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: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-233 A La Jolla CA SNDJCAHGDS0  7894 NORTH COUNTY COMMUNICATION CORPORATION - CA 732      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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