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: 737

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-737 A Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 0 Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 1 Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 2 Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 3 Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 4 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 5 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 6 Portland OR PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 9 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2004-11-18   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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