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: ELPSTXEY3MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-200 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-237 A Vinton TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-271 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-315 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-317 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-613 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-808 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      
915-996 A El Paso TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 540      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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