Local Calling Guide

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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-996 5 DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2008-06-29   
972-996 6 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-10-30   
972-996 7 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-05-06   
972-996 8 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-996 9 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 A DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 0 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 1 DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
972-997 2 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 3 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 4 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 5 DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
972-997 6 DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
972-997 7 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 8 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-997 9 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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