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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Switch: HSTYTXXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
979-242 A Plum TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      
979-247 A Hostyn TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      
979-249 A Warrenton TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      
979-263 A Borden TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      
979-561 A High Hill TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      
979-562 A Moravia TX 2059 COLORADO VALLEY TEL. COOP., INC. 570      

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

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