Local Calling Guide

Area code/prefix search

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NPA: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-378 A Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
657-378 0 Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-378 1 Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-378 2 Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-378 3 Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-378 4 Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-378 5 Fullerton CA   899D METROPCS NETWORKS, LLC 730   2012-08-09   
657-378 6 Fullerton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
657-378 7 Fullerton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
657-378 8 Fullerton CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-04-11   
657-378 9 Fullerton CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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