Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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South San Francisco, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-878 0   9740 PACIFIC BELL 722      
650-878 1   9740 PACIFIC BELL 722      
650-878 2   9740 PACIFIC BELL 722      
650-878 3   9740 PACIFIC BELL 722      
650-878 4   9740 PACIFIC BELL 722      
650-878 5   9740 PACIFIC BELL 722      
650-878 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-11-04   
650-878 7   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2012-10-27   
650-878 8   9740 PACIFIC BELL 722      
650-878 9   9740 PACIFIC BELL 722      
650-892 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-910 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-910 0   649C ONVOY, LLC - CA 722   2021-06-25   
650-910 1   649C ONVOY, LLC - CA 722   2021-08-13   
650-910 2   649C ONVOY, LLC - CA 722   2021-08-13   
650-910 3   649C ONVOY, LLC - CA 722   2021-08-13   
650-910 4   649C ONVOY, LLC - CA 722   2021-08-13   
650-910 5   649C ONVOY, LLC - CA 722   2021-10-02   
650-910 6   649C ONVOY, LLC - CA 722   2021-10-02   
650-910 7   649C ONVOY, LLC - CA 722   2021-10-02   
650-910 8   649C ONVOY, LLC - CA 722   2021-10-02   
650-910 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2021-06-26   
650-922 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 7   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-922 9   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-02   
650-952 A SNBUCA02DS1  9740 PACIFIC BELL 722      
650-989 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-06-23   
650-989 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-06-23   
650-989 6   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-989 8   318J COMCAST IP PHONE, LLC 722   2007-02-09   
650-989 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-07-30   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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