Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

South San Francisco, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-442 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-26   
650-442 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-26   
650-442 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-26   
650-442 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-26   
650-442 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-05-07   
650-442 7 SNJUCACL00Z  490J DISH WIRELESS, LLC 722   2023-06-08   
650-442 8 SNJUCACL00Z  490J DISH WIRELESS, LLC 722   2023-11-04   
650-442 9 SNJUCACL4MD  939H COMMIO, LLC 722   2022-11-27   
650-452 A SNFCCA01DS5  7421 AT&T - LOCAL 722      
650-452 0 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-04-07   
650-452 1 SNFCCA01DS5  7421 AT&T - LOCAL 722      
650-452 2 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-01-05   
650-452 3 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-01-05   
650-452 4 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-01-05   
650-452 5 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-01-11   
650-452 6 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-03-18   
650-452 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-02-09   
650-452 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-11-28   
650-452 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-04-07   
650-457 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-457 0 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2015-12-08   
650-457 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-01-10   
650-457 2 SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-12-08   
650-457 3 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
650-457 4 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
650-457 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-22   
650-457 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-22   
650-457 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-03-12   
650-457 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-06-12   
650-457 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-07   
650-467 A SNBUCA02DS0  9740 PACIFIC BELL 722      
650-491 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 1 SNFCCAMKX9X  073H TELNYX LLC 722   2021-02-26   
650-491 2 OKLECAZVGT0  5562 METROPCS, INC. 722   2021-03-14   
650-491 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 4 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-09-08   
650-491 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-07-20   
650-491 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-05-20   
650-491 7 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-07-20   
650-491 8 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-491 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-12-14   
650-502 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-502 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-08   
650-502 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-08   
650-502 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-08   
650-502 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   
650-502 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   
650-502 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   
650-502 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.