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: 742

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-742 A Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 0 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 1 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 2 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 3 Clackamas OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2009-10-02   
503-742 4 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 5 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 6 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 7 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 8 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      
503-742 9 Clackamas OR ORCYOR18DS0  9638 QWEST CORPORATION 672      

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

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