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: 684

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-684 A San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 0 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 1 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 2 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 3 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 4 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 5 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 6 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 7 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      
858-684 8 San Diego: Mira Mesa DA CA SNDGCA02X5Z  9262 UTILITY TELECOM GROUP, LLC - CA 732      
858-684 9 San Diego: Mira Mesa DA CA SNDGCA16DS0  9740 PACIFIC BELL 732      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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