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.


NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
915-828 A Guadalupe Peak TX DLCYTXXADS0  540      
915-964 A Dell City TX DLCYTXXADS0  540      
915-986 A Mile High TX DLCYTXXADS0  540      
915-988 A Desert Haven TX DLCYTXXADS0  540      

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.