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.
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Switch: SNJUCACL8MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
831-850 8 Felton CA 145J TERRA NOVA TELECOM INC. 722   2023-02-17   
925-257 1 Orinda CA 145J TERRA NOVA TELECOM INC. 722   2023-04-26   
925-369 9 Martinez CA 145J TERRA NOVA TELECOM INC. 722   2023-08-07   
925-377 2 Moraga CA 145J TERRA NOVA TELECOM INC. 722   2022-11-03   
925-377 9 Moraga CA 145J TERRA NOVA TELECOM INC. 722   2023-06-27   
925-385 1 Lafayette CA 145J TERRA NOVA TELECOM INC. 722   2022-11-03   
925-385 9 Lafayette CA 145J TERRA NOVA TELECOM INC. 722   2023-06-27   
925-468 5 Pleasanton CA 145J TERRA NOVA TELECOM INC. 722   2022-11-03   
925-469 6 Pleasanton CA 145J TERRA NOVA TELECOM INC. 722   2021-09-29   
925-505 5 Livermore CA 145J TERRA NOVA TELECOM INC. 722   2022-10-17   
925-524 5 Clayton CA 145J TERRA NOVA TELECOM INC. 722   2022-11-03   
925-663 1 Sunol CA 145J TERRA NOVA TELECOM INC. 722   2023-01-14   
925-673 6 Clayton CA 145J TERRA NOVA TELECOM INC. 722   2023-06-27   
925-735 4 Bishop Ranch CA 145J TERRA NOVA TELECOM INC. 722   2022-10-31   
925-789 2 Sunol CA 145J TERRA NOVA TELECOM INC. 722   2023-08-07   
925-839 8 Martinez CA 145J TERRA NOVA TELECOM INC. 722   2023-01-14   
925-931 7 Pleasanton CA 145J TERRA NOVA TELECOM INC. 722   2023-06-27   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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