Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 949 [Rate centres in NPA 949] [Dial plan for NPA 949]

NXX: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
949-923 A Irvine CA IRVNCA12DS0  9740 PACIFIC BELL 730      
949-923 0 Irvine CA   6529 T-MOBILE USA, INC. 730   2002-12-03   
949-923 1 Irvine CA   6529 T-MOBILE USA, INC. 730   2002-12-03   
949-923 2 Irvine CA   9740 PACIFIC BELL 730      
949-923 3 Irvine CA   9740 PACIFIC BELL 730      
949-923 4 Irvine CA   9740 PACIFIC BELL 730      
949-923 5 Irvine CA   6529 T-MOBILE USA, INC. 730   2005-09-06   
949-923 6 Irvine CA   9740 PACIFIC BELL 730      
949-923 7 Irvine CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-11-11   
949-923 8 Irvine CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-11-22   
949-923 9 Irvine CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-02-23   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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