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]

NXX: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-393 A San Mateo CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-393 0 San Mateo CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2006-12-03   
650-393 1 San Mateo CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-393 2 San Mateo CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-393 3 San Mateo CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2006-07-07   
650-393 4 San Mateo CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2007-05-26   
650-393 5 San Mateo CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2007-05-26   
650-393 6 San Mateo CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-02-02   
650-393 7 San Mateo CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2008-09-15   
650-393 8 San Mateo CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-09-04   
650-393 9 San Mateo CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2006-07-07   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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