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
510-390 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-390 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-390 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-390 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-390 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-390 7   649C ONVOY, LLC - CA 722   2016-01-13   
510-390 8   649C ONVOY, LLC - CA 722   2016-02-15   
510-390 9   649C ONVOY, LLC - CA 722   2016-02-15   
510-393 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-393 0   6529 T-MOBILE USA, INC. 722      
510-393 1   6529 T-MOBILE USA, INC. 722      
510-393 2   6529 T-MOBILE USA, INC. 722      
510-393 3   6529 T-MOBILE USA, INC. 722      
510-393 4   6529 T-MOBILE USA, INC. 722      
510-393 5   6529 T-MOBILE USA, INC. 722      
510-393 6   6529 T-MOBILE USA, INC. 722      
510-393 7   6529 T-MOBILE USA, INC. 722      
510-393 8   6529 T-MOBILE USA, INC. 722      
510-393 9   6529 T-MOBILE USA, INC. 722      
510-406 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 5   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 7   649C ONVOY, LLC - CA 722   2008-12-03   
510-406 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-406 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-407 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-409 A SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-410 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-414 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-418 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-419 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-419 0   9740 PACIFIC BELL 722      
510-419 1   9740 PACIFIC BELL 722      
510-419 2   9740 PACIFIC BELL 722      
510-419 3   9740 PACIFIC BELL 722      
510-419 4   9740 PACIFIC BELL 722      
510-419 5   9740 PACIFIC BELL 722      
510-419 6   9740 PACIFIC BELL 722      
510-419 7   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2020-07-13   
510-419 8   9740 PACIFIC BELL 722      
510-419 9   5562 METROPCS, INC. 722   2020-10-23   
510-420 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-421 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
510-428 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-433 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-433 0   9740 PACIFIC BELL 722      
510-433 1   9740 PACIFIC BELL 722      
510-433 2   9740 PACIFIC BELL 722      
510-433 3   9740 PACIFIC BELL 722      
510-433 4   9740 PACIFIC BELL 722      
510-433 5   9740 PACIFIC BELL 722      
510-433 6   9740 PACIFIC BELL 722      
510-433 7   9740 PACIFIC BELL 722      
510-433 8   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2011-08-28   
510-433 9   9740 PACIFIC BELL 722      
510-435 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-435 0   6529 T-MOBILE USA, INC. 722      
510-435 1   6529 T-MOBILE USA, INC. 722      
510-435 2   6529 T-MOBILE USA, INC. 722      
510-435 3   6529 T-MOBILE USA, INC. 722      
510-435 4   6529 T-MOBILE USA, INC. 722      
510-435 5   6529 T-MOBILE USA, INC. 722      
510-435 6   6529 T-MOBILE USA, INC. 722      
510-435 7   6529 T-MOBILE USA, INC. 722      
510-435 8   6529 T-MOBILE USA, INC. 722      
510-435 9   6529 T-MOBILE USA, INC. 722      
510-442 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
510-444 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-444 0   9740 PACIFIC BELL 722      
510-444 1   9740 PACIFIC BELL 722      
510-444 2   9740 PACIFIC BELL 722      
510-444 3   9740 PACIFIC BELL 722      
510-444 4   9740 PACIFIC BELL 722      
510-444 5   9740 PACIFIC BELL 722      
510-444 6   9740 PACIFIC BELL 722      
510-444 7   9740 PACIFIC BELL 722      
510-444 8   9740 PACIFIC BELL 722      
510-444 9   5562 METROPCS, INC. 722   2020-10-23   
510-446 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-446 0   9740 PACIFIC BELL 722      
510-446 1   9740 PACIFIC BELL 722      
510-446 2   9740 PACIFIC BELL 722      
510-446 3   9740 PACIFIC BELL 722      
510-446 4   9740 PACIFIC BELL 722      
510-446 5   9740 PACIFIC BELL 722      
510-446 6   9740 PACIFIC BELL 722      
510-446 7   9740 PACIFIC BELL 722      
510-446 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2008-05-03   
510-446 9   9740 PACIFIC BELL 722      
510-448 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
510-450 A OKLDCA11DS0  9740 PACIFIC BELL 722      
510-451 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-452 A OKLDCA03DS2  9740 PACIFIC BELL 722      
510-452 0   9740 PACIFIC BELL 722      
510-452 1   9740 PACIFIC BELL 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: VoIP.ms

Like this site? We accept donations via PayPal.