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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
831-219 A SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
831-219 0 SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
831-219 1   145J TERRA NOVA TELECOM INC. 722      
831-219 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-219 3 SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-219 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-219 5 WTVLCADV0MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 722      
831-219 6 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-219 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-219 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-219 9 SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
831-251 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-257 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-257 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-257 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-257 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-257 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-257 4 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
831-257 5 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722      
831-257 6 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722      
831-257 7 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722      
831-257 8 SNJUCACL3MD  073H TELNYX LLC 722      
831-257 9 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722      
831-280 A SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 0 SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 1 SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 2 SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 3 SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 4 SNJUCACL4MD  939H COMMIO, LLC 722      
831-280 8 OKLDCAEB0MD  073H TELNYX LLC 722      
831-318 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-318 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-318 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 6 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
831-318 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 9   515J IP HORIZON LLC 722      
831-531 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-531 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-531 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-531 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-531 3 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
831-531 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-531 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-531 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-531 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-531 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-531 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-572 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 0 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 1 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 2 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 3 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 4 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 5 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
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   515J IP HORIZON LLC 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      
831-607 4   515J IP HORIZON LLC 722      
831-607 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-607 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-607 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-607 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-607 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
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      
831-612 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-612 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-612 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-612 5 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
831-612 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
831-612 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-612 8 SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722      
831-612 9 SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722      
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      
831-661 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-661 7 APTSCA12DS0  9740 PACIFIC BELL 722      
831-661 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-661 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.