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 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-552 7 Earlimart CA BKFDCA11XMD  508J CENTURYLINK COMMUNICATIONS, LLC 734   2015-05-05   
661-552 8 Earlimart CA   515J IP HORIZON LLC 734   2022-10-20   
661-552 9 Earlimart CA   515J IP HORIZON LLC 734   2022-10-20   
661-553 A Delano CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-553 0 Delano CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-06-28   
661-553 1 Delano CA BKFDCAKTDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734   2018-12-09   
661-553 2 Delano CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2019-02-15   
661-553 3 Delano CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2018-04-30   
661-553 4 Delano CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2018-04-30   
661-553 5 Delano CA BKFDCA01VMD  5562 METROPCS, INC. 734   2017-08-12   
661-553 6 Delano CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734   2016-07-31   
661-553 7 Delano CA BKFDCAKTOMD  073H TELNYX LLC 734   2017-03-24   
661-553 8 Delano CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2017-04-03   
661-553 9 Delano CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2016-12-16   
661-554 A Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
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   
661-557 A Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-557 0 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-557 1 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2005-11-22   
661-557 2 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2010-01-19   
661-557 3 Arvin CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2008-10-31   
661-557 4 Arvin CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2015-07-10   
661-557 5 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2006-10-27   
661-557 6 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2013-05-18   
661-557 7 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2007-09-28   
661-557 8 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2010-08-16   
661-557 9 Arvin CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2005-11-22   
661-558 A Bakersfield: Main DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734      
661-558 0 Bakersfield: Main DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2016-04-23   
661-558 1 Bakersfield: Main DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2016-04-23   
661-558 2 Bakersfield: Main DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2016-04-23   
661-558 3 Bakersfield: Main DA CA BKFDCA01VMD  5562 METROPCS, INC. 734   2016-06-11   
661-558 4 Bakersfield: Main DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734   2017-07-09   
661-558 5 Bakersfield: Main DA CA BKFDCA01VMD  5562 METROPCS, INC. 734   2016-07-31   
661-558 6 Bakersfield: Main DA CA BKFDCA01VMD  5562 METROPCS, INC. 734   2016-07-31   
661-558 7 Bakersfield: Main DA CA BKFDCA01VMD  6529 T-MOBILE USA, INC. 734   2016-03-28   
661-558 8 Bakersfield: Main DA CA BKFDCA01VMD  5562 METROPCS, INC. 734   2016-03-21   
661-558 9 Bakersfield: Main DA CA BKFDCA01VMD  5562 METROPCS, INC. 734   2016-03-21   
661-560 A Wasco CA BKFDCA11XEX  506J TWILIO INTERNATIONAL, INC. 734      
661-560 0 Wasco CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2022-01-12   

<< 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 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.