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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-321 A Los Angeles: DA 09 CA GRDNCA01DS0  9740 PACIFIC BELL 730      
323-321 0 Los Angeles: DA 09 CA GRDNCA01DS0  9740 PACIFIC BELL 730      
323-321 1 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-04-25   
323-321 2 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-04-25   
323-321 3 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-07-05   
323-321 4 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-07-05   
323-321 5 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-09-05   
323-321 6 Los Angeles: DA 09 CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2015-04-25   
323-321 7 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2017-05-01   
323-321 8 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-10-24   
323-321 9 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-11-22   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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