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: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-957 A Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 0 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 1 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 2 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 3 Irving TX DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2007-07-25   
972-957 4 Irving TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-957 5 Irving TX IRNGTXXBXTY  903C ONVOY, LLC - TX 552   2023-01-15   
972-957 6 Irving TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-03-25   
972-957 7 Irving TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-03-21   
972-957 8 Irving TX IRNGTXXBXQY  624H ONVOY SPECTRUM, LLC 552   2024-12-12   
972-957 9 Irving TX DLLTTX01DMD  5562 METROPCS, INC. 552   2019-07-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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