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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
415-407 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
415-409 A SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 0 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 1 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 2 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 3 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 4 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-13   
415-409 6 SNFCCA12DS0  9740 PACIFIC BELL 722      
415-409 7 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-13   
415-409 8 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-409 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   
415-412 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-414 A SNFCCA21XUY  6906 AMERICAN MESSAGING SERVICES, LLC 722      
415-416 A SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722      
415-416 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-04-20   
415-416 1 SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722   2014-01-13   
415-416 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-04-25   
415-416 3 OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2014-02-24   
415-416 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-05-20   
415-416 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-05-20   
415-416 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2014-01-14   
415-416 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-05-25   
415-416 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-04-16   
415-416 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-04-16   
415-417 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-417 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-06-19   
415-417 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-06-19   
415-417 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-06-19   
415-417 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-06-25   
415-417 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-02-12   
415-417 5 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2015-06-19   
415-417 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-06-25   
415-417 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-02-12   
415-417 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-02-12   
415-417 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-02-12   
415-420 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
415-421 A SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 0 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 1 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 2 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 3 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 4 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 5 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 6 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 7 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 8 SNFCCA01DS2  9740 PACIFIC BELL 722      
415-421 9 SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-01-03   
415-423 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
415-423 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-31   

<< 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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.