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Plano, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-596 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-599 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-604 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-605 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 3   903C ONVOY, LLC - TX 552   2008-02-20   
972-608 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 6   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-10-06   
972-608 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-608 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-612 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-618 A PLANTXXKDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-633 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-665 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-665 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-05-11   
972-665 6   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 7   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-06-24   
972-665 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-673 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 0   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 1   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 2   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 3   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 4   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 5   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 6   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 7   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 8   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-673 9   624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-675 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 6   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-01-12   
972-675 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-675 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-688 A DLLSTX97XCX  321J HD CARRIER LLC 552      
972-688 0   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 1   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 2   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 3   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 4   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 5   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 6   903C ONVOY, LLC - TX 552   2022-01-14   
972-688 7   624H ONVOY SPECTRUM, LLC 552   2022-01-22   
972-688 8   321J HD CARRIER LLC 552   2021-12-26   
972-688 9   321J HD CARRIER LLC 552   2021-12-26   
972-696 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-10-24   
972-696 1   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-696 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-696 6   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-02-15   
972-696 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-06-06   
972-696 8   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-12-16   
972-696 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-02-21   
972-758 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-767 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-767 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-767 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-12-19   
972-767 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-767 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-12-19   
972-767 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-12-19   
972-767 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-12-19   
972-767 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-09-19   
972-767 7   903C ONVOY, LLC - TX 552   2007-12-15   
972-767 8   903C ONVOY, LLC - TX 552   2008-05-23   
972-767 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-02-21   
972-769 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2008-11-29   
972-769 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-07-05   
972-769 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-07-05   
972-769 7   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-769 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-781 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-781 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-781 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-781 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

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

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