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.

NPA: 254 [Rate centres in NPA 254] [Dial plan for NPA 254]

NXX: 324

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-324 A Hillsboro TX WACOTX01XDX  004F BANDWIDTH.COM CLEC, LLC - TX 556      
254-324 0 Hillsboro TX   515J IP HORIZON LLC 556   2024-05-06   
254-324 1 Hillsboro TX WACOTX01XIY  515J IP HORIZON LLC 556   2024-05-06   
254-324 2 Hillsboro TX WACOTX01XCY  624H ONVOY SPECTRUM, LLC 556   2021-07-05   
254-324 3 Hillsboro TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2021-09-26   
254-324 4 Hillsboro TX WACOTX01XIX  903C ONVOY, LLC - TX 556   2021-09-26   
254-324 6 Hillsboro TX WACOTX01XDX  004F BANDWIDTH.COM CLEC, LLC - TX 556      
254-324 7 Hillsboro TX WACOTX01XDX  004F BANDWIDTH.COM CLEC, LLC - TX 556      
254-324 8 Hillsboro TX WACOTX01XDX  004F BANDWIDTH.COM CLEC, LLC - TX 556      
254-324 9 Hillsboro TX WACOTX01XDX  004F BANDWIDTH.COM CLEC, LLC - TX 556      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.