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Fort Worth, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
817-231 A FTWOTXCEDS0  9533 SOUTHWESTERN BELL 552      
817-231 0 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-07-03   
817-231 1 DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-24   
817-231 2 DLLTTXID1MD  5562 METROPCS, INC. 552   2005-12-15   
817-231 3 DLLTTXID1MD  5562 METROPCS, INC. 552   2005-12-15   
817-231 4 FTWOTXCEDS0  9533 SOUTHWESTERN BELL 552      
817-231 5 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-05-15   
817-231 6 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-05-15   
817-231 7 DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-05-15   
817-231 8 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2004-10-18   
817-231 9 DLLTTXID1MD  5562 METROPCS, INC. 552   2005-12-15   
817-232 A FTWOTXCEDS0  9533 SOUTHWESTERN BELL 552      
817-234 A FTWOTXCEDS0  9533 SOUTHWESTERN BELL 552      
817-236 A FTWOTXBERS0  9533 SOUTHWESTERN BELL 552      
817-237 A FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 A FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 0 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 1 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 2 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 3   792K CHARTER IP ENABLED SERVICES, LLC 552   2005-12-25   
817-238 4 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 5 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 6 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 7 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 8 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-238 9 FTWOTXLWDS0  9533 SOUTHWESTERN BELL 552      
817-244 A FTWOTXCIDS0  9533 SOUTHWESTERN BELL 552      
817-245 A FTWOTXCEDS0  9533 SOUTHWESTERN BELL 552      
817-246 A FTWOTXWSDS0  9533 SOUTHWESTERN BELL 552      
817-248 A FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-249 A FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 0 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 1 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 2 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 3 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 4 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 5 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 6 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 7 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 8 FTWOTXBBDS0  9533 SOUTHWESTERN BELL 552      
817-249 9 DLLTTXID1MD  5562 METROPCS, INC. 552   2017-11-17   
817-250 A FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-252 A FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-252 0 FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-252 1 FTWOTXCRRS1  9533 SOUTHWESTERN BELL 552      
817-252 2 FTWOTXARRS1  9533 SOUTHWESTERN BELL 552      
817-252 3 FTWOTXATRS1  9533 SOUTHWESTERN BELL 552      
817-252 4 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-02-22   
817-252 5 FTWOTXBNRS1  9533 SOUTHWESTERN BELL 552      
817-252 6 FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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