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]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-857 A Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-857 0 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-857 1 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-857 2 Santa Clarita: Newhall-Castaic DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2007-12-09   
661-857 3 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-857 4 Santa Clarita: Newhall-Castaic DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-08-16   
661-857 5 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2006-08-20   
661-857 6 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-857 7 Santa Clarita: Newhall-Castaic DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-04-13   
661-857 8 Santa Clarita: Newhall-Castaic DA CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2006-07-14   
661-857 9 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-858 A Bakersfield: South DA CA BKFDCA15RS0  9740 PACIFIC BELL 734      
661-858 0 Bakersfield: South DA CA BKFDCA19DS0  9740 PACIFIC BELL 734      
661-858 1 Bakersfield: South DA CA BKFDCA15RS0  9740 PACIFIC BELL 734      
661-858 2 Bakersfield: South DA CA BKFDCA15RS0  9740 PACIFIC BELL 734      
661-858 3 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-09-05   
661-858 4 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-09-30   
661-858 5 Bakersfield: South DA CA BKFDCA15RS0  9740 PACIFIC BELL 734      
661-858 6 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-10-20   
661-858 7 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-10-30   
661-858 8 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-11-18   
661-858 9 Bakersfield: South DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2007-08-16   
661-859 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-859 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-859 1 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-859 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-859 3 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2012-05-02   
661-859 4 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2008-09-05   
661-859 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-859 6 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2010-03-06   
661-859 7 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2010-04-09   
661-859 8 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2008-06-02   
661-859 9 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2008-08-02   
661-860 A Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-860 0 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-860 1 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-860 2 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2005-01-07   
661-860 3 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-12-31   
661-860 4 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-12-31   
661-860 5 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-09-09   
661-860 6 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-11-12   
661-860 7 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-11-12   
661-860 8 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-31   
661-860 9 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-31   
661-861 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 1 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 3 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2012-04-02   
661-861 4 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 6 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 7 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 8 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-861 9 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 0 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2011-03-20   
661-862 1 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2020-11-14   
661-862 2 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2020-11-14   
661-862 3 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2020-11-14   
661-862 4 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 6 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 7 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 8 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-862 9 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2006-12-01   
661-863 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-863 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-863 1 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2021-12-21   
661-863 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734   2019-07-07   
661-863 3 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734   2019-07-07   
661-863 4 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734   2019-07-07   
661-863 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734   2019-07-07   
661-863 6 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-863 7 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2006-09-16   
661-863 8 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2006-09-16   
661-863 9 Bakersfield: Main DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2019-09-14   
661-864 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 1 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 3 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 4 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-864 5 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2011-09-19   
661-864 6 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2012-06-06   
661-864 7 Bakersfield: Main DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2010-06-28   
661-864 8 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-04-06   
661-864 9 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-04-06   
661-865 A Bakersfield: Main DA CA BKFDCA12X5X  9262 UTILITY TELECOM GROUP, LLC - CA 734      
661-865 0 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2007-02-09   
661-865 1 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-01-19   
661-865 2 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-01-19   
661-865 3 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-02-14   
661-865 4 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-02-14   
661-865 5 Bakersfield: Main DA CA BKFDCA12X5X  9262 UTILITY TELECOM GROUP, LLC - CA 734   2006-07-22   
661-865 6 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2007-03-09   
661-865 7 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-03-17   
661-865 8 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2007-04-09   
661-865 9 Bakersfield: Main DA CA BKFDCA01X2X  5562 METROPCS, INC. 734   2007-03-31   
661-866 A Bakersfield: Main DA CA BKFDCAKTX6X  965H FRACTEL, LLC 734      

<< 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 >>

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.