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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OCN: 7453 U.S. TELEPACIFIC CORP. - CA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
650-243 3 South San Francisco CA   722      
650-243 4 South San Francisco CA   722      
650-243 5 South San Francisco CA   722      
650-243 6 South San Francisco CA   722      
650-243 9 South San Francisco CA   722      
650-314 7 Mountain View CA   722   2008-11-16   
650-393 8 San Mateo CA   722   2008-09-04   
650-409 A Millbrae CA SNJSCAYBDS1  722      
650-409 4 Millbrae CA   722      
650-410 4 South San Francisco CA   722   2016-08-28   
650-416 5 South San Francisco CA   722      
650-416 7 South San Francisco CA   722      
650-417 A Mountain View CA SNJSCAYBDS0  722      
650-417 2 Mountain View CA   722      
650-417 6 Mountain View CA   722      
650-417 7 Mountain View CA   722      
650-421 A Redwood City CA SNJSCAYBDS0  722      
650-421 0 Redwood City CA   722      
650-421 2 Redwood City CA   722      
650-421 4 Redwood City CA   722      
650-421 7 Redwood City CA   722      
650-421 8 Redwood City CA   722      
650-421 9 Redwood City CA   722      
650-422 7 Palo Alto CA   722   2013-08-31   
650-426 6 Mountain View CA   722   2012-03-12   
650-433 2 Palo Alto CA   722   2012-01-12   
650-433 3 Palo Alto CA   722   2007-12-27   
650-434 A Woodside CA SNJSCAYBDS0  722      
650-434 9 Woodside CA   722      
650-443 A Millbrae CA SNJSCAYBDS0  722      
650-443 1 Millbrae CA   722      
650-443 2 Millbrae CA   722      
650-443 3 Millbrae CA   722      
650-443 4 Millbrae CA   722      
650-443 9 Millbrae CA   722      
650-458 2 San Mateo CA   722   2008-11-16   
650-479 A Half Moon Bay CA SNJSCAYBDS0  722      
650-479 9 Half Moon Bay CA   722      
650-487 A La Honda CA SNJSCAYBDS0  722      
650-487 9 La Honda CA   722      
650-503 5 Redwood City CA   722      
650-503 7 Redwood City CA   722      
650-516 A Pacifica CA SNJSCAYBDS0  722      
650-516 0 Pacifica CA   722      
650-516 9 Pacifica CA   722      
650-517 A San Carlos-Belmont CA SNJSCAYBDS1  722      
650-517 1 San Carlos-Belmont CA   722      
650-517 2 San Carlos-Belmont CA   722      
650-517 5 San Carlos-Belmont CA   722      
650-517 8 San Carlos-Belmont CA   722      

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Last updated: Sun, 31 May 2020 11:59:01 UTC

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