Local Calling Guide

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NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-355 A Bertram TX BRTRTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-355 0 Bertram TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2014-05-01   
512-355 1 Bertram TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2004-11-14   
512-355 2 Bertram TX BRTRTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-355 3 Bertram TX BRTRTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-355 4 Bertram TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2005-09-30   
512-355 5 Bertram TX AUSTTXGR45Z  624H ONVOY SPECTRUM, LLC 558   2024-10-15   
512-355 6 Bertram TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2013-03-08   
512-355 7 Bertram TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2010-10-31   
512-355 8 Bertram TX AUSXTXZR0MD  793K TWC IP ENABLED SERVICES, LLC 558   2007-03-20   
512-355 9 Bertram TX BRTRTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558   2001-05-29   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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