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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-850 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-10-12   
972-850 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-21   
972-850 9 RCSNTXHVBMD  516C AT&T CORP. 552   2011-03-21   
972-851 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 0 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 1 DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2021-12-19   
972-851 2 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 3 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 4 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 5 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 6 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 7 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 8 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-851 9 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-852 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-855 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 0 DLLTTXID1MD  5562 METROPCS, INC. 552   2012-02-23   
972-855 1 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 2 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 3 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 4 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 5 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 6 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-855 7 DLLTTXID1MD  5562 METROPCS, INC. 552   2012-02-23   
972-855 8 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-21   
972-855 9 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-856 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-856 0   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 1 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-856 2 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-856 3   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 4 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-856 5   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 6   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 7   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 8   6529 T-MOBILE USA, INC. 552   2025-05-21   
972-856 9 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-857 A DLLSTXFBRS2  9533 SOUTHWESTERN BELL 552      
972-858 A DLLSTXADRS3  9533 SOUTHWESTERN BELL 552      
972-860 A DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 0 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 1 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 2 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 3 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 4 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 5 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 6 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 7 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 8 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-860 9 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2009-02-11   
972-861 A DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-861 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-12-30   
972-861 1 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-861 2 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2013-03-07   
972-861 3 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 4 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 5 DLLSTX97DS8  8833 LOGIX COMMUNICATIONS CORPORATION - TX 552   2010-01-21   
972-861 6 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 7 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-861 8 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2010-02-16   
972-863 A DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-863 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-12-30   
972-863 1 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-04-28   
972-863 2 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-04-28   
972-863 3 RCSNTXHVBMD  516C AT&T CORP. 552   2009-11-13   
972-863 4 DLLSTXREDS0  9533 SOUTHWESTERN BELL 552   2009-06-07   
972-863 5 DLLSTXREDS0  9533 SOUTHWESTERN BELL 552   2009-06-07   
972-863 6 DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
972-863 7 RCSNTXHVBMD  516C AT&T CORP. 552   2009-06-25   
972-863 8 RCSNTXHVBMD  516C AT&T CORP. 552   2009-12-29   
972-863 9 RCSNTXHVBMD  516C AT&T CORP. 552   2009-12-29   
972-865 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-865 0 FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-865 1 FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-865 2 FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-865 3 FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-865 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2010-12-13   
972-865 5 DLLTTXID1MD  5562 METROPCS, INC. 552   2010-09-20   
972-865 6 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2010-12-13   
972-865 7 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2010-12-13   
972-865 8 DLLSTXHM0MD  829J PAETEC ITEL, LLC 552   2012-04-13   
972-866 A DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 0 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 1 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 2 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 3 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 4 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-15   
972-866 5 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 6 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 7 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 8 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-866 9 DLLSTXADDS0  9533 SOUTHWESTERN BELL 552      
972-868 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-869 A DLLSTXNODS0  9533 SOUTHWESTERN BELL 552      
972-882 A DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      
972-882 0 DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      
972-882 1 DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      
972-882 2 DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      
972-882 3 DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      
972-882 4 DLLSTXMSDS0  9533 SOUTHWESTERN BELL 552      

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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