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: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-456 A Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-456 0 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-456 1 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-456 2 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-456 3 Pescadero CA SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722   2024-09-14   
650-456 4 Pescadero CA   145J TERRA NOVA TELECOM INC. 722   2025-10-16   
650-456 5 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-05-08   
650-456 6 Pescadero CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-04-01   
650-456 7 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2006-01-09   
650-456 8 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-05-08   
650-456 9 Pescadero CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-22   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.