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: SKTNCACZ7MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-508 A Angels Camp CA 145J TERRA NOVA TELECOM INC. 738      
350-222 A Hughson CA 145J TERRA NOVA TELECOM INC. 738      
350-333 A Newman CA 145J TERRA NOVA TELECOM INC. 738      
350-444 A Snelling CA 145J TERRA NOVA TELECOM INC. 738      
350-666 A San Andreas CA 145J TERRA NOVA TELECOM INC. 738      
350-777 A Galt CA 145J TERRA NOVA TELECOM INC. 738      
350-888 A Groveland CA 145J TERRA NOVA TELECOM INC. 738      
350-999 A Gustine CA 145J TERRA NOVA TELECOM INC. 738      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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