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: 573

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-573 A Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552      
972-573 0 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 1 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 2 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 3 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 4 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 5 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 6 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 7 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 8 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   
972-573 9 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2005-11-20   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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