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.

NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-250 0 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-250 1 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-250 2 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-16   
510-250 3 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-05-16   
510-250 4 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-08-11   
510-250 5 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-250 6 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-03-25   
510-250 7 Oakland: Main-Piedmont DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-12-04   
510-250 8 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-03-25   
510-250 9 Oakland: Main-Piedmont DA CA SNFCCA01XGX  516C AT&T CORP. 722   2011-09-30   
510-251 A Oakland: Main-Piedmont DA CA OKLDCA03DS2  9740 PACIFIC BELL 722      
510-252 A Fremont-Newark: Oliver DA CA FRMTCA12DS0  9740 PACIFIC BELL 722      
510-253 A Richmond CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-253 0 Richmond CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-02-12   
510-253 1 Richmond CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-253 2 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-03-14   
510-253 3 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2004-05-21   
510-253 4 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2008-11-24   
510-253 5 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-02-08   
510-253 6 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-02-08   
510-253 7 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-02-08   
510-253 8 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-02-08   
510-253 9 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-02-08   
510-254 A Oakland: Alameda DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-254 0 Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-05-19   
510-254 1 Oakland: Alameda DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2012-07-23   
510-254 2 Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-05-19   
510-254 3 Oakland: Alameda DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-08-02   
510-254 4 Oakland: Alameda DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-04-23   
510-254 5 Oakland: Alameda DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-11-12   
510-254 6 Oakland: Alameda DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-04-15   
510-254 7 Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-05-19   
510-254 8 Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-05-19   
510-254 9 Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-05-19   
510-255 A Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-255 0 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-27   
510-255 1 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-27   
510-255 2 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-27   
510-255 3 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-06-27   
510-255 4 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
510-255 5 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
510-255 6 Richmond CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-28   
510-255 7 Richmond CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2011-10-03   
510-255 8 Richmond CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2012-09-14   
510-255 9 Richmond CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2012-01-05   
510-256 A Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-256 0 Crockett CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-04-16   
510-256 1 Crockett CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2010-08-09   
510-256 2 Crockett CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-03-28   
510-256 3 Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-04-29   
510-256 4 Crockett CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2009-03-20   
510-256 5 Crockett CA   515J IP HORIZON LLC 722   2002-10-12   
510-256 6 Crockett CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2015-06-17   
510-256 7 Crockett CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-25   
510-256 8 Crockett CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-25   
510-256 9 Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-28   
510-257 A Fremont-Newark: Oliver DA CA SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
510-257 0 Fremont-Newark: Oliver DA CA SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
510-257 1 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2007-09-07   
510-257 2 Fremont-Newark: Oliver DA CA   515J IP HORIZON LLC 722   2003-10-12   
510-257 3 Fremont-Newark: Oliver DA CA   515J IP HORIZON LLC 722   2003-10-12   
510-257 4 Fremont-Newark: Oliver DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-11-29   
510-257 5 Fremont-Newark: Oliver DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-09-15   
510-257 6 Fremont-Newark: Oliver DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-09-15   
510-257 7 Fremont-Newark: Oliver DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-09-15   
510-257 8 Fremont-Newark: Oliver DA CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2005-09-15   
510-257 9 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2014-09-25   
510-258 A Hayward CA SNLNCA11DS0  9740 PACIFIC BELL 722      
510-258 0 Hayward CA SNLNCA11DS0  9740 PACIFIC BELL 722      
510-258 1 Hayward CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-02-03   
510-258 2 Hayward CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-02-03   
510-258 3 Hayward CA OKLECAZV1MD  5562 METROPCS, INC. 722   2004-05-14   
510-258 4 Hayward CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-04-08   
510-258 5 Hayward CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-04-08   
510-258 6 Hayward CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-04-08   
510-258 7 Hayward CA OKLECAZV1MD  5562 METROPCS, INC. 722   2003-04-08   
510-258 8 Hayward CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-02   
510-258 9 Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-08-20   
510-259 A Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 0 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 1 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 2 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 3 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 4 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 5 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 6 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 7 Hayward CA HYWRCA11DS0  9740 PACIFIC BELL 722      
510-259 8 Hayward CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-10-02   
510-259 9 Hayward CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2010-10-25   
510-260 A Richmond CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
510-260 0 Richmond CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
510-260 1 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2008-12-07   
510-260 2 Richmond CA   515J IP HORIZON LLC 722   2002-10-12   
510-260 3 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2011-07-11   
510-260 4 Richmond CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-11   
510-260 5 Richmond CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-11   
510-260 6 Richmond CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-11   
510-260 7 Richmond CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-11   
510-260 8 Richmond CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2003-12-01   
510-260 9 Richmond CA OKLECAZV1MD  5562 METROPCS, INC. 722   2006-08-20   

<< 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.