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: THDLORXA7MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
458-237 1 Odell OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2022-05-22   
509-281 3 White Salmon WA 814D CHARTER FIBERLINK WA - CCVII, LLC - WA 672   2008-05-18   
509-365 8 Lyle WA 814D CHARTER FIBERLINK WA - CCVII, LLC - WA 672   2008-05-18   
509-369 1 Klickitat WA 814D CHARTER FIBERLINK WA - CCVII, LLC - WA 672   2008-07-23   
509-748 4 Dallesport WA 814D CHARTER FIBERLINK WA - CCVII, LLC - WA 672   2008-05-18   
541-402 0 Parkdale OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2022-05-31   
541-436 4 Hood River OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2008-04-16   
541-769 A The Dalles OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672      
541-769 0 The Dalles OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2008-04-16   
541-769 1 The Dalles OR 352D CHARTER FIBERLINK OR-CCVII, LLC - OR 672   2013-05-13   

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

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