Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX: 216

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-216 A Placentia CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
657-216 0 Placentia CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-03   
657-216 1 Placentia CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-03   
657-216 2 Placentia CA   793K TWC IP ENABLED SERVICES, LLC 730   2012-04-06   
657-216 3 Placentia CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-12-24   
657-216 4 Placentia CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-07-15   
657-216 5 Placentia CA   829J PAETEC ITEL, LLC 730   2011-07-25   
657-216 6 Placentia CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-31   
657-216 7 Placentia CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-08-28   
657-216 8 Placentia CA LSANCAJWHMD  145J TERRA NOVA TELECOM INC. 730   2024-11-26   
657-216 9 Placentia CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-31   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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