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 >>

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 OKLECAZV1MD  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 OKLECAZV1MD  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 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2010-01-10   
650-276 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2010-01-10   
650-284 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-284 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-284 1 OKLECAZV1MD  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 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2007-08-31   
650-284 7 OKLECAZV1MD  5562 METROPCS, INC. 722   2020-05-28   
650-284 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2008-05-31   
650-284 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2007-03-26   
650-309 A OKLECAZV1MD  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 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 3 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 4 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-10-13   
650-309 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
650-309 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-09-01   
650-309 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-09-01   
650-309 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-08-11   
650-309 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-07-13   
650-338 A OKLECAZV1MD  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 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-338 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-12-28   
650-402 A OKLECAZV1MD  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   
650-402 5 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2018-10-29   
650-402 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2018-10-29   
650-402 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2018-09-08   
650-402 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2018-09-08   
650-402 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2018-03-18   
650-440 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-440 0 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-440 1 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-09-18   
650-440 2 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2006-09-17   
650-440 3 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2006-05-05   
650-440 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2007-06-01   
650-440 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-28   
650-440 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-28   
650-440 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-29   
650-440 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-12-15   
650-440 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-459 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-459 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-06   
650-459 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-06   
650-459 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-06   
650-459 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-06-09   
650-459 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   
650-459 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-04-12   
650-459 7 SNFCCAMKX9X  073H TELNYX LLC 722   2021-02-27   
650-459 8 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-12-10   
650-459 9 SNJUCACL3MD  073H TELNYX LLC 722   2019-07-19   
650-476 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-476 0 SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722   2016-11-20   
650-476 1 OKLECAZV1MD  5562 METROPCS, INC. 722   2016-12-31   
650-476 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-06-16   
650-476 3 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-05-28   
650-476 4 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-12-23   
650-476 5 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-12-23   
650-476 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-12-23   
650-476 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-11-12   
650-476 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-11-12   
650-476 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-11-12   
650-479 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-479 0 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-09-02   
650-479 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-11-16   
650-479 2 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-09-02   
650-479 3 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-08-01   
650-479 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-04-01   
650-479 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
650-479 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
650-479 7 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-09-02   
650-479 8 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2010-09-02   
650-479 9 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-560 A HMBACA12DS0  9740 PACIFIC BELL 722      
650-560 0 HMBACA12DS0  9740 PACIFIC BELL 722      

1 2 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.