Local Calling Guide

Area code/prefix search

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NPA: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-721 A Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 0 Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 1 Northridge CA SIMICACNGT1  899D METROPCS NETWORKS, LLC 730   2011-10-15   
818-721 2 Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 3 Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 4 Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 5 Northridge CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
818-721 6 Northridge CA SIMICACNGT1  899D METROPCS NETWORKS, LLC 730   2010-04-10   
818-721 7 Northridge CA SIMICACNGT1  899D METROPCS NETWORKS, LLC 730   2018-10-07   
818-721 8 Northridge CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-27   
818-721 9 Northridge CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-05-04   

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

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