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.

Kennedale EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
817-516 A FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-516 0 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-516 1   515J IP HORIZON LLC 552   2021-05-10   
817-516 2   792K CHARTER IP ENABLED SERVICES, LLC 552   2014-03-07   
817-516 3 DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2008-07-11   
817-516 4 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2003-10-27   
817-516 5 RCSNTXHVBMD  516C AT&T CORP. 552   2006-05-02   
817-516 6 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2022-10-28   
817-516 7 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-516 8 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-516 9   145J TERRA NOVA TELECOM INC. 552   2022-05-05   
817-572 A FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 0 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 1 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 2 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 3 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 4 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 5 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 6 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 7 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      
817-572 8   903C ONVOY, LLC - TX 552   2025-03-09   
817-572 9 FTWOTXKEDS0  9533 SOUTHWESTERN BELL 552      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.