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.
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Switch: BKFDCA01X2X

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-912 7 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2006-12-16   
661-912 8 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2006-12-16   
661-922 0 Delano CA 6529 T-MOBILE USA, INC. 734   2021-03-23   
661-932 0 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2004-12-13   
661-932 1 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2005-01-17   
661-932 2 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2005-02-04   
661-932 3 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2005-05-08   
661-932 4 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2005-06-23   
661-932 5 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2006-12-16   
661-932 6 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2007-02-23   
661-932 7 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2008-11-23   
661-932 8 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2004-05-31   
661-934 0 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-06-11   
661-934 1 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-06-11   
661-934 2 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-06-11   
661-934 3 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-06-11   
661-934 7 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-07-29   
661-934 8 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-07-29   
661-934 9 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-07-29   
661-955 0 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-03-08   
661-955 1 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-03-08   
661-955 2 Arvin CA 6529 T-MOBILE USA, INC. 734   2021-03-08   
661-978 A Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 0 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 1 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 2 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 3 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 4 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 5 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 6 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 7 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 8 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-978 9 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 A Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 0 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 1 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 2 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 3 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 5 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 6 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 7 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 8 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-979 9 Bakersfield: Main DA CA 5562 METROPCS, INC. 734      
661-996 A Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2024-03-28   
661-996 9 Bakersfield: Main DA CA 6529 T-MOBILE USA, INC. 734   2024-03-28   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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