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.

San Francisco: Central DA, CA

<< 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 27 28 29 30 31 32 33 34 35 36 37 38 39 40 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
628-208 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-12-22   
628-213 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
628-213 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2017-01-28   
628-213 1 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2017-01-30   
628-213 2 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2017-01-30   
628-213 3 SNFCCA21XDZ  156J RCLEC, INC. 722   2017-09-19   
628-213 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-10-27   
628-213 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-10-27   
628-213 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-10-27   
628-213 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-11-12   
628-213 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-11-12   
628-213 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-01-27   
628-217 A SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
628-217 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-12-22   
628-217 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-12-22   
628-217 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-01-16   
628-217 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-12-11   
628-217 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-12-11   
628-217 5 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-10-20   
628-217 6 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-10-20   
628-217 7 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-10-20   
628-217 8 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-10-20   
628-217 9 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-10-20   
628-218 A HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
628-218 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2017-10-23   
628-218 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-12-18   
628-218 2 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-08-07   
628-218 3 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-08-07   
628-218 4 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-08-07   
628-218 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-16   
628-218 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-16   
628-218 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-16   
628-218 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-16   
628-218 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-16   
628-220 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
628-220 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-05-13   
628-220 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-06-02   
628-220 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-04-04   
628-220 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-04-04   
628-220 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-04-04   
628-220 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-06-02   
628-220 6 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2016-06-06   
628-220 7 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2016-06-06   
628-220 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-05-22   
628-220 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-05-22   
628-221 A SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
628-221 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-09-19   
628-221 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-08-29   
628-221 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-09-07   
628-221 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-09-07   
628-221 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-09-07   
628-221 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-09-28   
628-221 6 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-09-28   
628-221 7 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-08-29   
628-221 8 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2015-08-28   
628-221 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-09-18   
628-222 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-222 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-222 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-10-15   
628-222 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-03-21   
628-222 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-222 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-222 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-222 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-222 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-03-24   
628-222 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-222 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-03-24   
628-223 A SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
628-223 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 6 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-11-13   
628-223 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-223 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-14   
628-225 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
628-225 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-16   
628-225 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-07-13   
628-225 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-07-13   
628-225 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-07-17   
628-225 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-07-17   
628-225 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-07-19   
628-225 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-07-13   
628-225 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-07-13   
628-225 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-07-12   
628-225 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-07-12   
628-228 A SNFCCA01DS2  9740 PACIFIC BELL 722      
628-228 0 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-07-03   
628-228 1 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-07-08   
628-228 2 SNFCCA01DS2  9740 PACIFIC BELL 722   2016-03-19   
628-228 3 SNFCCA01DS2  9740 PACIFIC BELL 722   2016-03-19   
628-228 4 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2016-03-20   
628-228 5 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2016-03-20   
628-228 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-11-12   
628-228 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-07-08   
628-228 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-06-02   
628-228 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-06-02   

<< 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 27 28 29 30 31 32 33 34 35 36 37 38 39 40 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.