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: HSTNTXMOWMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
832-408 A Houston TX 9558 INTRADO COMMUNICATIONS, LLC 560      
936-353 A Timpson TX 683G INTRADO COMMUNICATIONS LLC 560      
936-706 A Chireno TX 683G INTRADO COMMUNICATIONS LLC 560      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.