Local Calling Guide

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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
661-627 3 Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-07-22   
661-627 4 Santa Clarita: Newhall-Castaic DA CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
661-627 5 Santa Clarita: Newhall-Castaic DA CA LSANCAJWJMD  516J TON80 COMMUNICATIONS, LLC 730   2021-08-31   
661-627 6 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-05-07   
661-627 7 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-05-07   
661-627 8 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-04-12   
661-627 9 Santa Clarita: Newhall-Castaic DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-04-12   
661-629 A Bakersfield: North DA CA BKFDCAKTX1X  939H COMMIO, LLC 734   2024-03-03   
661-629 0 Bakersfield: North DA CA BKFDCAKTX1X  939H COMMIO, LLC 734   2024-03-03   
661-629 1 Bakersfield: North DA CA BKFDCAKTX1X  939H COMMIO, LLC 734   2024-03-03   
661-629 2 Bakersfield: North DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-01-17   
661-629 3 Bakersfield: North DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-01-17   
661-629 4 Bakersfield: North DA CA BKFDCAKTXXX  490J BOOST SUBSCRIBERCO L.L.C. 734   2024-06-14   
661-629 5 Bakersfield: North DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2024-07-07   
661-629 6 Bakersfield: North DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2024-07-07   
661-629 7 Bakersfield: North DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2024-07-27   
661-629 8 Bakersfield: North DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2026-05-30   
661-629 9 Bakersfield: North DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-07-17   
661-630 A Shafter CA BKFECAND0MD  045L BHN IP ENABLED SERVICES, LLC 734      
661-630 0 Shafter CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2021-07-22   
661-630 1 Shafter CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2021-07-22   
661-630 2 Shafter CA BKFECAND0MD  045L BHN IP ENABLED SERVICES, LLC 734   2017-09-24   
661-630 3 Shafter CA BKFDCAJADS0  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 734   2005-04-28   
661-630 4 Shafter CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734   2005-07-30   
661-630 5 Shafter CA BKFECAND0MD  045L BHN IP ENABLED SERVICES, LLC 734   2007-07-26   
661-630 6 Shafter CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2020-01-11   
661-630 7 Shafter CA BKFDCA12XRX  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 734   2007-09-03   
661-630 8 Shafter CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2017-02-10   
661-630 9 Shafter CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734   2015-03-25   
661-631 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 1 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 3 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 4 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 6 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2005-07-03   
661-632 7 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 8 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-632 9 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 A Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 0 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 1 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 2 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 3 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 4 Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2009-10-24   
661-633 5 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 6 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      
661-633 7 Bakersfield: Main DA CA BKFDCA12DS0  9740 PACIFIC BELL 734      

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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