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: WACOTX01XIY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-416 A Waco TX 515J IP HORIZON LLC 556      
254-568 A Mart TX 515J IP HORIZON LLC 556   2024-06-06   
254-571 A Eddy TX 515J IP HORIZON LLC 556   2024-07-22   
254-573 A Gholson TX 515J IP HORIZON LLC 556   2024-07-22   
254-575 A Hallsburg TX 515J IP HORIZON LLC 556   2024-07-22   
254-581 A Temple TX 515J IP HORIZON LLC 556   2024-07-22   

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

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