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

NXX: 568

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-568 A Mart TX WACOTX01XIY  515J IP HORIZON LLC 556   2024-06-06   
254-568 0 Mart TX   515J IP HORIZON LLC 556   2025-02-27   
254-568 1 Mart TX WACOTX01XIY  515J IP HORIZON LLC 556   2024-06-06   
254-568 2 Mart TX WACOTX01XIY  515J IP HORIZON LLC 556   2024-06-06   
254-568 3 Mart TX   515J IP HORIZON LLC 556   2025-02-27   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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