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.

Tivy Valley, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
559-531 A FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-531 0 FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-531 1 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2020-06-05   
559-531 2 FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2013-12-20   
559-531 3 FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2006-01-13   
559-531 4 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-06-12   
559-531 5 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-12-05   
559-531 6   145J TERRA NOVA TELECOM INC. 728   2021-04-28   
559-531 7 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2019-03-16   
559-531 8 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2019-03-16   
559-531 9 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2019-08-11   
559-618 A FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728      
559-618 0 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728      
559-618 1 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728      
559-618 2 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2004-01-28   
559-618 3 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2004-11-04   
559-618 4 FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2004-02-29   
559-618 5 FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2009-02-24   
559-618 6 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2014-03-27   
559-618 7 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2014-06-27   
559-618 8 FRSNCA0103Z  318J COMCAST IP PHONE, LLC 728   2006-09-30   
559-618 9 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2012-10-27   
559-787 A TVVYCAXFRS1  4420 FRONTIER CALIFORNIA INC. 728      
559-787 0 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2016-01-03   
559-787 1 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2017-04-10   
559-787 2 TVVYCAXFRS1  4420 FRONTIER CALIFORNIA INC. 728      
559-787 3 TVVYCAXFRS1  4420 FRONTIER CALIFORNIA INC. 728      
559-787 4 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2018-03-28   
559-787 6 FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2019-12-15   
559-787 7 FRSNCA01XMZ  073H TELNYX LLC 728   2018-06-27   
559-787 9 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2014-11-10   
559-955 A FRSNCA01XYZ  965H FRACTEL, LLC 728      
559-955 0 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2021-07-22   
559-955 1 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2022-04-23   
559-955 2 FRSNCA0101Z  516J TON80 COMMUNICATIONS, LLC 728   2022-04-05   
559-955 3 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2023-07-16   
559-955 4   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2024-09-22   
559-955 5 FRSNCA01XYZ  965H FRACTEL, LLC 728   2020-09-10   
559-955 6 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-01   
559-955 7 FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-01   
559-955 8 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2021-03-04   
559-955 9 SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2021-03-04   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.