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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
214-442 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-442 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-442 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-442 7   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-442 8   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-442 9   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-443 A DLLSTXLADS0  9533 SOUTHWESTERN BELL 552      
214-445 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 0   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-445 7   5562 METROPCS, INC. 552   2006-08-14   
214-445 8   5562 METROPCS, INC. 552   2017-02-13   
214-445 9   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-446 A DLLSTXBKDS1  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 552      
214-447 A DLLSTXBKDS1  7715 MATRIX TELECOM, LLC. S/I/I TNCI - TX 552      
214-447 0   004F BANDWIDTH.COM CLEC, LLC - TX 552      
214-447 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2020-03-10   
214-447 2   5562 METROPCS, INC. 552   2020-03-14   
214-447 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2020-03-10   
214-447 4   5562 METROPCS, INC. 552   2020-03-14   
214-447 5   5562 METROPCS, INC. 552   2020-03-14   
214-447 6   5562 METROPCS, INC. 552   2020-04-16   
214-447 7   903C ONVOY, LLC - TX 552      
214-447 8   5562 METROPCS, INC. 552   2020-03-14   
214-447 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-451 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 0   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 1   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 2   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 3   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-451 7   5562 METROPCS, INC. 552   2006-08-22   
214-451 8   5562 METROPCS, INC. 552   2006-08-22   
214-451 9   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
214-452 A   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 6   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-452 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-452 8   145J TERRA NOVA TELECOM INC. 552   2024-06-27   
214-452 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 A   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-453 7   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-453 8   903C ONVOY, LLC - TX 552   2004-11-11   
214-453 9   5562 METROPCS, INC. 552   2006-08-22   
214-456 A DLLSTXTADS0  9533 SOUTHWESTERN BELL 552      
214-459 A DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 0   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 1   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 2   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 3   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 4   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 5   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 6   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 7   5562 METROPCS, INC. 552   2009-03-16   
214-459 8   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-459 9   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-461 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
214-462 A DLLSTXRIDS0  9533 SOUTHWESTERN BELL 552      
214-462 0   5562 METROPCS, INC. 552   2006-08-22   
214-462 1   9533 SOUTHWESTERN BELL 552      
214-462 2   5562 METROPCS, INC. 552   2006-08-22   
214-462 3   9533 SOUTHWESTERN BELL 552      
214-462 4   9533 SOUTHWESTERN BELL 552      
214-462 5   5562 METROPCS, INC. 552   2011-02-22   
214-462 6   9533 SOUTHWESTERN BELL 552      
214-462 7   903C ONVOY, LLC - TX 552   2011-01-24   
214-462 8   5562 METROPCS, INC. 552   2011-02-22   
214-462 9   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2009-06-19   
214-464 A DLLSTXRIDS4  9533 SOUTHWESTERN BELL 552      
214-465 A DLLSTXRIDS3  9533 SOUTHWESTERN BELL 552      
214-466 A DLLSTXRIDS0  9533 SOUTHWESTERN BELL 552      
214-466 0   5562 METROPCS, INC. 552   2006-08-22   
214-466 1   903C ONVOY, LLC - TX 552   2006-01-05   
214-466 2   903C ONVOY, LLC - TX 552   2006-01-05   
214-466 3   5562 METROPCS, INC. 552   2007-01-29   
214-466 4   9533 SOUTHWESTERN BELL 552      
214-466 5   9533 SOUTHWESTERN BELL 552      
214-466 6   903C ONVOY, LLC - TX 552   2006-01-05   
214-466 7   903C ONVOY, LLC - TX 552   2006-01-05   
214-466 8   903C ONVOY, LLC - TX 552   2006-01-05   
214-466 9   5562 METROPCS, INC. 552   2006-08-22   

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

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