Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 905

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-905 A Clackamas OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-905 0 Clackamas OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-905 1 Clackamas OR   750E ONVOY, LLC - OR 672      
503-905 2 Clackamas OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-905 3 Clackamas OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2006-01-07   
503-905 4 Clackamas OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-905 5 Clackamas OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-905 6 Clackamas OR   750E ONVOY, LLC - OR 672      
503-905 7 Clackamas OR   750E ONVOY, LLC - OR 672      
503-905 8 Clackamas OR   750E ONVOY, LLC - OR 672      
503-905 9 Clackamas OR   750E ONVOY, LLC - OR 672      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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