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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-344 A Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 0 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 1 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 2 Los Angeles: DA 03 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2006-02-06   
323-344 3 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 4 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 5 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 7 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 8 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      
323-344 9 Los Angeles: DA 03 CA LSANCA56DS0  9740 PACIFIC BELL 730      

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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