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.

Switch: SNFCCAMKX5Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
341-895 A Oakland: Alameda DA CA 506J TWILIO INTERNATIONAL INC 722      
415-704 A San Francisco: Juniper DA CA 506J TWILIO INTERNATIONAL INC 722      
628-682 A Novato CA 506J TWILIO INTERNATIONAL INC 722      
707-609 A Bodega Bay CA 506J TWILIO INTERNATIONAL INC 722      
707-614 A Forestville CA 506J TWILIO INTERNATIONAL INC 722      
707-619 A Geyserville CA 506J TWILIO INTERNATIONAL INC 722      
707-627 A Lakeport CA 506J TWILIO INTERNATIONAL INC 722      
707-650 A Pepperwood CA 506J TWILIO INTERNATIONAL INC 722      
707-698 A Tomales CA 506J TWILIO INTERNATIONAL INC 722      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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