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
209-487 7 Stockton CA 145J TERRA NOVA TELECOM INC. 738   2025-01-08   
209-508 A Angels Camp CA 145J TERRA NOVA TELECOM INC. 738      
209-589 1 Modesto CA 145J TERRA NOVA TELECOM INC. 738   2025-01-08   
209-810 9 Lodi CA 145J TERRA NOVA TELECOM INC. 738   2025-01-08   
209-838 9 Escalon CA 145J TERRA NOVA TELECOM INC. 738   2024-02-11   
209-962 8 Groveland CA 145J TERRA NOVA TELECOM INC. 738   2024-02-10   
209-970 0 Plymouth CA 145J TERRA NOVA TELECOM INC. 738   2024-08-27   
209-998 9 Manteca CA 145J TERRA NOVA TELECOM INC. 738   2024-02-16   
350-222 A Hughson CA 145J TERRA NOVA TELECOM INC. 738      
350-223 3 Merced CA 145J TERRA NOVA TELECOM INC. 738   2024-07-06   
350-224 4 Atwater CA 145J TERRA NOVA TELECOM INC. 738   2024-08-08   
350-227 7 Tracy CA 145J TERRA NOVA TELECOM INC. 738   2024-10-12   
350-232 2 Pinecrest CA 145J TERRA NOVA TELECOM INC. 738   2025-01-16   
350-333 A Newman CA 145J TERRA NOVA TELECOM INC. 738      
350-333 3 Newman CA 145J TERRA NOVA TELECOM INC. 738   2022-12-04   
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: Wed, 18 Jun 2025 02:30:00 UTC

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