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.

King City, CA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
831-263 A SLNSCA01DS1  4129 O1 COMMUNICATIONS, INC. - CA 736      
831-263 0 MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2016-03-05   
831-263 1   515J IP HORIZON LLC 736      
831-263 2   515J IP HORIZON LLC 736      
831-263 3 SLNSCA01XTX  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 736   2009-11-13   
831-263 4 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-07-26   
831-263 5 SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2005-07-31   
831-263 6 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2019-07-26   
831-263 7 SLNSCA01X7Y  508J CENTURYLINK COMMUNICATIONS, LLC 736   2015-11-09   
831-263 8 SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736   2016-01-07   
831-263 9 MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2014-09-28   
831-385 A KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 A KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 0 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 1 SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736   2018-09-11   
831-386 2 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 3 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 4 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 5 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 6 SLNSCA01XQX  5562 METROPCS, INC. 736   2017-03-26   
831-386 7 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 8 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-386 9 KGCYCA11DS1  9740 PACIFIC BELL 736      
831-387 A MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-387 0 MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-387 1 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-08-18   
831-387 2 MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-387 3 SLNSCA01X1Y  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 736   2019-02-11   
831-387 4 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-08-18   
831-387 5 SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736   2010-08-05   
831-387 6 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-08-18   
831-387 7 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-08-18   
831-387 8 MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-387 9 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-03-02   
831-525 A SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-525 0 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2020-08-18   
831-525 1 SLNSCA01XQX  5562 METROPCS, INC. 736   2005-11-02   
831-525 2 SLNSCA01XQX  5562 METROPCS, INC. 736   2006-08-28   
831-525 3 SLNSCA01XQX  5562 METROPCS, INC. 736   2009-06-19   
831-525 4 MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2015-04-27   
831-525 5 MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736   2010-07-04   
831-525 6 SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2012-03-10   
831-525 7 MTRYCAPM0MD  073H TELNYX LLC 736   2018-07-03   
831-525 8 SLNSCA01X5Y  516C AT&T CORP. 736   2011-09-26   
831-525 9 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2017-04-27   
831-830 A SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-830 0 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2021-03-05   
831-830 1 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2021-03-05   
831-830 2 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2021-03-05   
831-830 3 SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2021-03-05   

1 2 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.