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: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-780 A Rancho Penasquitos CA RNPSCA11DS0  9740 PACIFIC BELL 732      
858-780 0 Rancho Penasquitos CA   9740 PACIFIC BELL 732      
858-780 1 Rancho Penasquitos CA   9740 PACIFIC BELL 732      
858-780 2 Rancho Penasquitos CA   9740 PACIFIC BELL 732      
858-780 3 Rancho Penasquitos CA   9740 PACIFIC BELL 732      
858-780 4 Rancho Penasquitos CA   649C ONVOY, LLC - CA 732   2014-10-15   
858-780 5 Rancho Penasquitos CA   649C ONVOY, LLC - CA 732   2014-10-15   
858-780 6 Rancho Penasquitos CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2012-02-29   
858-780 7 Rancho Penasquitos CA   624H ONVOY SPECTRUM, LLC 732   2021-12-10   
858-780 8 Rancho Penasquitos CA   9740 PACIFIC BELL 732      
858-780 9 Rancho Penasquitos CA   9740 PACIFIC BELL 732      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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