Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-556 A Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-556 0 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2014-05-05   
661-556 1 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2014-05-05   
661-556 2 Bakersfield: South DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2014-06-26   
661-556 3 Bakersfield: South DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2014-06-26   
661-556 4 Bakersfield: South DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2014-05-08   
661-556 5 Bakersfield: South DA CA BKFDCA01X0X  516C AT&T CORP. 734   2014-05-08   
661-556 6 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2014-05-17   
661-556 7 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2014-07-17   
661-556 8 Bakersfield: South DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-05-09   
661-556 9 Bakersfield: South DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-05-09   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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