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: 623

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-623 A Taft CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 0 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 1 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 2 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 3 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 4 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 5 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 6 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-623 7 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2007-10-21   
661-623 8 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2020-09-29   
661-623 9 Taft CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2014-02-22   

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

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