Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX: 243

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-243 A Camarillo CA   649C ONVOY, LLC - CA 730   2025-11-23   
820-243 0 Camarillo CA   649C ONVOY, LLC - CA 730   2025-11-23   
820-243 1 Camarillo CA   516C AT&T CORP. 730   2026-01-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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