Local Calling Guide

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

NXX: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-457 A Lost Hills CA BKFDCAKTX5X  145J TERRA NOVA TELECOM INC. 734      
661-457 0 Lost Hills CA   624H ONVOY SPECTRUM, LLC 734   2024-02-01   
661-457 1 Lost Hills CA   145J TERRA NOVA TELECOM INC. 734   2021-10-02   
661-457 2 Lost Hills CA   145J TERRA NOVA TELECOM INC. 734   2024-05-10   
661-457 5 Lost Hills CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2015-09-24   
661-457 6 Lost Hills CA   508J CENTURYLINK COMMUNICATIONS, LLC 734   2015-05-05   
661-457 8 Lost Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 734   2020-11-09   
661-457 9 Lost Hills CA   649C ONVOY, LLC - CA 734   2021-07-22   

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

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