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.

Palo Alto, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-531 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2020-09-14   
650-543 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-546 A SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-546 0   515J IP HORIZON LLC 722   2015-10-31   
650-546 1 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-21   
650-546 2 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-10-31   
650-546 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-11-26   
650-546 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-13   
650-546 5 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2015-10-31   
650-546 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-02   
650-546 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-13   
650-546 8 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-10-30   
650-546 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2016-01-25   
650-561 A MNPKCA11DS0  9740 PACIFIC BELL 722      
650-561 0 MNPKCA11DS0  9740 PACIFIC BELL 722      
650-561 1 MNPKCA11DS0  9740 PACIFIC BELL 722      
650-561 2 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2011-01-31   
650-561 3 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-11-02   
650-561 4 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-11-02   
650-561 5 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2011-01-31   
650-561 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-26   
650-561 7 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2007-06-04   
650-561 8 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2007-06-04   
650-561 9 MNPKCA11DS0  9740 PACIFIC BELL 722      
650-565 A PLALCA12DS0  9740 PACIFIC BELL 722      
650-566 A PLALCA02DS0  9740 PACIFIC BELL 722      
650-575 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-586 A SNJUCACL3MD  073H TELNYX LLC 722      
650-586 0 SNJUCACL3MD  073H TELNYX LLC 722   2021-03-25   
650-586 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-07-12   
650-586 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-08-16   
650-586 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-22   
650-586 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-22   
650-586 5 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-05-23   
650-586 6 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-05-23   
650-586 7 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2021-05-30   
650-586 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-06-28   
650-586 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2021-08-30   
650-600 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-600 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-08-11   
650-600 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-09-06   
650-600 2 OKLECAZVGT0  5562 METROPCS, INC. 722   2012-09-17   
650-600 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-08-14   
650-600 4 OKLECAZVGT0  5562 METROPCS, INC. 722   2012-09-17   
650-600 5 OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2012-09-26   
650-600 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-08-11   
650-600 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-08-28   
650-600 8 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2013-01-11   
650-600 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-02-22   
650-606 A   624H ONVOY SPECTRUM, LLC 722   2024-03-08   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.