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: LGVWTXBA56Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
430-240 3 Longview TX 490J DISH WIRELESS, LLC 554   2024-01-13   
430-287 3 Tyler TX 490J DISH WIRELESS, LLC 554   2023-06-30   
430-294 A Texarkana TX 490J DISH WIRELESS, LLC 554      
430-294 9 Texarkana TX 490J DISH WIRELESS, LLC 554   2022-05-01   
870-621 1 Texarkana AR 490J DISH WIRELESS, LLC 554   2022-10-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.