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: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-438 A Wasco CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-438 0 Wasco CA   649C ONVOY, LLC - CA 734      
661-438 1 Wasco CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2010-12-06   
661-438 2 Wasco CA   649C ONVOY, LLC - CA 734   2010-03-08   
661-438 3 Wasco CA   649C ONVOY, LLC - CA 734   2014-01-07   
661-438 4 Wasco CA   7128 BROOKS FIBER COMMUNICATIONS OF CALIFORNIA - CA 734   2005-04-28   
661-438 5 Wasco CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734   2005-07-30   
661-438 6 Wasco CA   5562 METRO PCS, INC. 734   2011-02-07   
661-438 7 Wasco CA   516C AT&T CORP. 734   2011-06-08   
661-438 8 Wasco CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2014-03-27   
661-438 9 Wasco CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2014-09-11   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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