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
415-767 4 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2013-05-23   
415-767 5   515J IP HORIZON LLC 722   2013-06-28   
415-767 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-06-28   
415-767 7 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2013-06-24   
415-767 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-06-28   
415-767 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-06-28   
415-768 A SNFCCA21DS1  9740 PACIFIC BELL 722      
415-771 A SNFCCA12DS1  9740 PACIFIC BELL 722      
415-772 A SNFCCA01DS1  9740 PACIFIC BELL 722      
415-773 A SNFCCA01DS0  9740 PACIFIC BELL 722      
415-774 A SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 0 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 1 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 2 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 3 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 4 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 5 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2006-12-01   
415-774 7 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 8 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-774 9 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-775 A SNFCCA12DS1  9740 PACIFIC BELL 722      
415-776 A SNFCCA12DS1  9740 PACIFIC BELL 722      
415-777 A SNFCCA21DS1  9740 PACIFIC BELL 722      
415-778 A SNFCCA21DS1  9740 PACIFIC BELL 722      
415-780 A SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
415-780 0 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2014-02-17   
415-780 1 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2014-02-17   
415-780 2 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2014-01-17   
415-780 3 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2014-02-17   
415-780 4 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2014-02-17   
415-780 5 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2014-02-17   
415-780 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2014-01-20   
415-780 7 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2014-01-20   
415-780 8 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2014-01-28   
415-780 9 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-03-01   
415-781 A SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 0 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 1 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 2 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 3 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 4 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 5 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 6 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 7 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 8 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-781 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-09-16   
415-782 A SNFCCA01DS2  9740 PACIFIC BELL 722      
415-783 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-786 A OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 0 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 1 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 2 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 3 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 4 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 5 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 6 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 7 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 8 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-786 9 OKLECAZV1MD  5562 METROPCS, INC. 722      
415-788 A SNFCCA01DS2  9740 PACIFIC BELL 722      
415-790 A SNFCCA21XUY  9748 AMERICAN MESSAGING SERVICES, LLC 722      
415-791 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-03-03   
415-791 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-04   
415-791 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-04   
415-791 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-04   
415-791 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-04   
415-791 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-04   
415-791 5 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-03-04   
415-791 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-03-04   
415-791 7 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2024-03-04   
415-791 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-03-03   
415-791 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2024-03-03   
415-792 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
415-792 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-26   
415-792 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-10-30   
415-792 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-10-21   
415-792 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-10-21   
415-792 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-10-30   
415-792 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-10-21   
415-792 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2016-01-26   
415-792 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-10-18   
415-792 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-10-18   
415-792 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-10-18   
415-793 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
415-794 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-795 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
415-795 0 OKLECAZV1MD  5562 METROPCS, INC. 722   2011-12-18   
415-795 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-12-20   
415-795 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-11-13   
415-795 3 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-12-20   
415-795 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-12-20   
415-795 5 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-12-20   
415-795 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2010-12-20   
415-795 7 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2011-12-18   
415-795 8 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2011-12-18   
415-795 9 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2011-12-18   
415-796 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
415-796 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-03-12   
415-796 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.