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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-499 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-04-09   
972-499 5 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-499 6 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2008-04-25   
972-499 7 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-499 8 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-499 9 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-501 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-502 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 0 DLLTTXID1MD  5562 METROPCS, INC. 552   2012-02-23   
972-502 1 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 2 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 3 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 4 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 5 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 6 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 7 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 8 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-502 9 DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2012-04-06   
972-503 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-503 0 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-503 1 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-503 2 DLLTTXID1MD  5562 METROPCS, INC. 552   2018-05-25   
972-503 3 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-503 4 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-10-18   
972-503 5 DLLTTXID1MD  5562 METROPCS, INC. 552   2019-07-18   
972-503 6 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-07-15   
972-503 7 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-503 8 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-02-15   
972-503 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2018-07-15   
972-506 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-528 A DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-528 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-528 1 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-528 2 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-528 3 DLLSTXRNDS0  9533 SOUTHWESTERN BELL 552      
972-528 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-06-19   
972-528 5 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2011-04-22   
972-528 6   903C ONVOY, LLC - TX 552   2010-04-10   
972-528 7 DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2012-04-06   
972-528 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-528 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-532 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-532 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-532 1 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-532 2 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-532 3 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-532 4 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-532 5 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2009-07-16   
972-532 6 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-532 7 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-532 8 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2004-11-11   
972-532 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-05-22   
972-546 A DLLATX37YMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 552      
972-546 0 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 1 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 2 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 3 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 5 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 6 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-546 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-10-05   
972-546 8   6529 T-MOBILE USA, INC. 552   2025-06-11   
972-546 9 DLLATX37YMD  8489 GLOBAL CROSSING LOCAL SERVICES, INC. - TX 552      
972-556 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 0 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 1 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 2 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 3 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 4 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 5 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-556 6 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 7 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 8 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-556 9 DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-557 A DLLSTXRYDS0  9533 SOUTHWESTERN BELL 552      
972-559 A DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
972-559 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-559 1 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-11-06   
972-559 2 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-11-06   
972-559 3 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-11-06   
972-559 4 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-04-28   
972-559 5 DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
972-559 6 DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
972-559 7 DLLSTXFLDS0  9533 SOUTHWESTERN BELL 552      
972-559 8 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-10-05   
972-559 9 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-17   
972-560 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-566 A DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-572 A DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 0 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 1 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 2 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 3 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 4 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 5 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 6   6529 T-MOBILE USA, INC. 552   2025-06-11   
972-572 7 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 8 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-572 9 DLLSTXDVDS0  9533 SOUTHWESTERN BELL 552      
972-581 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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