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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-421 A Los Angeles: DA 12 CA LSANCA15DS0  9740 PACIFIC BELL 730      
323-421 0 Los Angeles: DA 12 CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2014-12-01   
323-421 1 Los Angeles: DA 12 CA LSANCA15DS0  9740 PACIFIC BELL 730      
323-421 2 Los Angeles: DA 12 CA LSANCA15DS0  9740 PACIFIC BELL 730      
323-421 3 Los Angeles: DA 12 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-11-19   
323-421 4 Los Angeles: DA 12 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-09-21   
323-421 6 Los Angeles: DA 12 CA ANHMCA01XEY  516C AT&T CORP. 730   2015-06-23   
323-421 7 Los Angeles: DA 12 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-04-02   
323-421 8 Los Angeles: DA 12 CA SNANCALWDS0  7262 XO CALIFORNIA, INC. 730   2005-09-12   
323-421 9 Los Angeles: DA 12 CA SNANCALWDS0  7262 XO CALIFORNIA, INC. 730   2005-09-12   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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