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: 838

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-838 A Campo CA SNDGCA0263Z  965H FRACTEL, LLC 732      
858-838 0 Campo CA   073H TELNYX LLC 732   2022-07-12   
858-838 1 Campo CA   939H COMMIO, LLC 732   2022-10-16   
858-838 2 Campo CA   649C ONVOY, LLC - CA 732   2022-07-12   
858-838 3 Campo CA   649C ONVOY, LLC - CA 732   2022-10-17   
858-838 4 Campo CA   073H TELNYX LLC 732   2022-11-04   
858-838 5 Campo CA   624H ONVOY SPECTRUM, LLC 732   2024-01-04   
858-838 6 Campo CA   829J PAETEC ITEL, LLC 732   2026-01-04   
858-838 8 Campo CA   965H FRACTEL, LLC 732   2022-07-11   
858-838 9 Campo CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2022-07-22   

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

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