Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Fort Worth, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
817-569 1 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 2 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 3 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 4 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 5 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 6 DLLSTXTLDS8  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2013-08-16   
817-569 7 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 8 FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-569 9 DLLTTX01CMD  5562 METROPCS, INC. 552   2018-07-21   
817-570 A FTWOTXPEDS0  9533 SOUTHWESTERN BELL 552      
817-585 A FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-585 0 DLLTTX01CMD  5562 METROPCS, INC. 552   2011-02-15   
817-585 1 FTWPTXZPPS0  353D CHARTER FIBERLINK TX-CCO, LLC - TX 552   2010-06-30   
817-585 2 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2011-12-30   
817-585 3 DLLTTX01CMD  5562 METROPCS, INC. 552   2011-03-24   
817-585 4 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2011-03-11   
817-585 5 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2011-03-11   
817-585 6 DLLTTX01CMD  5562 METROPCS, INC. 552   2011-03-24   
817-585 7 FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-585 8 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2010-11-09   
817-585 9 DLLSTXSQDS2  8958 XO TEXAS, INC. 552   2010-11-09   
817-593 A FTWOTXEDDS3  9533 SOUTHWESTERN BELL 552      
817-603 A DLLFTXFQDS1  7516 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552      
817-603 0   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 1   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 2   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 3   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 4   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 5   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 6   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 7   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 8   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-603 9   7263 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 552   2005-02-03   
817-607 A DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 0 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 1 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 2 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 3 DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2007-12-15   
817-607 4 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 5 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 6 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 7 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-607 8 DLLSTXSQDS4  327E YMAX COMMUNICATIONS CORP. - TX 552   2008-04-25   
817-607 9 DLLSTXMCDS0  9533 SOUTHWESTERN BELL 552      
817-615 A FTWOTXECDS0  9533 SOUTHWESTERN BELL 552      
817-615 0 DLLTTX01CMD  5562 METROPCS, INC. 552   2008-03-09   
817-615 1 DLLTTX01CMD  5562 METROPCS, INC. 552   2007-05-25   
817-615 2 FTWOTXECDS0  9533 SOUTHWESTERN BELL 552      
817-615 3 FTWOTXECDS0  9533 SOUTHWESTERN BELL 552      
817-615 4 FTWOTXECDS0  9533 SOUTHWESTERN BELL 552      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.