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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
214-256 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-05   
214-256 6   5562 METROPCS, INC. 552   2011-02-22   
214-256 7   9533 SOUTHWESTERN BELL 552      
214-256 8   5562 METROPCS, INC. 552   2011-02-22   
214-256 9   9533 SOUTHWESTERN BELL 552      
214-257 A DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
214-257 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-22   
214-257 1   7421 AT&T - LOCAL 552      
214-257 2   7421 AT&T - LOCAL 552      
214-257 3   5562 METROPCS, INC. 552   2017-01-05   
214-257 4   5562 METROPCS, INC. 552   2017-01-05   
214-257 5   5562 METROPCS, INC. 552   2016-12-04   
214-257 6   5562 METROPCS, INC. 552   2017-10-03   
214-257 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-22   
214-257 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-22   
214-257 9   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-258 A DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
214-258 0   7421 AT&T - LOCAL 552      
214-258 1   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-258 2   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-258 3   5562 METROPCS, INC. 552   2008-11-19   
214-258 4   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
214-258 5   793K TWC IP ENABLED SERVICES, LLC 552   2015-11-27   
214-258 6   793K TWC IP ENABLED SERVICES, LLC 552   2015-11-27   
214-258 7   7421 AT&T - LOCAL 552      
214-258 8   5562 METROPCS, INC. 552   2008-11-19   
214-258 9   7421 AT&T - LOCAL 552      
214-259 A DLLSTXRIXPZ  7421 AT&T - LOCAL 552      
214-259 0   7421 AT&T - LOCAL 552      
214-259 1   7421 AT&T - LOCAL 552      
214-259 2   7421 AT&T - LOCAL 552      
214-259 3   7421 AT&T - LOCAL 552      
214-259 4   7421 AT&T - LOCAL 552      
214-259 5   5562 METROPCS, INC. 552   2008-11-19   
214-259 6   5562 METROPCS, INC. 552   2008-11-19   
214-259 7   7421 AT&T - LOCAL 552      
214-259 8   7421 AT&T - LOCAL 552      
214-259 9   7421 AT&T - LOCAL 552      
214-261 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
214-262 A IRNGTXXGDS1  0701 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
214-265 A DLLSTXEMDS0  9533 SOUTHWESTERN BELL 552      
214-266 A DLLSTXLADS0  9533 SOUTHWESTERN BELL 552      
214-267 A DLLSTXMEDS0  9533 SOUTHWESTERN BELL 552      
214-267 0   9533 SOUTHWESTERN BELL 552      
214-267 1   9533 SOUTHWESTERN BELL 552      
214-267 2   9533 SOUTHWESTERN BELL 552      
214-267 3   9533 SOUTHWESTERN BELL 552      
214-267 4   9533 SOUTHWESTERN BELL 552      
214-267 5   9533 SOUTHWESTERN BELL 552      
214-267 6   9533 SOUTHWESTERN BELL 552      
214-267 7   9533 SOUTHWESTERN BELL 552      
214-267 8   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-03-07   
214-267 9   004F BANDWIDTH.COM CLEC, LLC - TX 552   2009-03-07   
214-269 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 0   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 1   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 2   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 3   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 4   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-05   
214-269 6   5562 METROPCS, INC. 552   2005-07-08   
214-269 7   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 8   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-269 9   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 0   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 1   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 2   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 3   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-270 4   5562 METROPCS, INC. 552   2017-01-05   
214-270 5   5562 METROPCS, INC. 552   2016-12-04   
214-270 6   5562 METROPCS, INC. 552   2018-11-29   
214-270 7   5562 METROPCS, INC. 552   2017-01-05   
214-270 8   5562 METROPCS, INC. 552   2018-07-21   
214-270 9   5562 METROPCS, INC. 552   2006-01-01   
214-271 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-271 0   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-271 1   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-271 2   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-271 3   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-271 4   903C ONVOY, LLC - TX 552   2005-01-21   
214-271 5   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2018-06-17   
214-271 6   5562 METROPCS, INC. 552   2018-07-21   
214-271 7   5562 METROPCS, INC. 552   2006-01-29   
214-271 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-05-06   
214-271 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-05-06   
214-272 A DLLSTXALDS4  903C ONVOY, LLC - TX 552      
214-272 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2008-03-13   
214-272 1   318C CEBRIDGE TELECOM TX , L.P. - TX 552   2008-03-31   
214-272 2   903C ONVOY, LLC - TX 552   2007-09-02   
214-272 3   793K TWC IP ENABLED SERVICES, LLC 552   2008-03-31   
214-272 4   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2008-02-23   
214-272 5   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2008-02-23   
214-272 6   7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2008-02-23   
214-272 7   793K TWC IP ENABLED SERVICES, LLC 552   2008-03-31   
214-272 8   793K TWC IP ENABLED SERVICES, LLC 552   2008-03-31   
214-272 9   793K TWC IP ENABLED SERVICES, LLC 552   2008-03-31   
214-273 A DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
214-275 A DLLSTXEVDS0  9533 SOUTHWESTERN BELL 552      
214-275 0   9533 SOUTHWESTERN BELL 552      

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

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