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.

NPA: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-255 6 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 7 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 8 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-255 9 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-04-09   
628-256 A San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
628-256 0 San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2016-12-01   
628-256 1 San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2016-12-01   
628-256 2 San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2017-02-03   
628-256 3 San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2017-02-03   
628-256 4 San Francisco: Montrose-Evergreen DA CA SNJUCACL3MD  073H TELNYX LLC 722   2017-03-23   
628-256 5 San Francisco: Montrose-Evergreen DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-02-16   
628-256 6 San Francisco: Montrose-Evergreen DA CA OKLDCAMPDS0  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2017-03-09   
628-256 7 San Francisco: Montrose-Evergreen DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2017-07-09   
628-256 8 San Francisco: Montrose-Evergreen DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-12-20   
628-256 9 San Francisco: Montrose-Evergreen DA CA SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722   2016-12-02   
628-257 A Mill Valley CA SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722      
628-257 0 Mill Valley CA SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722   2016-12-25   
628-257 1 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-05-18   
628-257 2 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-05-18   
628-257 3 Mill Valley CA SNJUCACL3MD  073H TELNYX LLC 722   2017-06-05   
628-257 4 Mill Valley CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-06-19   
628-257 5 Mill Valley CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-13   
628-257 6 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-09-22   
628-257 7 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
628-257 8 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-09-22   
628-257 9 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
628-258 A Nicasio CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
628-258 0 Nicasio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-12-17   
628-258 1 Nicasio CA SNJUCACL3MD  073H TELNYX LLC 722   2018-05-11   
628-258 2 Nicasio CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-13   
628-258 3 Nicasio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-03-22   
628-258 4 Nicasio CA   515J IP HORIZON LLC 722   2021-05-01   
628-258 5 Nicasio CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2018-08-31   
628-258 6 Nicasio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-07-28   
628-258 7 Nicasio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-07-28   
628-258 8 Nicasio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2018-04-30   
628-258 9 Nicasio CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2017-12-16   
628-259 A Ignacio CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
628-259 0 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-05   
628-259 1 Ignacio CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-04-05   
628-259 2 Ignacio CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722   2018-01-08   
628-259 3 Ignacio CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722   2018-11-29   
628-259 4 Ignacio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-03-11   
628-259 5 Ignacio CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-13   
628-259 6 Ignacio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-03-11   
628-259 7 Ignacio CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2018-11-16   
628-259 8 Ignacio CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-09-29   
628-259 9 Ignacio CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-12-10   
628-260 A San Francisco: Central DA CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
628-260 0 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-03-05   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.