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
628-286 7 San Francisco: Montrose-Evergreen DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 8 San Francisco: Montrose-Evergreen DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 9 San Francisco: Montrose-Evergreen DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-288 A Mill Valley CA SNJUCACL7MD  965H FRACTEL LLC 722      
628-288 0 Mill Valley CA OKLECAZVGT0  5562 METRO PCS, INC. 722   2020-07-26   
628-288 1 Mill Valley CA OKLECAZVGT0  5562 METRO PCS, INC. 722   2020-07-26   
628-288 2 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-07-28   
628-288 3 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-08-17   
628-288 4 Mill Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-08-17   
628-288 5 Mill Valley CA SNFCCAMKX5Y  506J TWILIO INTERNATIONAL INC 722   2020-10-01   
628-288 6 Mill Valley CA SNJUCACL7MD  965H FRACTEL LLC 722   2019-07-16   
628-288 7 Mill Valley CA   649C ONVOY, LLC - CA 722   2021-03-04   
628-288 8 Mill Valley CA SNJUCACL7MD  965H FRACTEL LLC 722   2019-05-14   
628-288 9 Mill Valley CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2019-09-13   
628-300 A San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-300 0 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-05-14   
628-300 1 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-05-14   
628-300 2 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-05-14   
628-300 3 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-05-14   
628-300 4 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-05-14   
628-300 5 San Francisco: Central DA CA OKLDCA61DMD  6664 SPRINT SPECTRUM L.P. 722   2015-05-15   
628-300 6 San Francisco: Central DA CA OKLDCA61DMD  6664 SPRINT SPECTRUM L.P. 722   2015-05-15   
628-300 7 San Francisco: Central DA CA OKLDCA61DMD  6664 SPRINT SPECTRUM L.P. 722   2015-05-15   
628-300 8 San Francisco: Central DA CA OKLDCA61DMD  6664 SPRINT SPECTRUM L.P. 722   2015-05-15   
628-300 9 San Francisco: Central DA CA OKLDCA61DMD  6664 SPRINT SPECTRUM L.P. 722   2015-05-15   
628-333 A San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-333 0 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-333 1 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-333 2 San Francisco: Central DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-333 3 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-03-21   
628-333 4 San Francisco: Central DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-333 5 San Francisco: Central DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-333 6 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-03-24   
628-333 7 San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-03-24   
628-333 8 San Francisco: Central DA CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-333 9 San Francisco: Central DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-336 A San Rafael CA SNJUCACL7MD  965H FRACTEL LLC 722      
628-336 0 San Rafael CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-06-17   
628-336 1 San Rafael CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-09-06   
628-336 2 San Rafael CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-05-15   
628-336 3 San Rafael CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2019-07-13   
628-336 4 San Rafael CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-09-06   
628-336 5 San Rafael CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722   2019-07-26   
628-336 6 San Rafael CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722   2019-07-01   
628-336 7 San Rafael CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722   2019-07-26   
628-336 8 San Rafael CA SNJUCACL7MD  965H FRACTEL LLC 722   2019-05-14   
628-336 9 San Rafael CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722   2019-07-26   
628-345 A Point Reyes CA SNJUCACL7MD  965H FRACTEL LLC 722      
628-345 2 Point Reyes CA   649C ONVOY, LLC - CA 722   2021-03-04   
628-345 3 Point Reyes CA   649C ONVOY, LLC - CA 722   2021-03-04   

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.