Local Calling Guide

Area code/prefix search

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

NXX: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-275 A Placentia CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
657-275 0 Placentia CA   515J IP HORIZON LLC 730   2015-10-31   
657-275 1 Placentia CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-02-26   
657-275 2 Placentia CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-09-25   
657-275 3 Placentia CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-29   
657-275 4 Placentia CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2016-12-08   
657-275 5 Placentia CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2016-12-08   
657-275 6 Placentia CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2015-08-28   
657-275 7 Placentia CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2015-08-28   
657-275 8 Placentia CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-02-26   
657-275 9 Placentia CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-08-31   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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