Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 541 [Rate centres in NPA 541] [Dial plan for NPA 541]

NXX: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
541-320 A Sumpter OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
541-320 0 Sumpter OR   157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2023-05-25   
541-320 1 Sumpter OR   750E ONVOY, LLC - OR 672   2012-09-26   
541-320 2 Sumpter OR   750E ONVOY, LLC - OR 672   2013-01-26   
541-320 3 Sumpter OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2014-02-18   
541-320 4 Sumpter OR   750E ONVOY, LLC - OR 672   2012-12-15   
541-320 5 Sumpter OR   750E ONVOY, LLC - OR 672   2012-12-15   
541-320 6 Sumpter OR   750E ONVOY, LLC - OR 672   2012-12-15   
541-320 7 Sumpter OR   750E ONVOY, LLC - OR 672   2007-04-15   
541-320 8 Sumpter OR   750E ONVOY, LLC - OR 672   2013-01-26   
541-320 9 Sumpter OR   157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2014-10-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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