Local Calling Guide

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

NXX: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-309 A Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 0 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 1 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 2 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 3 Plano TX DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2010-01-11   
972-309 4 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 5 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 6 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 7 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 8 Plano TX ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 9 Plano TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-10-07   

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

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