Local Calling Guide

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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-339 A Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 0 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 1 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 2 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 3 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 4 Salem OR   5562 METROPCS, INC. 672   2006-05-08   
503-339 5 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-05-12   
503-339 6 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-05-12   
503-339 7 Salem OR   318J COMCAST IP PHONE, LLC 672   2007-07-16   
503-339 8 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-339 9 Salem OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      

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

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