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: 797

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-797 A Lost Hills CA LSHLCAXFRS5  4420 FRONTIER CALIFORNIA INC. 734      
661-797 0 Lost Hills CA   649C ONVOY, LLC - CA 734   2017-04-04   
661-797 1 Lost Hills CA   649C ONVOY, LLC - CA 734   2019-02-22   
661-797 2 Lost Hills CA   4420 FRONTIER CALIFORNIA INC. 734      
661-797 3 Lost Hills CA   649C ONVOY, LLC - CA 734   2019-02-22   
661-797 4 Lost Hills CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734   2005-07-30   
661-797 5 Lost Hills CA   073H TELNYX LLC 734   2018-07-06   
661-797 6 Lost Hills CA   4420 FRONTIER CALIFORNIA INC. 734      
661-797 7 Lost Hills CA   4420 FRONTIER CALIFORNIA INC. 734      
661-797 9 Lost Hills CA   4420 FRONTIER CALIFORNIA INC. 734      

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

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