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: DLLSTXDSDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
469-658 A De Soto TX 9533 SOUTHWESTERN BELL 552      
469-658 3 De Soto TX 9533 SOUTHWESTERN BELL 552      
972-217 A De Soto (Ovilla) TX 9533 SOUTHWESTERN BELL 552      
972-217 1 De Soto (Ovilla) TX 9533 SOUTHWESTERN BELL 552      
972-223 A De Soto TX 9533 SOUTHWESTERN BELL 552      
972-230 A De Soto TX 9533 SOUTHWESTERN BELL 552      
972-274 A De Soto TX 9533 SOUTHWESTERN BELL 552      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.