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.

Half Moon Bay, CA

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-276 A OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-276 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-02-14   
650-276 1 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-276 2 OKLECAZVGT0  5562 METROPCS, INC. 722   2022-05-23   
650-276 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-09-05   
650-276 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-01-13   
650-276 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-09-05   
650-276 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2009-06-09   
650-276 7 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-10-28   
650-276 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2010-01-10   
650-276 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2010-01-10   
650-284 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-284 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-284 1 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-284 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-284 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-284 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2003-01-29   
650-284 5   145J TERRA NOVA TELECOM INC. 722   2021-01-08   
650-284 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-08-31   
650-284 7 OKLECAZVGT0  5562 METROPCS, INC. 722   2020-05-28   
650-284 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2008-05-31   
650-284 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-03-26   
650-309 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-309 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
650-309 1 SNJUCACL3MD  073H TELNYX LLC 722   2017-07-14   
650-309 2 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 3 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 4 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
650-309 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-09-01   
650-309 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-09-01   
650-309 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-08-11   
650-309 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-07-13   
650-338 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-338 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-01-06   
650-338 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-01-06   
650-338 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-02-09   
650-338 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-02-09   
650-338 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-02-09   
650-338 5 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-02-02   
650-338 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-402 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-402 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-03-02   
650-402 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-03-02   
650-402 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-03-02   
650-402 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-06-07   
650-402 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-06-07   

1 2 3 4 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.