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: 747

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-747 A La Honda CA LAHNCA11RS0  9740 PACIFIC BELL 722      
650-747 0 La Honda CA   9740 PACIFIC BELL 722      
650-747 1 La Honda CA   9740 PACIFIC BELL 722      
650-747 2 La Honda CA   649C ONVOY, LLC - CA 722   2022-09-26   
650-747 3 La Honda CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2018-12-20   
650-747 4 La Honda CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-04-01   
650-747 5 La Honda CA   9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-06-14   
650-747 6 La Honda CA   649C ONVOY, LLC - CA 722   2019-03-11   
650-747 7 La Honda CA   515J IP HORIZON LLC 722   2016-09-14   
650-747 8 La Honda CA   649C ONVOY, LLC - CA 722   2019-03-11   
650-747 9 La Honda CA   9740 PACIFIC BELL 722      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.