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Fort Worth, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
817-814 4 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-814 5 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-814 6 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-814 7 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-814 8 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-814 9 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 A FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552      
817-815 0 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 1 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 2 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 3 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 4 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 5 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 6 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 7 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 8 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-815 9 FTWOTXEDDS0  9533 SOUTHWESTERN BELL 552   2005-12-22   
817-817 A DLLSTX3769Z  473F USFON, INC. - TX 552      
817-817 0 DLLSTX3769Z  139F WORLDCALL INTERCONNECT INC. 552   2023-03-11   
817-817 1 DLLSTX3769Z  139F WORLDCALL INTERCONNECT INC. 552   2023-03-11   
817-817 2 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 3 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 4 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 5 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 6 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 7 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 8 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-817 9 DLLSTX3769Z  473F USFON, INC. - TX 552   2023-03-10   
817-820 A FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 0 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 1 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 2 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 3 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 4 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 5 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 6 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 7 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 8 FTWOTXEDDS5  9533 SOUTHWESTERN BELL 552      
817-820 9 DLLTTXID1MD  5562 METROPCS, INC. 552   2011-03-02   
817-831 A FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 A FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 0 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 1 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 2 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 3 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 4 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 5 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 6 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 7 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      
817-834 8 FTWOTXTEDS0  9533 SOUTHWESTERN BELL 552      

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

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