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: PTLEORXMAMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
971-754 A Portland OR 7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
971-754 3 Portland OR 7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672   2016-09-16   
971-998 1 Portland OR 7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672   2009-11-22   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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