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: DNTNNCXAPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-490 A Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-490 3 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424   2011-11-03   
336-859 A Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 0 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 1 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 2 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 3 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 4 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 5 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 7 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      
336-859 9 Denton NC 0476 WINDSTREAM NORTH CAROLINA, INC. 424      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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