Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

NXX: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-452 A Los Angeles: DA 13 CA   793K TWC IP ENABLED SERVICES, LLC 730      
323-452 0 Los Angeles: DA 13 CA   793K TWC IP ENABLED SERVICES, LLC 730   2012-11-25   
323-452 1 Los Angeles: DA 13 CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-15   
323-452 2 Los Angeles: DA 13 CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-15   
323-452 3 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 4 Los Angeles: DA 13 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-12-23   
323-452 5 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 6 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 7 Los Angeles: DA 13 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-08-28   
323-452 8 Los Angeles: DA 13 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-10-24   
323-452 9 Los Angeles: DA 13 CA   793K TWC IP ENABLED SERVICES, LLC 730   2012-07-14   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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