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: 500

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-500 A Taft CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-500 0 Taft CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2023-11-05   
661-500 1 Taft CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2025-06-19   
661-500 2 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2025-09-05   
661-500 9 Taft CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2023-11-13   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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