Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 408 [Rate centres in NPA 408] [Dial plan for NPA 408]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-522 2 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 3 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 4 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 5 Sunnyvale CA   145J TERRA NOVA TELECOM INC. 722   2024-09-14   
408-522 6 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 7 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 8 Sunnyvale CA   9740 PACIFIC BELL 722      
408-522 9 Sunnyvale CA   9740 PACIFIC BELL 722      
408-523 A Sunnyvale CA SNVACA01DS1  9740 PACIFIC BELL 722      
408-524 A Sunnyvale CA SNVACA01DS1  9740 PACIFIC BELL 722      
408-525 A San Jose: North DA CA SNJSCA21DS2  9740 PACIFIC BELL 722      
408-526 A San Jose: North DA CA SNJSCA21DS2  9740 PACIFIC BELL 722      
408-527 A San Jose: North DA CA SNJSCA21DS2  9740 PACIFIC BELL 722      
408-528 A San Jose: South DA CA SNJSCA15DS0  9740 PACIFIC BELL 722      
408-528 0 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 1 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 2 San Jose: South DA CA   649C ONVOY, LLC - CA 722   2019-09-06   
408-528 3 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 4 San Jose: South DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-02   
408-528 5 San Jose: South DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-02   
408-528 6 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 7 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 8 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-528 9 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-529 A San Jose: West DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
408-530 A Sunnyvale CA SNVACA01DS1  9740 PACIFIC BELL 722      
408-531 A San Jose: South DA CA SNJSCA15DS0  9740 PACIFIC BELL 722      
408-531 0 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-531 1 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-531 2 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-531 3 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-531 4 San Jose: South DA CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-02-04   
408-531 5 San Jose: South DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-02-14   
408-531 6 San Jose: South DA CA   649C ONVOY, LLC - CA 722   2004-12-18   
408-531 7 San Jose: South DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-02-14   
408-531 8 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-531 9 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 A San Jose: South DA CA SNJSCA15DS0  9740 PACIFIC BELL 722      
408-532 0 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 1 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 2 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 3 San Jose: South DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-02-10   
408-532 4 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 5 San Jose: South DA CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-03-18   
408-532 6 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 7 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 8 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-532 9 San Jose: South DA CA   9740 PACIFIC BELL 722      
408-533 A San Jose: West DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
408-533 0 San Jose: West DA CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-10-29   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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