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.

OCN: 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
415-321 6 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 7 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-321 8 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-339 4 Sausalito CA SNJSCAYB0MD  722      
415-339 6 Sausalito CA SNJSCAYB0MD  722   2001-03-30   
415-361 4 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-06-07   
415-366 4 Belvedere CA SNJSCAYB0MD  722      
415-384 3 Mill Valley CA SNJSCAYB0MD  722   2000-10-04   
415-384 4 Mill Valley CA SNJSCAYB0MD  722   2000-10-04   
415-390 4 Point Reyes CA SNJSCAYB0MD  722   2009-10-01   
415-400 7 San Francisco: Central DA CA SNJSCAYB0MD  722   2009-04-25   
415-400 8 San Francisco: Central DA CA SNJSCAYB0MD  722   2009-04-25   
415-410 A San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-410 0 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-410 2 San Francisco: Montrose-Evergreen DA CA SNJSCAYB0MD  722      
415-417 3 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-06-25   
415-417 6 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-06-25   
415-419 A San Rafael CA SNJSCAYB0MD  722      
415-419 0 San Rafael CA SNJSCAYB0MD  722      
415-419 3 San Rafael CA SNJSCAYB0MD  722      
415-426 3 San Francisco: Central DA CA SNJSCAYB0MD  722   2011-12-27   
415-426 6 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-03-16   
415-430 A San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 0 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 1 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 2 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 3 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 4 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-430 6 San Francisco: Central DA CA SNJSCAYB0MD  722      
415-432 1 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-04-02   
415-432 2 San Francisco: Central DA CA SNJSCAYBDS0  722   2012-01-09   
415-432 4 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-04-02   
415-432 5 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-03-16   
415-470 5 San Francisco: Central DA CA SNJSCAYB0MD  722   2012-05-31   
415-471 2 San Francisco: Central DA CA SNJSCAYB0MD  722   2011-12-05   
415-475 4 Ignacio CA SNJSCAYB0MD  722   2000-10-04   
415-475 5 Ignacio CA SNJSCAYB0MD  722   2000-10-04   
415-475 6 Ignacio CA SNJSCAYB0MD  722   2000-10-04   
415-483 8 Ignacio CA SNJSCAYB0MD  722   2007-12-27   
415-493 2 Novato CA SNJSCAYB0MD  722   2000-10-04   
415-493 3 Novato CA SNJSCAYB0MD  722   2000-10-04   
415-493 4 Novato CA SNJSCAYB0MD  722   2000-10-04   
415-496 2 Corte Madera CA SNJSCAYB0MD  722   2000-10-04   
415-510 7 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-03-16   
415-510 8 San Francisco: Central DA CA SNJSCAYB0MD  722   2015-03-16   
415-525 8 San Francisco: Central DA CA SNJSCAYB0MD  722   2008-10-16   
415-526 A San Rafael CA SNJSCAYB0MD  722      
415-526 0 San Rafael CA SNJSCAYB0MD  722      
415-526 1 San Rafael CA SNJSCAYB0MD  722      
415-526 2 San Rafael CA SNJSCAYB0MD  722      

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

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