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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-725 8   903C ONVOY, LLC - TX 552   2010-11-03   
972-725 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-726 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-728 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 0   5562 METROPCS, INC. 552   2012-02-23   
972-729 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-729 8   903C ONVOY, LLC - TX 552   2010-11-03   
972-729 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2012-09-10   
972-732 A DLLSTXREDS0  9533 SOUTHWESTERN BELL 552      
972-733 A DLLSTXREDS0  9533 SOUTHWESTERN BELL 552      
972-733 0   9533 SOUTHWESTERN BELL 552      
972-733 1   9533 SOUTHWESTERN BELL 552      
972-733 2   9533 SOUTHWESTERN BELL 552      
972-733 3   9533 SOUTHWESTERN BELL 552      
972-733 4   9533 SOUTHWESTERN BELL 552      
972-733 5   9533 SOUTHWESTERN BELL 552      
972-733 6   9533 SOUTHWESTERN BELL 552      
972-733 7   9533 SOUTHWESTERN BELL 552      
972-733 8   145J TERRA NOVA TELECOM INC. 552   2021-01-30   
972-733 9   9533 SOUTHWESTERN BELL 552      
972-735 A DLLSTXREDS0  9533 SOUTHWESTERN BELL 552      
972-738 A DLLSTXREDS0  9533 SOUTHWESTERN BELL 552      
972-738 0   9533 SOUTHWESTERN BELL 552      
972-738 1   903C ONVOY, LLC - TX 552   2010-11-03   
972-738 2   9533 SOUTHWESTERN BELL 552      
972-738 3   9533 SOUTHWESTERN BELL 552      
972-738 4   9533 SOUTHWESTERN BELL 552      
972-738 5   9533 SOUTHWESTERN BELL 552      
972-738 6   9533 SOUTHWESTERN BELL 552      
972-738 7   9533 SOUTHWESTERN BELL 552      
972-738 8   9533 SOUTHWESTERN BELL 552      
972-738 9   9533 SOUTHWESTERN BELL 552      
972-739 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 4   6529 T-MOBILE USA, INC. 552   2025-06-19   
972-739 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-739 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

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

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