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.

Aptos, CA

<< 1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
831-531 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-28   
831-531 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-06   
831-572 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 0 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-09   
831-572 1 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-09   
831-572 2 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-09   
831-572 3 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-09   
831-572 4 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-09   
831-572 5 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-12-15   
831-572 6 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 7 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 8 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 9 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-603 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-607 A SNFCCAMMDSA  4129 O1 COMMUNICATIONS, INC. - CA 722      
831-607 0   515J IP HORIZON LLC 722      
831-607 1   515J IP HORIZON LLC 722      
831-607 2   515J IP HORIZON LLC 722      
831-607 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2009-07-04   
831-607 4   515J IP HORIZON LLC 722      
831-607 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-06-13   
831-607 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-06-13   
831-607 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-06-13   
831-607 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-09-09   
831-607 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-04-01   
831-612 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-612 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-612 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-25   
831-612 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-12-14   
831-612 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-12-30   
831-612 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-12-30   
831-612 5 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-05-20   
831-612 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2013-11-23   
831-612 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-02-22   
831-612 8 SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722   2021-09-16   
831-612 9 SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722   2023-04-26   
831-661 A APTSCA12DS0  9740 PACIFIC BELL 722      
831-661 0 APTSCA12DS0  9740 PACIFIC BELL 722      
831-661 1 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-661 2 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-661 3 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-661 4 APTSCA12DS0  9740 PACIFIC BELL 722      
831-661 5 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2009-03-19   
831-661 6 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2011-01-26   
831-661 7 APTSCA12DS0  9740 PACIFIC BELL 722      
831-661 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-05-28   
831-661 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-04-30   
831-662 A APTSCA12DS0  9740 PACIFIC BELL 722      
831-684 A APTSCA12DS0  9740 PACIFIC BELL 722      
831-684 0 APTSCA12DS0  9740 PACIFIC BELL 722      

<< 1 2 3 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.