Local Calling Guide

Area code/prefix search

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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-621 A Santa Clarita: Saugus Canyon Country DA CA   899D METROPCS NETWORKS, LLC 730      
661-621 0 Santa Clarita: Saugus Canyon Country DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-04-13   
661-621 1 Santa Clarita: Saugus Canyon Country DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2007-09-17   
661-621 2 Santa Clarita: Saugus Canyon Country DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-02   
661-621 3 Santa Clarita: Saugus Canyon Country DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-02   
661-621 4 Santa Clarita: Saugus Canyon Country DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2008-07-11   
661-621 5 Santa Clarita: Saugus Canyon Country DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2008-07-11   
661-621 6 Santa Clarita: Saugus Canyon Country DA CA   829J PAETEC ITEL, LLC 730   2009-05-04   
661-621 7 Santa Clarita: Saugus Canyon Country DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2006-03-12   
661-621 8 Santa Clarita: Saugus Canyon Country DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-10-07   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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