Local Calling Guide

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

NXX: 484

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-484 A Portland OR PTLDOR62DS2  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-484 0 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2015-05-04   
503-484 1 Portland OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-484 2 Portland OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-484 3 Portland OR   6529 T-MOBILE USA, INC. 672   2004-06-03   
503-484 4 Portland OR   6529 T-MOBILE USA, INC. 672   2004-04-19   
503-484 5 Portland OR   6529 T-MOBILE USA, INC. 672   2002-12-02   
503-484 6 Portland OR   6529 T-MOBILE USA, INC. 672   2005-07-04   
503-484 7 Portland OR   6529 T-MOBILE USA, INC. 672   2002-12-02   
503-484 8 Portland OR   6529 T-MOBILE USA, INC. 672   2002-12-02   
503-484 9 Portland OR   9638 QWEST CORPORATION 672      

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

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