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.

Waterford: Don Pedro DA, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
209-441 A SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738      
209-441 0 SKTNCA01XKY  649C ONVOY, LLC - CA 738      
209-441 1 SKTNCACZ3MD  073H TELNYX LLC 738   2018-05-11   
209-441 2 SKTNCA01XKY  649C ONVOY, LLC - CA 738      
209-441 3 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2012-12-31   
209-441 4   649C ONVOY, LLC - CA 738   2021-03-05   
209-441 5 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2013-03-24   
209-441 6 SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738   2013-06-07   
209-441 8 SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738   2015-05-07   
209-441 9 SKTNCACZDS2  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738   2015-12-14   
209-528 A SKTNCA01XTY  4129 O1 COMMUNICATIONS, INC. - CA 738      
209-528 0 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2016-02-26   
209-528 1 SKTNCA01XTY  4129 O1 COMMUNICATIONS, INC. - CA 738      
209-528 2 SKTNCA01XTY  4129 O1 COMMUNICATIONS, INC. - CA 738      
209-528 3   508J CENTURYLINK COMMUNICATIONS LLC 738   2014-05-12   
209-528 4   649C ONVOY, LLC - CA 738   2021-05-09   
209-528 5 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2016-02-26   
209-528 6 SKTNCA01X6Y  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738   2018-09-02   
209-528 7 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2011-05-05   
209-528 8 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2013-03-23   
209-528 9 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2019-03-08   
209-852 A LGRNCA12RS0  9740 PACIFIC BELL 738      
209-852 0 LGRNCA12RS0  9740 PACIFIC BELL 738      
209-852 1 LGRNCA12RS0  9740 PACIFIC BELL 738      
209-852 2 LGRNCA12RS0  9740 PACIFIC BELL 738      
209-852 3 SKTNCACZ7MD  145J TERRA NOVA TELECOM INC. 738   2021-01-06   
209-852 4 SKTNCA01X6Y  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738   2005-07-26   
209-852 5 SKTNCA111MD  9262 UTILITY TELECOM GROUP, LLC - CA 738   2006-05-24   
209-852 6 SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738   2009-02-23   
209-852 7 SKTNCA01X6Z  516C AT&T CORP. 738   2007-09-14   
209-852 8 SKTNCA01XKY  649C ONVOY, LLC - CA 738   2019-03-08   
209-852 9 LGRNCA12RS0  9740 PACIFIC BELL 738      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.