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.

Switch: DLLSTX97XGX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-443 A Glen Rose TX 490J DISH WIRELESS, LLC 552      
682-369 A Alvarado TX 490J DISH WIRELESS, LLC 552      
682-370 A Reno TX 490J DISH WIRELESS, LLC 552      
940-334 A Denton TX 490J DISH WIRELESS, LLC 552      
945-235 A Dallas TX 490J DISH WIRELESS, LLC 552      
945-237 A McKinney TX 490J DISH WIRELESS, LLC 552      
945-238 A Terrell TX 490J DISH WIRELESS, LLC 552      
945-263 A Bardwell TX 490J DISH WIRELESS, LLC 552      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.