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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-455 A Glennville CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-455 0 Glennville CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-455 1 Glennville CA   939H COMMIO, LLC 734   2022-11-10   
661-455 4 Glennville CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-455 6 Glennville CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-08-29   
661-455 7 Glennville CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-07-05   
661-455 8 Glennville CA   649C ONVOY, LLC - CA 734   2021-07-22   
661-455 9 Glennville CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734   2016-03-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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