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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-418 8 Lancaster CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2012-04-09   
661-418 9 Lancaster CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2012-04-09   
661-419 A Hi Vista CA BLPKCAAFCM0  0051 SHELCOMM 730      
661-420 A Cuyama CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-420 0 Cuyama CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2024-01-05   
661-420 1 Cuyama CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-420 2 Cuyama CA BKFDCAKTX1X  939H COMMIO, LLC 734   2024-01-28   
661-420 3 Cuyama CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2021-08-13   
661-420 4 Cuyama CA BKFDCAKTX6X  965H FRACTEL, LLC 734   2020-07-27   
661-420 6 Cuyama CA BKFDCAKTX1X  939H COMMIO, LLC 734   2021-10-22   
661-420 7 Cuyama CA BKFDCAKTX1X  939H COMMIO, LLC 734   2021-10-22   
661-420 8 Cuyama CA BKFDCAKTX1X  939H COMMIO, LLC 734   2021-10-22   
661-420 9 Cuyama CA BKFDCAKTX1X  939H COMMIO, LLC 734   2021-10-22   
661-421 A Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-421 0 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2016-01-05   
661-421 1 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2016-01-05   
661-421 2 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 3 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 4 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 5 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 6 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 7 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 8 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-421 9 Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-04-23   
661-422 A Palmdale: Leona Valley DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
661-422 0 Palmdale: Leona Valley DA CA   145J TERRA NOVA TELECOM INC. 730   2025-04-16   
661-422 2 Palmdale: Leona Valley DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-422 3 Palmdale: Leona Valley DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-422 5 Palmdale: Leona Valley DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-06-12   
661-422 6 Palmdale: Leona Valley DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2011-06-20   
661-422 7 Palmdale: Leona Valley DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-06-18   
661-422 8 Palmdale: Leona Valley DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2010-10-26   
661-422 9 Palmdale: Leona Valley DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
661-423 A Lancaster CA LNCSCAXFDS0  2319 FRONTIER CALIFORNIA INC. 730      
661-424 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-424 0 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-424 1 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-424 2 Santa Clarita: Saugus Canyon Country DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-11-29   
661-424 3 Santa Clarita: Saugus Canyon Country DA CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-06-17   
661-424 4 Santa Clarita: Saugus Canyon Country DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-26   
661-424 5 Santa Clarita: Saugus Canyon Country DA CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-06-17   
661-424 6 Santa Clarita: Saugus Canyon Country DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-06-21   
661-424 7 Santa Clarita: Saugus Canyon Country DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2008-06-02   
661-424 8 Santa Clarita: Saugus Canyon Country DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-11-29   
661-424 9 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-425 A Santa Clarita: Newhall-Castaic DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
661-425 0 Santa Clarita: Newhall-Castaic DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-18   
661-425 1 Santa Clarita: Newhall-Castaic DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-05-20   
661-425 2 Santa Clarita: Newhall-Castaic DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-08-25   
661-425 3 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2014-11-08   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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