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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
341-946 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-08-08   
341-946 3 SNJUCACL7MD  965H FRACTEL, LLC 722   2021-04-23   
341-946 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-08-08   
341-946 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-08-08   
341-946 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-10-02   
341-946 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-10-02   
341-946 8 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-10-02   
341-946 9 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2021-08-31   
510-204 A BKLYCA01DS1  9740 PACIFIC BELL 722      
510-225 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 2 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 3 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-05-12   
510-225 6 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-225 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-05-12   
510-225 9 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-229 A BKLYCA01DS1  9740 PACIFIC BELL 722      
510-229 0 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2004-11-05   
510-229 1 BKLYCA01DS1  9740 PACIFIC BELL 722      
510-229 2 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2006-05-06   
510-229 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-12-03   
510-229 4   515J IP HORIZON LLC 722   2003-10-12   
510-229 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2004-04-08   
510-229 6 OKLECAZV1MD  5562 METROPCS, INC. 722   2004-03-28   
510-229 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-04-17   
510-229 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-01-08   
510-229 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-02-19   
510-277 A   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-277 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-277 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-277 2 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-06-02   
510-277 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-277 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2013-01-15   
510-277 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-06-21   
510-277 6 OKLECAZV1MD  5562 METROPCS, INC. 722   2003-04-26   
510-277 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2003-04-26   
510-277 8 OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722   2024-08-18   
510-277 9   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-03-10   
510-280 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-05-21   
510-280 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 2 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 3 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2007-06-01   
510-280 4 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-08-12   
510-280 5 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2010-09-28   
510-280 6 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
510-280 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-01-21   
510-280 8 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-01-21   
510-280 9 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-01-21   
510-292 A ALBYCA11DS0  9740 PACIFIC BELL 722      
510-292 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-08-15   
510-292 1 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-09-10   
510-292 2 ALBYCA11DS0  9740 PACIFIC BELL 722      
510-292 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-10-03   
510-292 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-06-04   
510-292 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-10-29   
510-292 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-10-29   
510-292 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-10-29   
510-292 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-10-29   
510-292 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-08-15   
510-295 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-295 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-295 1 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-295 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-295 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-08-09   
510-295 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2003-01-10   
510-295 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2003-08-09   
510-295 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-295 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2002-12-14   
510-295 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2002-12-14   
510-295 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2002-12-14   
510-345 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-345 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-14   
510-345 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-14   
510-345 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-14   
510-345 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-03-14   
510-345 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-04-23   
510-345 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2016-04-23   
510-345 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2016-04-15   
510-345 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-03-13   
510-345 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-03-13   
510-345 9 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2016-03-13   
510-356 A BKLYCA01DS0  9740 PACIFIC BELL 722      
510-356 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-14   
510-356 1 BKLYCA01DS0  9740 PACIFIC BELL 722   2007-12-27   
510-356 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-06-03   
510-356 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-03-08   
510-356 4 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2009-04-08   
510-356 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-04-18   
510-356 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2008-04-18   
510-356 7 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2008-05-24   
510-356 8 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2008-10-19   
510-356 9 BKLYCA01DS0  9740 PACIFIC BELL 722   2007-12-27   
510-365 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-365 0 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-06-29   
510-365 1 OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2014-06-29   

<< 1 2 3 4 5 6 7 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.