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: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-501 A Bakersfield: South DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-501 0 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-501 1 Bakersfield: South DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-501 2 Bakersfield: South DA CA BKFDCAKTDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734      
661-501 3 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-501 4 Bakersfield: South DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734      
661-501 5 Bakersfield: South DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734      
661-501 6 Bakersfield: South DA CA BKFDCA01WMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 734      
661-501 7 Bakersfield: South DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-501 8 Bakersfield: South DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-501 9 Bakersfield: South DA CA BKFDCAKTDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.