LLC - CA 732   2025-10-26   
858-426 5 El Cajon CA   624H ONVOY SPECTRUM, LLC 732   2025-10-14   
858-426 6 El Cajon CA   624H ONVOY SPECTRUM, LLC 732   2025-10-14   
858-426 7 El Cajon CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2025-07-01   
858-426 9 El Cajon CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2025-09-01   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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