Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 214 [Rate centres in NPA 214] [Dial plan for NPA 214]

NXX: 427

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
214-427 A Plano TX PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
214-427 0 Plano TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-07-21   
214-427 1 Plano TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
214-427 2 Plano TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2004-06-30   
214-427 3 Plano TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2004-06-30   
214-427 4 Plano TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-07-21   
214-427 5 Plano TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-07-21   
214-427 6 Plano TX   903C ONVOY, LLC - TX 552   2021-08-13   
214-427 7 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2021-09-13   
214-427 8 Plano TX   903C ONVOY, LLC - TX 552   2009-02-04   
214-427 9 Plano TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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