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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-225 7 Palmdale: Palmdale DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-11   
661-225 8 Palmdale: Palmdale DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-11-17   
661-225 9 Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-226 A Arvin CA BKFDCA11EMD  6906 AMERICAN MESSAGING SERVICES, LLC 734      
661-227 A Palmdale: Palmdale DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-227 0 Palmdale: Palmdale DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2016-12-01   
661-227 1 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-23   
661-227 2 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-23   
661-227 3 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-23   
661-227 4 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-02   
661-227 5 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-02   
661-227 6 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-02   
661-227 7 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-02   
661-227 8 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-02   
661-227 9 Palmdale: Palmdale DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2016-12-01   
661-228 A Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-228 0 Hi Vista CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-11-22   
661-228 1 Hi Vista CA   515J IP HORIZON LLC 730      
661-228 2 Hi Vista CA   515J IP HORIZON LLC 730      
661-228 3 Hi Vista CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-03-04   
661-228 4 Hi Vista CA   515J IP HORIZON LLC 730      
661-228 5 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2012-12-30   
661-228 6 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-03-08   
661-228 7 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-03-27   
661-228 8 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-04-05   
661-228 9 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-04-05   
661-229 A Delano CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-229 0 Delano CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2009-10-03   
661-229 1 Delano CA   515J IP HORIZON LLC 734      
661-229 2 Delano CA   515J IP HORIZON LLC 734      
661-229 3 Delano CA BKFDCA01X2X  5562 METROPCS, INC. 734   2009-10-18   
661-229 4 Delano CA   515J IP HORIZON LLC 734      
661-229 5 Delano CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2003-06-08   
661-229 6 Delano CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2005-08-20   
661-229 7 Delano CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2005-03-31   
661-229 8 Delano CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2006-05-13   
661-229 9 Delano CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2006-07-17   
661-230 A Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-230 0 Edwards CA   515J IP HORIZON LLC 734      
661-230 1 Edwards CA   515J IP HORIZON LLC 734      
661-230 2 Edwards CA   515J IP HORIZON LLC 734      
661-230 3 Edwards CA BKFDCAJADS0  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 734   2010-08-02   
661-230 4 Edwards CA   649C ONVOY, LLC - CA 734   2021-12-25   
661-230 5 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-08-29   
661-230 6 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2011-06-24   
661-230 7 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2012-12-28   
661-230 8 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-02-21   
661-230 9 Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-09-24   
661-231 A Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-231 0 Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-08-29   
661-231 1 Lebec CA   515J IP HORIZON LLC 734      
661-231 2 Lebec CA   515J IP HORIZON LLC 734      
661-231 3 Lebec CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2014-01-05   
661-231 4 Lebec CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2021-12-08   
661-231 5 Lebec CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2004-10-01   
661-231 6 Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-03-21   
661-231 7 Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-08-17   
661-231 8 Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-02-21   
661-231 9 Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-09-24   
661-232 A Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-232 0 Mojave CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-06-07   
661-232 1 Mojave CA   515J IP HORIZON LLC 734      
661-232 2 Mojave CA   515J IP HORIZON LLC 734      
661-232 3 Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2021-08-24   
661-232 4 Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2021-08-24   
661-232 5 Mojave CA BKFDCA01X0X  516C AT&T CORP. 734   2011-06-08   
661-232 6 Mojave CA BKFDCA01WMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 734   2007-02-02   
661-232 7 Mojave CA BKFDCA11XMD  508J CENTURYLINK COMMUNICATIONS, LLC 734   2015-05-05   
661-232 8 Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2009-06-11   
661-232 9 Mojave CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-09-24   
661-233 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-233 0 Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-233 1 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-10-14   
661-233 2 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-10-16   
661-233 3 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-24   
661-233 4 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-24   
661-233 5 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-24   
661-233 6 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-10-16   
661-233 7 Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-08-24   
661-233 8 Palmdale: Palmdale DA CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2008-05-04   
661-233 9 Palmdale: Palmdale DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2008-06-06   
661-234 A Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
661-234 0 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2015-05-01   
661-234 1 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2015-05-01   
661-234 2 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2015-05-01   
661-234 3 Palmdale: Palmdale DA CA ANHMCA01XEY  516C AT&T CORP. 730   2015-07-15   
661-234 4 Palmdale: Palmdale DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-08-20   
661-234 5 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2018-12-30   
661-234 6 Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2015-08-11   
661-234 7 Palmdale: Palmdale DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-08-20   
661-234 8 Palmdale: Palmdale DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-08-20   
661-234 9 Palmdale: Palmdale DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-08-20   
661-235 A Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-235 0 Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-09-19   
661-235 1 Rosamond CA   515J IP HORIZON LLC 734      
661-235 2 Rosamond CA   515J IP HORIZON LLC 734      
661-235 3 Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-03-04   
661-235 4 Rosamond CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2021-12-08   
661-235 5 Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-03-27   
661-235 6 Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-02-21   

<< 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 >>

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.