Local Calling Guide

Area code/prefix search

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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-428 A Carrollton TX DLLFTXFQDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 552      
972-428 0 Carrollton TX DLLFTXFQDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 552      
972-428 1 Carrollton TX DLLFTXFQDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 552      
972-428 2 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2005-11-30   
972-428 3 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2005-11-30   
972-428 4 Carrollton TX DLLSTXREDS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2009-10-19   
972-428 5 Carrollton TX DLLFTXFQDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 552      
972-428 6 Carrollton TX DLLFTXFQDS1  7516 LEVEL 3 TELECOM OF TEXAS, LLC 552      
972-428 7 Carrollton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-08-29   
972-428 8 Carrollton TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2009-07-23   
972-428 9 Carrollton TX DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2009-07-23   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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