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: 881

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-881 A San Diego: San Diego DA CA   193E 8X8, INC. 732   2026-07-13   
858-881 0 San Diego: San Diego DA CA   649C ONVOY, LLC - CA 732   2026-07-14   
858-881 1 San Diego: San Diego DA CA   193E 8X8, INC. 732   2026-07-13   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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