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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-999 5 Los Angeles: DA 03 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-07-15   
323-999 6 Los Angeles: DA 03 CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-12-08   
323-999 7 Los Angeles: DA 03 CA ANHMCA01XEY  516C AT&T CORP. 730   2006-06-30   
323-999 8 Los Angeles: DA 03 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-02   
323-999 9 Los Angeles: DA 03 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2011-05-22   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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