Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 513

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-513 A Irving TX IRNGTXXDDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 0 Irving TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 1 Irving TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 2 Irving TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-513 3 Irving TX   5562 METROPCS, INC. 552   2006-08-28   
972-513 4 Irving TX   5562 METROPCS, INC. 552   2009-03-05   
972-513 5 Irving TX   5562 METROPCS, INC. 552   2006-08-28   
972-513 6 Irving TX   5562 METROPCS, INC. 552   2006-08-28   
972-513 7 Irving TX   5562 METROPCS, INC. 552   2006-08-28   
972-513 8 Irving TX   5562 METROPCS, INC. 552   2009-02-20   
972-513 9 Irving 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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