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.

Oakland: Berkeley DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
510-570 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-12-23   
510-570 4 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-04-14   
510-570 5 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-04-14   
510-570 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2017-11-15   
510-570 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2017-09-01   
510-570 8 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-07-01   
510-570 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-11-25   
510-616 A SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
510-616 0 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-02-01   
510-616 1 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-02-01   
510-616 2 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-02-01   
510-616 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-02-16   
510-616 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-02-16   
510-616 5 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2018-11-09   
510-616 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-12-23   
510-616 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-02-16   
510-616 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2018-04-02   
510-616 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2019-01-02   
510-631 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-631 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-01-13   
510-631 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-11-17   
510-631 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-07-05   
510-631 3 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
510-631 4 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
510-631 5 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
510-631 6 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-12-28   
510-631 7 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-11-16   
510-631 8 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-11-16   
510-631 9 SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-11-16   
510-642 A BKLYCA01DS0  9740 PACIFIC BELL 722      
510-643 A BKLYCA01DS0  9740 PACIFIC BELL 722      
510-644 A BKLYCA01DS1  9740 PACIFIC BELL 722      
510-646 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-646 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-05-03   
510-646 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-05-03   
510-646 2 OKLECAZV1MD  5562 METROPCS, INC. 722   2013-05-06   
510-646 3 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-12-22   
510-646 4 SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2013-06-25   
510-646 5 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-07-25   
510-646 6 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-06-21   
510-646 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2013-06-13   
510-646 8 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-05-06   
510-646 9 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-05-06   
510-647 A BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 0 BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 1 BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 2 BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 3 BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 4 BKLYCA01DS0  9740 PACIFIC BELL 722      
510-647 5 BKLYCA01DS0  9740 PACIFIC BELL 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.