Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-770 A Taft CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-770 0 Taft CA   981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-770 1 Taft CA   6529 T-MOBILE USA, INC. 734   2021-02-13   
661-770 2 Taft CA   939H COMMIO, LLC 734   2022-07-22   
661-770 3 Taft CA   490J DISH WIRELESS, LLC 734   2023-11-13   
661-770 4 Taft CA   145J TERRA NOVA TELECOM INC. 734   2022-11-03   
661-770 5 Taft CA   6529 T-MOBILE USA, INC. 734   2021-04-24   
661-770 6 Taft CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2014-04-15   
661-770 7 Taft CA   6529 T-MOBILE USA, INC. 734   2007-06-04   
661-770 8 Taft CA   6529 T-MOBILE USA, INC. 734   2020-08-22   
661-770 9 Taft CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2020-04-09   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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