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: ELPSTXSEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-230 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-236 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-540 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-612 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-771 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-772 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-774 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-775 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-778 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-779 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-781 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-782 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-783 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-843 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-880 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 A El Paso TX 9533 SOUTHWESTERN BELL 540      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.