Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 949 [Rate centres in NPA 949] [Dial plan for NPA 949]

NXX: 975

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
949-975 A Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 0 Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 1 Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 2 Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 3 Irvine CA IRVNCA12DS0  9740 PACIFIC BELL 730      
949-975 4 Irvine CA IRVNCA12DS0  9740 PACIFIC BELL 730      
949-975 5 Irvine CA IRVNCA12DS0  9740 PACIFIC BELL 730      
949-975 6 Irvine CA IRVNCA12DS0  9740 PACIFIC BELL 730      
949-975 7 Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 8 Irvine CA IRVNCA11DS0  9740 PACIFIC BELL 730      
949-975 9 Irvine CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2012-09-01   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.