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Plano, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-429 A WYLITXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-431 A FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 0   197D VONAGE AMERICA LLC 552   2023-10-18   
972-431 1   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 2   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 3   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 4   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 5   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 6   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 7   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 8   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-431 9   508J CENTURYLINK COMMUNICATIONS, LLC 552      
972-442 A WYLITXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-461 A PLANTXXADS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-463 A RWLTTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-468 A PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-468 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-468 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-468 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-468 3   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2009-01-16   
972-468 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-468 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-02-23   
972-468 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-10-08   
972-468 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2007-02-23   
972-468 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-468 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-11-07   
972-473 A PLANTXXDDS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-475 A RWLTTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-477 A   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-477 1   6529 T-MOBILE USA, INC. 552   2025-05-16   
972-477 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 8   732J NUSO, LLC 552   2025-05-09   
972-477 9   732J NUSO, LLC 552   2025-05-09   
972-485 A GRLDTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-487 A GRLDTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-491 A PLANTXXKDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-494 A GRLDTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-495 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-496 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-509 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-516 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-517 A PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-519 A PLANTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-520 A FTWOTXEDX1Z  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-520 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-05   
972-520 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2018-06-28   
972-520 7   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-520 8   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-520 9   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2018-06-04   
972-526 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-526 0   903C ONVOY, LLC - TX 552   2007-03-21   
972-526 1   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 2   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 3   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 4   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 5   903C ONVOY, LLC - TX 552   2007-03-21   
972-526 6   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 7   903C ONVOY, LLC - TX 552   2007-03-21   
972-526 8   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-526 9   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-11-22   
972-527 A PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-530 A GRLDTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-531 A DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
972-535 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2003-01-12   
972-535 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-09-30   
972-535 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-08   
972-535 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-535 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2007-09-24   
972-535 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-543 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-553 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
972-575 A PLANTXXFDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-577 A DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
972-578 A PLANTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-583 A ALLNTXSADS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 0   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 1   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 2   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 3   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 4   7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552      
972-583 5   624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-01-26   
972-583 7   624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 8   624H ONVOY SPECTRUM, LLC 552   2024-01-18   
972-583 9   624H ONVOY SPECTRUM, LLC 552   2024-01-18   

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

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