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Plano, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-265 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 0   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 7   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2007-04-27   
972-265 8   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
972-265 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-02-21   
972-271 A GRLDTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-272 A GRLDTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-276 A GRLDTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-278 A GRLDTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-295 A WYLITXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-295 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2019-01-10   
972-295 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-295 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-295 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-295 4   6529 T-MOBILE USA, INC. 552   2025-06-01   
972-295 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-295 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2006-08-24   
972-295 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2006-11-10   
972-295 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-09-28   
972-295 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2010-11-20   
972-303 A GRLDTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 6   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 7   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-303 8   903C ONVOY, LLC - TX 552   2009-02-04   
972-303 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-309 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 0   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 1   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 2   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2010-01-11   
972-309 4   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 5   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 6   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 7   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 8   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-309 9   903C ONVOY, LLC - TX 552   2008-10-07   
972-312 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-312 0   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-312 1   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-312 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2007-11-11   
972-312 3   624H ONVOY SPECTRUM, LLC 552   2021-12-17   
972-312 4   624H ONVOY SPECTRUM, LLC 552   2021-12-17   
972-312 5   624H ONVOY SPECTRUM, LLC 552   2021-12-17   
972-312 6   624H ONVOY SPECTRUM, LLC 552   2021-12-17   
972-312 7   624H ONVOY SPECTRUM, LLC 552   2021-12-17   
972-312 8   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-312 9   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-372 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-372 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2011-01-12   
972-372 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-372 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2007-07-31   
972-372 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-372 4   004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-11-18   
972-372 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-372 6   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2010-12-18   
972-372 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-372 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-372 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-02-24   
972-378 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 A PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 6   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-379 7   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-02-24   
972-379 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-02-24   
972-379 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-02-24   
972-384 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-398 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-403 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-09-28   
972-403 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-11-11   
972-403 7   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-403 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-412 A RWLTTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-414 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-422 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-423 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-424 A PLANTXXADS0  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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