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: ELPYTXZC0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-237 0 Vinton TX 515J IP HORIZON LLC 540      
915-266 A El Paso TX 515J IP HORIZON LLC 540      
915-295 1 Clint TX 515J IP HORIZON LLC 540      
915-933 0 Canutillo TX 515J IP HORIZON LLC 540      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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