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
408-541 3 Sunnyvale CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2005-09-10   
408-541 4 Sunnyvale CA   9740 PACIFIC BELL 722      
408-541 5 Sunnyvale CA   9740 PACIFIC BELL 722      
408-541 6 Sunnyvale CA   9740 PACIFIC BELL 722      
408-541 7 Sunnyvale CA   9740 PACIFIC BELL 722      
408-541 8 Sunnyvale CA   649C ONVOY, LLC - CA 722   2023-10-14   
408-541 9 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 A Sunnyvale CA SNVACA11DS0  9740 PACIFIC BELL 722      
408-542 0 Sunnyvale CA   649C ONVOY, LLC - CA 722   2010-12-05   
408-542 1 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 2 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 3 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 4 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 5 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 6 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 7 Sunnyvale CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-09-15   
408-542 8 Sunnyvale CA   9740 PACIFIC BELL 722      
408-542 9 Sunnyvale CA   318J COMCAST IP PHONE, LLC 722   2008-12-04   
408-543 A Sunnyvale CA SNVACA11DS0  9740 PACIFIC BELL 722      
408-543 0 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 1 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 2 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 3 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 4 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 5 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 6 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 7 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 8 Sunnyvale CA   9740 PACIFIC BELL 722      
408-543 9 Sunnyvale CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-01-13   
408-544 A San Jose: North DA CA SNJSCA21DS2  9740 PACIFIC BELL 722      
408-544 0 San Jose: North DA CA   6529 T-MOBILE USA, INC. 722   2004-11-14   
408-544 1 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 2 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 3 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 4 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 5 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 6 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 7 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 8 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-544 9 San Jose: North DA CA   5562 METROPCS, INC. 722   2018-10-07   
408-545 A San Jose: North DA CA SNJSCA21DS2  9740 PACIFIC BELL 722      
408-545 0 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 1 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 2 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 3 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 4 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 5 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 6 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 7 San Jose: North DA CA   9740 PACIFIC BELL 722      
408-545 8 San Jose: North DA CA   5562 METROPCS, INC. 722   2006-07-16   

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

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