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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-436 A Cannon Beach OR CNBHOR64DS0  9638 QWEST CORPORATION 672      
503-436 0 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 1 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 2 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 3 Cannon Beach OR   750E ONVOY, LLC - OR 672   2020-11-10   
503-436 4 Cannon Beach OR   792K CHARTER IP ENABLED SERVICES, LLC 672   2007-07-17   
503-436 5 Cannon Beach OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-01-27   
503-436 6 Cannon Beach OR   750E ONVOY, LLC - OR 672   2012-09-26   
503-436 7 Cannon Beach OR   750E ONVOY, LLC - OR 672   2007-08-12   
503-436 8 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 9 Cannon Beach OR   9638 QWEST CORPORATION 672      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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