Local Calling Guide

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

NXX: 454

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-454 A Dallas TX RCSNTXBZRS0  9533 SOUTHWESTERN BELL 552      
972-454 0 Dallas TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-03-07   
972-454 1 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-06-08   
972-454 2 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-454 3 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-454 4 Dallas TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-04-07   
972-454 5 Dallas TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-06-08   
972-454 6 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-454 7 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-454 8 Dallas TX   9533 SOUTHWESTERN BELL 552      
972-454 9 Dallas TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-03-07   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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