Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-737 4 South San Francisco CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-11-16   
650-737 5 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-737 6 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-737 7 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-737 8 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-737 9 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-738 A Pacifica CA PCFCCA11DS0  9740 PACIFIC BELL 722      
650-739 A Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-739 0 Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-739 1 Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-739 3 Palo Alto CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-10-28   
650-739 4 Palo Alto CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-03-08   
650-739 5 Palo Alto CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2008-09-15   
650-739 6 Palo Alto CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-10-28   
650-739 7 Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-739 8 Palo Alto CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2007-07-29   
650-739 9 Palo Alto CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2012-08-30   
650-740 A San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-741 A South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-741 0 South San Francisco CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-26   
650-741 1 South San Francisco CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-07-02   
650-741 2 South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-741 3 South San Francisco CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
650-741 4 South San Francisco CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
650-741 5 South San Francisco CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
650-741 6 South San Francisco CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2010-09-17   
650-741 7 South San Francisco CA   829J PAETEC ITEL, LLC 722   2009-11-02   
650-741 8 South San Francisco CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2010-02-19   
650-741 9 South San Francisco CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-11-22   
650-742 A South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-743 A Redwood City CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-744 A Mountain View CA SNJUCACL7MD  965H FRACTEL, LLC 722      
650-744 0 Mountain View CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-01-03   
650-744 1 Mountain View CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2021-01-03   
650-744 2 Mountain View CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-01-03   
650-744 3 Mountain View CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-01-03   
650-744 4 Mountain View CA SNJUCACL7MD  965H FRACTEL, LLC 722   2020-10-25   
650-744 5 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-12-10   
650-744 6 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-12-10   
650-744 7 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-12-10   
650-744 8 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-12-10   
650-744 9 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2020-12-10   
650-745 A South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 0 South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 1 South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 2 South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 3 South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 4 South San Francisco CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-745 5 South San Francisco CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-12-03   
650-745 6 South San Francisco CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-12-03   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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