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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OCN: 7809 W T SERVICES, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
806-250 A Friona TX FRINTXAEDS0  546      
806-251 A Bovina TX FRINTXAEDS0  546      
806-349 1 Amarillo TX FRINTXAEDS0  546   2013-03-18   
806-360 A Hereford TX FRINTXAEDS0  546      
806-394 A Hereford TX FRINTXAEDS0  546      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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