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Dallas, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
214-319 4   9533 SOUTHWESTERN BELL 552      
214-319 5   9533 SOUTHWESTERN BELL 552      
214-319 6   9533 SOUTHWESTERN BELL 552      
214-319 7   9533 SOUTHWESTERN BELL 552      
214-319 8   903C ONVOY, LLC - TX 552   2020-02-28   
214-319 9   9533 SOUTHWESTERN BELL 552      
214-320 A DLLSTXDADS0  9533 SOUTHWESTERN BELL 552      
214-320 0   9533 SOUTHWESTERN BELL 552      
214-320 1   9533 SOUTHWESTERN BELL 552      
214-320 2   9533 SOUTHWESTERN BELL 552      
214-320 3   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-320 4   9533 SOUTHWESTERN BELL 552      
214-320 5   9533 SOUTHWESTERN BELL 552      
214-320 6   9533 SOUTHWESTERN BELL 552      
214-320 7   9533 SOUTHWESTERN BELL 552      
214-320 8   9533 SOUTHWESTERN BELL 552      
214-320 9   9533 SOUTHWESTERN BELL 552      
214-321 A DLLSTXDADS0  9533 SOUTHWESTERN BELL 552      
214-323 A FRSCTXBJPS0  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 552      
214-324 A DLLSTXDADS0  9533 SOUTHWESTERN BELL 552      
214-327 A DLLSTXDADS0  9533 SOUTHWESTERN BELL 552      
214-327 0   9533 SOUTHWESTERN BELL 552      
214-327 1   9533 SOUTHWESTERN BELL 552      
214-327 2   9533 SOUTHWESTERN BELL 552      
214-327 3   6529 T-MOBILE USA, INC. 552   2025-03-06   
214-327 4   9533 SOUTHWESTERN BELL 552      
214-327 5   9533 SOUTHWESTERN BELL 552      
214-327 6   9533 SOUTHWESTERN BELL 552      
214-327 7   9533 SOUTHWESTERN BELL 552      
214-327 8   9533 SOUTHWESTERN BELL 552      
214-327 9   624H ONVOY SPECTRUM, LLC 552   2022-01-14   
214-328 A DLLSTXDADS0  9533 SOUTHWESTERN BELL 552      
214-329 A DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-329 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-21   
214-329 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-12   
214-329 2   5562 METROPCS, INC. 552   2005-07-16   
214-329 3   5562 METROPCS, INC. 552   2020-04-16   
214-329 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
214-329 5   5562 METROPCS, INC. 552   2005-04-04   
214-329 6   5562 METROPCS, INC. 552   2005-04-04   
214-329 7   5562 METROPCS, INC. 552   2005-04-04   
214-329 8   5562 METROPCS, INC. 552   2005-04-04   
214-329 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-11-11   
214-330 A DLLSTXFEDS0  9533 SOUTHWESTERN BELL 552      
214-331 A DLLSTXFEDS0  9533 SOUTHWESTERN BELL 552      
214-333 A DLLSTXFEDS0  9533 SOUTHWESTERN BELL 552      
214-337 A DLLSTXFEDS0  9533 SOUTHWESTERN BELL 552      
214-339 A DLLSTXFEDS0  9533 SOUTHWESTERN BELL 552      
214-340 A DLLSTXDIDS0  9533 SOUTHWESTERN BELL 552      
214-341 A DLLSTXDIDS0  9533 SOUTHWESTERN BELL 552      

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

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