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: Main-Piedmont DA, CA

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
510-502 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-503 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
510-504 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-08-30   
510-506 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-506 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 7   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-07-30   
510-507 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-507 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-508 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-515 A SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      
510-517 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-520 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-539 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
510-541 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-543 A OKLECAZV1MD  5562 METROPCS, INC. 722      
510-543 0   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-10   
510-543 1   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-10   
510-543 2   649C ONVOY, LLC - CA 722   2013-06-24   
510-543 3   5562 METROPCS, INC. 722      
510-543 4   5562 METROPCS, INC. 722      
510-543 5   5562 METROPCS, INC. 722      
510-543 6   5562 METROPCS, INC. 722      
510-543 7   5562 METROPCS, INC. 722      
510-543 8   5562 METROPCS, INC. 722      
510-543 9   6529 T-MOBILE USA, INC. 722      
510-547 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-550 A   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2002-08-17   
510-550 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 5   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-09-30   
510-550 6   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-03   
510-550 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-550 8   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2006-09-29   
510-550 9   624H ONVOY SPECTRUM, LLC 722   2024-08-18   
510-551 A OKLECAZV1MD  5562 METROPCS, INC. 722      
510-551 0   5562 METROPCS, INC. 722      
510-551 1   5562 METROPCS, INC. 722      
510-551 2   5562 METROPCS, INC. 722      
510-551 3   5562 METROPCS, INC. 722      
510-551 4   5562 METROPCS, INC. 722      
510-551 5   5562 METROPCS, INC. 722      
510-551 6   5562 METROPCS, INC. 722      
510-551 7   5562 METROPCS, INC. 722      
510-551 8   6529 T-MOBILE USA, INC. 722      
510-551 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-07-02   
510-575 A OKLECAZV1MD  5562 METROPCS, INC. 722      
510-575 0   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-10   
510-575 1   5562 METROPCS, INC. 722   2005-03-07   
510-575 2   5562 METROPCS, INC. 722   2005-03-07   
510-575 3   5562 METROPCS, INC. 722   2005-03-07   
510-575 4   5562 METROPCS, INC. 722   2005-03-07   
510-575 5   5562 METROPCS, INC. 722   2005-03-07   
510-575 6   5562 METROPCS, INC. 722   2005-03-07   
510-575 7   5562 METROPCS, INC. 722   2005-03-07   
510-575 8   5562 METROPCS, INC. 722   2005-03-07   
510-575 9   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-02-19   
510-587 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-587 0   9740 PACIFIC BELL 722      
510-587 1   9740 PACIFIC BELL 722      
510-587 2   9740 PACIFIC BELL 722      
510-587 3   9740 PACIFIC BELL 722      
510-587 4   9740 PACIFIC BELL 722      
510-587 5   9740 PACIFIC BELL 722      
510-587 6   9740 PACIFIC BELL 722      
510-587 7   9740 PACIFIC BELL 722      
510-587 8   9740 PACIFIC BELL 722      
510-587 9   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-09-03   
510-588 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-588 0   6529 T-MOBILE USA, INC. 722   2020-09-11   
510-588 1   649C ONVOY, LLC - CA 722      
510-588 2   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-588 3   649C ONVOY, LLC - CA 722      
510-588 4   649C ONVOY, LLC - CA 722      
510-588 5   649C ONVOY, LLC - CA 722      
510-588 6   6529 T-MOBILE USA, INC. 722   2020-09-11   
510-588 7   649C ONVOY, LLC - CA 722      
510-588 8   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2011-12-17   
510-588 9   6529 T-MOBILE USA, INC. 722   2020-09-11   
510-590 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-590 0   6010 NEW CINGULAR WIRELESS PCS, LLC 722      

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

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.